$1.4B
merger lifts Westgold into ASX 200
ASX Release
Westgold is an agile ASX200 Australian gold company. With
six operating mines and combined processing capacity of ~7Mtpa
across two of Western Australia's
most prolific gold regions – we have a clear vision and strategy to
sustainably produce +500,000 ozpa from FY26/27.
PERTH, Western
Australia, Oct. 31, 2024 /CNW/ - Westgold Resources
Limited (ASX: WGX) (TSX: WGX) (OTCQX: WGXRF) - Westgold or the
Company) is pleased to report results for the period ending
30 September 2024 (Q1
FY25).
OPERATIONS
Safety Performance
Total Recordable Injury Frequency Rate (TRIFR) of 7.37 / million
hours – an increase of ~8% as we integrate the Southern
Goldfields Operations
|
|
Q1 FY25 record
gold production post Karora merger
77,369oz Au @ AISC of $2,422/oz during a transitional quarter
including only 2 months Southern Goldfields production
|
On Track for FY25
Guidance 400,000 to 420,000 ozpa @ AISC of $2,000 - $2,300 with
ramp-up back ended in H2 FY25
|
|
EXPLORATION
& RESOURCE DEVELOPMENT
Seventeen drill rigs operating across
portfolio
|
Bluebird – South
Junction Ore Reserve increased by 233% to 3.0Mt @ 2.8g/t Au for
277koz
|
Updated Group
Mineral Resource Estimate (+60% to 13.2Moz Au) and Ore
Reserve (+69% to 3.3Moz Au)
|
Impressive drill results from both the Murchison and
Southern Goldfields:
- 19.00m @
13.44g/t Au from 24SJDD028 at
South Junction (See ASX Announcement of 5 September
2024)
- 4.00m @ 22.45g/t
Au in hole WF440N1-01AR at
Beta Hunt Fletcher Zone (See ASX Announcement of 21 August
2024)
|
|
CORPORATE
$1.4B Merger
completed - Westgold listed on TSX and rejoins S&P/ASX
200
|
Closing cash,
bullion, and liquid investments at 30 September of $103M and
undrawn $100M Revolving Corporate Facility
|
Final Dividend
declared 1.25 cent per share fully franked
|
Westgold remains
100% unhedged – offering full exposure to escalating gold
price
|
Westgold Managing Director and CEO Wayne Bramwell commented:
"Q1 FY25 represents both a transformational and a
transitional period for Westgold.
On 1 August Westgold completed a $1.4B merger with Karora Resources that has
transformed Westgold into a 400,000+ ozpa, top five Australian
gold producer. On 6 August we commenced trading on the Toronto
Stock Exchange and in September, Westgold joined the ranks of
S&P's ASX200.
Six quarters of disciplined and sustained cash-build from our
Murchison operations delivered free cash and drove the value in
Westgold's scrip that allowed us to complete the merger without a
capital raise or debt draw down debt. Importantly at the end of the
quarter, Westgold remained unhedged and debt free, with its
$100M Revolving Corporate Facility
undrawn.
The operating results for this quarter mark a transition in
scale for Westgold and include three months of gold production from
the Murchison operations, but only two months' production from the
Southern Goldfields. The expanded business delivered a record
77,369 ounces (~90koz normalised for a full quarter of Southern
Goldfields production) at an AISC of $2,422/oz, generating $29M in net mine cashflow.
Our focus post-merger has been to rapidly identify, then
address key risks and opportunities across the Southern Goldfields
operations. Early activities include deploying additional safety
and operational management to supplement the site teams and
expedite remedial maintenance and upgrades in basic mine
infrastructure (water, ventilation, power). These changes have had
immediate positive impact on mine outputs at both Beta Hunt and
Higginsville late in the quarter and will see productivity improve
as each area is addressed.
Integration across the business continues and importantly,
Westgold remains on track to meet our FY25 guidance. Production and
cost guidance is geared to the second half of the year as Bluebird
South-Junction ramps up to a run rate of more than 1Mtpa, Beta Hunt
delivers consistent output of more than 2Mtpa run rate and mining
commences at Great Fingall.
Westgold now has an extensive, pipeline of projects with a
landholding of more than 3,200km2 across two of
Australia's most prolific gold
regions. Drilling will unlock value and as planned we have rapidly
mobilised additional drills to Beta Hunt and prioritised targets
across Higginsville.
The 100 day integration plan will be complete during Q2 FY25
and we are confident in higher mine outputs and reduced costs
across the business as these programmes are systematically rolled
out and synergies delivered."
ENDS
Executive Summary
Cash Position at 30 September
2024
Westgold closed the quarter with cash, bullion and liquid
investments of $103M (see
Figure 1). Notably, this result was net of the significant
cash component and major once-off costs relating to the Company's
$1.4B merger with TSX listed Karora
Resources Inc (Karora) during the period.
Costs relating to the transaction include $125M cash payment to Karora shareholders,
$28M in change of control payments to
Karora's directors, executives and advisor fees.
Notes
- Cash acquired of $32M from Karora
on 1 August is net of the Macquarie debt repayment of $44M and Culico Metals and Kali Metals
contributions of $11M.
- Operating Cash Flows includes:
- Southern Goldfields for August and September only
- Merger Costs of $153M relates to:
- $125M cash consideration paid to
Karora Resources shareholders,
- $21M change of control payments
to Karora's Executives and Directors,
- $7M to advisors' costs (legal,
financial, taxation and corporate advisory).
Group Production Highlights – Q1 FY25
Westgold produced 77,369 ounces of gold in Q1 FY25, its
highest quarterly gold production yet, returning net mine
cashflow of $29M. This result
was from three months of production from the Murchison (52,889
ounces) but only two months of production from the Southern
Goldfields operations (24,480 ounces).
All-In Sustaining Cost (AISC) for the quarter was
$2,422/oz (Q4 FY24
$2,041/oz).
The elevated costs in Q1 FY25 reflect the transitional nature of
the quarter. In the Southern Goldfields production was impacted by
the poor performance of the Pioneer Open Pit at Higginsville and
lower than expected ounce production from Beta Hunt.
Capital growth projects continued to advance across the Group
whilst the Fender underground at Cue transitioned to commercial
production during the quarter.
The Company sold 72,202 oz of gold for the quarter
achieving a record price of $3,723/oz, generating $269M in revenue. With Westgold free of any
fixed forward sales contracts, the Company continues to offer
shareholders full exposure to record spot gold prices.
Westgold's operations generated $101M of mine
operating cashflows with the achieved gold price
$1,301/oz over AISC. AISC for Q1 FY25 of
$187M (Q4 FY24 of $108M) was impacted by $65M in additional costs from the Southern
Goldfields and Fender transitioning to commercial
production.
Capital expenditure during Q1 FY25 of $58M (Q4
FY24 $64M) includes $39M investment in growth projects
(Bluebird-South Junction and Big Bell expansions and the Great
Fingall development), and upgrading processing facilities and
infrastructure.
Investment in exploration and resource development of
$14M for the quarter was
focussed on Bluebird-South Junction and Starlight in the Murchison,
and the Fletcher Zone and Two Boys underground in the Southern
Goldfields.
The net mine cash inflow for Q1 FY25 was $29M
(refer Table 1 under Group Performance Metrics).
Environmental, Social and Governance (ESG)
People
During the quarter female participation in the workforce
increased from 12.5% to 14.6%. Family and medical leave guidelines
were rolled out to the wider business, with a pleasing increase in
men utilising paternal leave as either the primary or secondary
carer.
Staff retention continued to improve, with record low
turnover.
At the end of the quarter, Westgold employed 2,100 employees and
contractors. Integration of the Southern Goldfields was a major
focus as policies, procedures and processes were aligned.
Safety, Health, the Environment and Community
Westgold's Murchison business achieved a 16.44% reduction in its
key safety metric for the full FY24 financial year. With the
integration of the Southern Goldfields assets, the Total Recordable
Injury Frequency Rate (TRIFR) increased to 7.37 injuries per
million hours worked, representing an increase of 7.59% quarter on
quarter.
The business incurred two Lost Time Injuries, increasing the
Lost Time Injury Frequency Rate (LTIFR) by 61.29% to 1.00.
The High Potential Incident frequency decreased by 24.17% to 5.18.
Significant Psychosocial Harm Events remains at 0.00.
One Significant Environmental Incident was recorded during the
quarter with a pipeline break at the Higginsville processing
facility resulting in a tailings spill. The spill was reported to
the regulator and immediately remediated to minimise environmental
impact.
Group Performance Metrics
Westgold's quarterly physical and financial outputs for Q1
FY25 are summarised below. The Group operates across the
Murchison and Southern Goldfields regions of Western Australia with the Murchison
Operations incorporating four underground mines (Bluebird-South
Junction, Starlight, Big Bell, and Fender) and three processing
hubs (Fortnum, Tuckabianna and Bluebird).
Westgold's merger with Karora Resources completed on
1 August 2024. The Karora assets are
grouped and reported as Westgold's Southern Goldfields operations –
incorporating the Beta Hunt and Two Boys underground mines (Pioneer
open pit closed in September) and two processing hubs (Higginsville
and Lakewood).
Table 1: Westgold Q1 FY25 Performance
Physical Summary
|
Units
|
Murchison
|
Southern Goldfields
|
Group
|
ROM - UG Ore
Mined
|
t
|
650,066
|
291,442
|
941,508
|
UG Grade
Mined
|
g/t
|
2.4
|
2.3
|
2.4
|
ROM - OP Ore
Mined
|
t
|
-
|
70,388
|
70,388
|
OP Grade
Mined
|
g/t
|
-
|
2.1
|
2.1
|
Ore
Processed
|
t
|
878,890
|
410,671
|
1,289,561
|
Head Grade
|
g/t
|
2.1
|
2.0
|
2.1
|
Recovery
|
%
|
90
|
92
|
90
|
Gold
Produced
|
oz
|
52,889
|
24,480
|
77,369
|
Gold Sold
|
oz
|
49,813
|
22,389
|
72,202
|
Achieved Gold
Price
|
A$/oz
|
3,723
|
3,723
|
3,723
|
Cost
Summary
|
Mining
|
A$'M
|
57
|
31
|
88
|
Processing
|
A$'M
|
32
|
21
|
53
|
Admin
|
A$'M
|
7
|
5
|
11
|
Stockpile
Movements
|
A$'M
|
1
|
(2)
|
(2)
|
Royalties
|
A$'M
|
5
|
5
|
10
|
Cash Cost (produced
oz)
|
A$'M
|
101
|
60
|
161
|
Corporate
Costs
|
A$'M
|
3
|
1
|
4
|
Sustaining
Capital
|
A$'M
|
17
|
5
|
23
|
All-in Sustaining
Costs
|
A$'M
|
121
|
65
|
187
|
All-in Sustaining
Costs
|
A$/oz
|
2,294
|
2,696
|
2,422
|
Notional Cashflow
Summary
|
Notional Revenue
(produced oz)
|
A$'M
|
197
|
91
|
288
|
All-in Sustaining
Costs
|
A$'M
|
(121)
|
(65)
|
(187)
|
Mine Operating
Cashflow
|
A$'M
|
76
|
26
|
101
|
Growth
Capital
|
A$'M
|
(34)
|
(5)
|
(39)
|
Plant and
Equipment
|
A$'M
|
(11)
|
(8)
|
(19)
|
Exploration
Spend
|
A$'M
|
(11)
|
(3)
|
(14)
|
Net Mine
Cashflow
|
A$'M
|
20
|
9
|
29
|
Net Mine
Cashflow
|
A$/oz
|
369
|
367
|
368
|
Q1 FY25 Group Performance Overview
Westgold processed 1,289,561t (Q4 FY24 – 862,889t) of ore
in total at an average grade of 2.1g/t Au (Q4 FY24 – 2.1g/t
Au), producing 77,369oz of gold (Q4 FY24 – 52,795oz). Group
AISC in Q1 FY25 was $187M (Q4 FY24 - $108M). The $79M
increase reflects the enlarged Westgold post-merger (Southern
Goldfields $66M).
MURCHISON
Mining costs in the Murchison were $1,074/oz (Q4 FY25 $817/oz) coinciding with the Fender mine
achieving commercial production on 1 July
2024.
Ore stockpiles built-up during Q4 FY24 as a result of atypical
rainfall in the Murchison were processed in Q1 FY25. As
Bluebird-South Junction ramps up from 500kt to >1Mtpa during the
year, the current reliance on hauling comparatively lower-grade,
stockpiled ore from Fortnum and Cue will reduce accordingly,
improving both economic performance and gold production from the
Murchison operations.
The Bluebird mill commenced planned maintenance on crushing and
milling circuits in September to prepare the processing hub for
higher throughputs and increased delivery of higher grade ore from
an expanded Bluebird-South Junction in H2 FY25.
Total Capital expenditure of $45M,
included Growth Capital ($34M) and
Plant and Equipment ($11M) across the
Murchison operations. Growth Capital related to planned expansions
at Big Bell, Great Fingall development, Bluebird – South Junction and Starlight mine sites. Plant
and Equipment capital related to Processing facilities
($5M), Paste plant ($5M) and Camp upgrades ($1M) during the quarter.
SOUTHERN GOLDFIELDS
Equipment, personnel availability, power, water and ventilation
issues combined to impact mine production performance at Beta Hunt
and Two Boys in August. These issues are being systematically
addressed with operational outputs beginning to improve from
October.
The Pioneer open pit at Higginsville ceased operations during
the quarter. An estimated 1,000oz from the pit was unable to
be recovered following failure of the eastern wall immediately
following the final blast, impacting revenue for the quarter.
Total Capital Expenditure of $13M, included Growth Capital ($5M) and Plant and Equipment ($8M) across the Southern Goldfields operations
relating to Beta Hunt mine, processing facilities and underground
equipment.
Table 2: Q1 FY25 Group Mining Physicals
Murchison
|
Ore Mined
('000 t)
|
Mined Grade
(g/t)
|
Contained ounces
(Oz)
|
Bluebird
|
95
|
3.71
|
11,297
|
Fender
|
75
|
2.45
|
5,851
|
Big Bell
|
307
|
1.94
|
19,143
|
Starlight
|
174
|
2.67
|
14,936
|
|
|
|
|
Southern Goldfields
|
Ore Mined
('000 t)
|
Mined Grade
(g/t)
|
Contained ounces
(Oz)
|
Beta Hunt
|
250
|
2.36
|
18,949
|
Two Boys
|
42
|
2.58
|
3,464
|
Pioneer OP
|
70
|
2.12
|
4,786
|
GROUP
|
1,012
|
2.41
|
78,427
|
Table 3: Q1 FY25 Group Processing Physicals
Murchison
|
Ore Milled
('000 t)
|
Head Grade
(g/t)
|
Recovery
(%)
|
Gold Production
(Oz)
|
Bluebird
|
91
|
3.74
|
93
|
10,149
|
Fender
|
87
|
2.36
|
86
|
5,677
|
Open Pit & Low
Grade1
|
171
|
0.95
|
86
|
4,480
|
Bluebird
Hub
|
349
|
2.03
|
89
|
20,306
|
Big Bell
|
311
|
1.94
|
88
|
16,998
|
Open Pit & Low
Grade
|
23
|
0.81
|
87
|
516
|
Tuckabianna
Hub
|
334
|
1.86
|
87
|
17,514
|
Starlight
|
165
|
2.81
|
95
|
14,155
|
Open Pit & Low
Grade
|
31
|
0.97
|
95
|
914
|
Fortnum
Hub
|
196
|
2.52
|
95
|
15,069
|
|
|
|
|
|
Southern
Operations
|
Ore Milled
('000 t)
|
Head Grade
(g/t)
|
Recovery
(%)
|
Q4
Gold Production
(Oz)
|
Beta Hunt
|
202
|
2.31
|
92
|
13,893
|
Lakewood
Hub
|
202
|
2.31
|
92
|
13,893
|
Beta Hunt
|
32
|
2.16
|
94
|
2,096
|
Two Boys
|
35
|
2.55
|
91
|
2,593
|
Pioneer OP
|
74
|
1.99
|
91
|
4,320
|
Open Pit & Low
Grade
|
68
|
0.81
|
89
|
1,578
|
Higginsville
Hub
|
209
|
1.73
|
92
|
10,587
|
|
|
|
|
|
GROUP
TOTAL
|
1,290
|
2.06
|
90
|
77,369
|
1 Includes
low grade ore mined at Big Bell and trucked to Bluebird
|
Operations Summary
Murchison
![Figure 5: Murchison Location Map (CNW Group/Westgold Resources Limited) Figure 5: Murchison Location Map (CNW Group/Westgold Resources Limited)](https://mma.prnewswire.com/media/2544686/Westgold_Resources_Limited__1_4B_merger_lifts%C2%A0Westgold_into_ASX.jpg)
- Bluebird – South Junction Underground Mine (Meekatharra)
The first South
Junction stope was successfully fired in August, with stopes
on PHO_1095 and BLU_1065 levels mined during the quarter.
Production ramp up slowed temporarily due to equipment availability
and resourcing issues, however these were resolved by the end of
the quarter, with the stoping sequence re-established and
production resuming at the planned rates.
Orders have been placed for additional mobile equipment to support
the ramp up of production into H2 FY25, and the focus remains on
the South Junction Decline and advancing to the next production
SOU_1036 level to expand Bluebird's production to a run rate of
1.2Mtpa in the second half of the financial year.
The Bluebird-South Junction mining complex is growing with the
current expansion of mine outputs driven by the commencement of
mining the South Junction lodes.
This expansion has required investment into an upgrade in the
primary ventilation system, the introduction of paste fill for full
resource extraction and additional mobile equipment. Larger
tonnages per vertical metre of advance will significantly improve
the capital intensity of the mine once the initial capital
investment phase has been completed.
- Bluebird Mill (Meekatharra)
The Bluebird-South Junction and Fender underground mines
were primary sources of ore feed to the Bluebird processing hub.
Plant throughput of ~349,000t was slightly lower (-5%) compared to
the previous quarter due to planned maintenance. Work was
carried out on crushing and milling components in preparation for
the ramp up and higher tonnages of higher-grade ore from Bluebird –
South Junction underground
operations.
The works undertaken will increase the availability and reliability
of the plant as ore production from Bluebird South-Junction ramps
up from 500ktpa to a run rate of 1.2Mtpa in H2 FY25.
- Fender Underground Mine (Cue)
Production was steady throughout the quarter averaging 25kt
per month and outperforming the project's Ore Reserve in terms of
ounces by 16%. Improvement in output was the result of focus on
mine production efficiency and maintaining multiple stopes online.
Fender continues to take advantage of synergies with Big Bell to
ensure production forecast is achieved.
Westgold expects this trend to continue into the coming quarter as
the remainder of the 175 level stopes are extracted. Accelerating
the decline to bring online an additional production level on the
205L was also a priority during the reporting period.
- Big Bell Underground Mine (Cue)
Production from the cave was steady throughout the quarter
averaging 102kt per month. High grade drawpoints in the 685S and
710N levels resulted in an improvement of mine grade from the
previous quarter. Changes to the operating strategy have delivered
an improvement in underground equipment availability and steadied
production.
- Tuckabianna Processing Hub (Cue)
Big Bell underground ore was the primary source of ore feed
to the Tuckabianna processing hub. Throughput increase by 7%
compared to the previous quarter due to a consistent ore blend from
Big Bell. Recovery was 88.7%. This is the highest it has been since
Sept 2022, as a result of maintaining
consistent mill operating parameters.
Construction of the Tuckabianna West in-pit tailing storage
facility is progressing to plan, with earthworks, piping, and power
lines complete.
- Starlight Underground Mine (Fortnum)
Production increased by 16% compared to the previous
quarter due to multiple work areas available in the Starlight and
Nightfall lodes. Nightfall continues delivering strong production
results with stopes on NF 1160 level exceeding planned mine grades.
Development continues to accelerate with the top down and bottom-up
access to the Nightfall area.
Mining scale studies have also commenced at Starlight, with
modelling and evaluation of differing endowment and production
points along the continuum between selective mining and more
comprehensive resource extraction. This work is expected to
progress over the coming quarters. In addition, to support the
outcome of this evaluation, ventilation network expansion and
upgrade studies are currently progressing which will allow for
anticipated increased production levels from the mine.
- Fortnum Processing Hub (Fortnum)
Starlight underground material contributed 90% of the ore
feed to the Fortnum processing hub, with the remaining 10% sourced
from low grade stockpiles. Installation of a pebble crusher in July
has resulted in a 3% increase in the mill throughput rate compared
to the previous quarter.
- Great Fingall Underground Mine (Cue)
Great Fingall is currently in development and achieved a
record month for development advancement in August. The decline is
tracking well against plan.
Mining evaluations continued on the Great Fingall Flats and other
early production opportunities. Installation of LOM mine
infrastructure is progressing to plan, including an upgrade of the
dewatering infrastructure to expediate dewatering of the Great
Fingall Reef.
Preparations are underway for the return of an underground diamond
drilling rig to the mine. The initial target of drilling will be
the upper extensions to the Golden Crown orebody which is
anticipated to present an additional early production opportunity
if assay results are in line with historic performance. The site
team will also take the opportunity to undertake an early test of
remnant portions of the Great Fingall Reef.
Importantly, both of these projects if successfully converted into
mining opportunities, will not detract from the current operational
plan which is focused on accessing the high-value Great Fingall
Reef extensions in the shortest possible time. They will be
assessed and resourced as additional opportunities outside of the
existing plan.
Southern Goldfields
![Figure 6: Southern Goldfields Location Map (CNW Group/Westgold Resources Limited) Figure 6: Southern Goldfields Location Map (CNW Group/Westgold Resources Limited)](https://mma.prnewswire.com/media/2544687/Westgold_Resources_Limited__1_4B_merger_lifts%C2%A0Westgold_into_ASX.jpg)
- Beta Hunt Underground Mine (Kambalda)
Q1 FY25 saw two months of Beta Hunt production included
within Westgold's result, with poor mine productivity in August.
Development advanced during the quarter and was nearing completion
in AZ 19L, where coarse gold from the Father's Day lode was
forecast, however, was not mined during the quarter.
Westgold is currently developing a comprehensive infrastructure
replacement and upgrade plan to support the projected increased
levels of production from the mine, focussing primarily on
electrical, ventilation and water distribution networks.
Mine productivity began to lift during the quarter as Westgold:
- supplemented the site operational team with additional safety
and production management resources;
- implemented surface digital tele-remote bogging, a key element
underpinning improving underground production efficiencies;
- focussed on truck utilisation – this began to improve
post-merger due to synergies of a larger workforce across the
business, this resulted in increased production towards the end of
the quarter, with the full benefits expected to be evidenced
quarter on quarter; and
- commenced upgrading the mine capital infrastructure to support
a ramp up to 2.0Mtpa and further improve mining efficiencies – this
included pumping infrastructure, power reticulation and
ventilation.
Westgold has lifted the intensity of geological
work at Beta Hunt, with two Westgold diamond drill rigs mobilised
to site to complement the four contractor drill rigs currently
operating at the mine. The focus of the Westgold-owned rigs is the
Fletcher zone where a Global Exploration Target of 23-27Mt at
2.1-2.5g/t Au for 1.6-2.1Moz. has been defined (refer ASX
16 September 2024 - Fletcher
Exploration Target Defined at 1.6 - 2.1Moz Au).
Work is currently underway to integrate disparate areas of the Beta
Hunt mine into a single geological structural and resource
framework. This will allow more comprehensive mining evaluations
and planning, to inform more efficient mining outcomes. The process
continues into the coming quarter.
- Lakewood Processing Hub (Kalgoorlie)
Beta Hunt underground material was the primary ore feed for
the 1.2Mtpa Lakewood Mill at
Kalgoorlie. Mill throughput was up 5% against forecasts for the two
months of operation under Westgold's control.
- Two Boys Underground Mine (Higginsville)
Production at the Two Boys underground mine was steady
averaging a monthly production rate of 21kt. Plans have been
finalised to upgrade the primary ventilation system to de-constrain
development activities, with works planned for early Q2.
Initial technical work has focused on extending the life of the Two
Boys underground mine beyond its previously projected end of
calendar year closure date. Pleasingly, mining has already been
pushed beyond the boundaries of the previously defined mine plan,
with production rates now at sustainable levels and drill platform
development underway to allow for extensional drilling.
- Pioneer Open Pit (Higginsville)
The completion of the Pioneer pit post-merger was delayed
due to a slip on the eastern wall which pushed out the completion
date to late August. All open pit contractors were demobilised in
early September.
- Higginsville Processing Hub (Higginsville)
Operations within the Higginsville hub include a 1.6Mtpa
processing plant, the Two Boy underground mine, and the Pioneer
open pit which was closed in September. A tailing storage facility
lift is in progress at Higginsville, to provide additional required
storage capacity from Q2, FY25 onwards.
Throughput was slightly lower than planned due to a mill shutdown
for a ball mill reline which had been budgeted in July, however was
rescheduled into August due to limited availability of third party
maintenance resources. Following depletion of Pioneer ore stock,
ore feed into the mill was supplemented with the introduction of
other lower grade stockpiled ore from September.
Exploration and Resource Development
Westgold continues to invest in exploration and resource
development across the Company's highly prospective tenement
portfolio. Key activities included:
Murchison
RESOURCE DEVELOPMENT ACTIVITIES
Starlight (Fortnum)
Resource drilling continued in the Nightfall Deeps and the
Galaxy lode to expand the Starlight resource and provide further
mining optionality. Work at Starlight this quarter has focussed on
infilling and extending the mine plan for the high-grade Nightfall
area.
Pleasing results continue to be returned both within and
adjacent to the mine plan area, such as:
- 2m at 51.98g/t Au from
71m in NF875RD04,
- 3.69m at 21.17g/t Au from
138m in NF900RD02A and
- 2.59m at 42.2g/t Au from
73m in NF900RD04.
Bluebird – South Junction (Meekatharra)
Westgold has continued to aggressively drill the Bluebird -
South Junction system with
multiple drill rigs active on surface and underground. Assay
results continue to be highly encouraging with updates provided
through ASX releases dated 14 May
2024, 2 July 2024 and
5 September 2024. Please refer to
these releases for the most recent drill results.
The continuation of the South
Junction drilling program culminated in the declaration of a
maiden South Junction Ore Reserve, with the combined Bluebird -
South Junction Ore Reserve now 3.0Mt at 2.8 g/t Au for 277koz
(refer ASX 14 August 2024 - Westgold
Declares Maiden South Junction Ore Reserve).
The significant width of the South
Junction orebody enables a highly productive primary /
secondary transverse stoping method which could significantly
increase production from MGO. The Ore Reserve is underwritten by an
updated Mineral Resource Estimate of 11Mt at 2.8g/t for 950koz
(refer ASX Announcement on16 April 2024 - Bluebird-South Junction
Increases to 6.4Mt at 3.1 g/t Au).
Big Bell
(Cue)
In the Murchison, resource drilling at Big Bell remains ongoing,
and continues to infill zones within the near term portion of the
Longhole Open Stoping mine plan. Results such as:
- 10m at 7.04g/t Au from
224m in 24BBDD0011,
- 23.01m at 3.4g/t Au
from 221m in 24BBDD0015 and
- 8m at 11.15g/t Au from
203m in 24BBDD0017
hint at the grade flexibility selective mining of this large
system will allow.
GREENFIELDS ACTIVITIES
Greenfields activities in the Murchison included 10,686m of aircore (AC) drilling testing
early stage targets in the Nannine (Meekatharra) and Labouchere
(Fortnum) regions during August and September with assay results
now starting to be returned with some early encouragement.
These results will be reported in detail in Q2.
Development of various Reverse Circulation (RC) drilling
programs to test more advanced targets continued during the period
including for Mountain View (Cue), Champion (Meekatharra) and Peak
Hill (Fortnum). Drilling is planned to commence on these targets
towards the end of October 2024.
Southern Goldfields
RESOURCE DEVELOPMENT ACTIVITIES
Beta Hunt (Kambalda)
Drilling of the Fletcher Zone was accelerated during the quarter
with the addition of two Westgold owned drill rigs to complement
the existing single contract drill rig. Better results this
quarter included 4.00m at 22.45g/t
Au from 421m in WF440N1-01AR
(refer ASX – 16 September 2024 - 2024
Mineral Resource Estimate and Ore Reserves) and 1.95m at 144.60g/t Au from 518m in WF440N1-05AE.
Resource development works also continued in other areas of the
mine, with high-grade results such as 3.00m at 31.97g/t Au from 63 in BL1740-27AR
in the Larkin zone and 6.00m at
17.25g/t Au from 483m in
BM1740-19AE in the Mason zone reported.
Higginsville
In the Lake Cowan district work is underway evaluating an open
pit campaign to provide supplemental feed to the Higginsville mill
now that the Pioneer open pit project has been completed. The Lake
Cowan project as contemplated has a short lead time and a very
modest capital outlay, and as such it is anticipated that a
decision on mining can be made in Q2, subject to sufficiently
compelling commercial metrics.
In the medium-term work will commence on the assessment of the
Higginsville Line of Lode underground targets. In close proximately
of the operating Two Boys mine there are several prospective
underground mining targets including the dormant Aquarius mine, the
continuations of the historic Vine mine, the Fairplay group of
mines and the southern extensions to the +1Moz Trident underground
mine.
Westgold will systematically evaluate these options in
order to develop a mine plan that will progressively exploit these
deposits, sharing infrastructure and resourcing to limit commercial
exposure.
GREENFIELDS ACTIVITIES
Greenfields activities in the Southern Goldfields region focused
on development of accelerated exploration plans for both Beta Hunt
and the Higginsville region with planning, target reviews and the
ongoing development of drilling programs for execution during Q2
FY24 which will kick-off with a RC drilling program at the Vines-
Erin Target proximal to the Higginsville mill in November 2024.
In addition, a single diamond hole was drilled at the Barcelona
Prospect, which while did intersect the targeting vein system,
failed to return any significant assay results.
Corporate
At the end of Q1 FY25, Westgold's total cash, bullion and
investments totalled $103M.
Cash, Bullion and Investments
Description
|
Jun 2024
Quarter ($M)
|
Sep 2024
Quarter ($M)
|
Variance
($M)
|
Variance
(%)
|
Cash
|
236
|
55
|
(181)
|
(77 %)
|
Bullion
|
19
|
37
|
18
|
95 %
|
Investments
|
8
|
11
|
3
|
38 %
|
Cash and
Bullion
|
263
|
103
|
(160)
|
(61 %)
|
Debt
Westgold executed the Syndicated Facility Agreement (SFA) with
ING Bank and Societe Generale on 22 November 2023. The SFA
provides Westgold with a A$100
million revolving corporate facility with a three-year term,
which the Company is able to utilise for general corporate
purposes.
At quarter end Westgold remained debt
free with the corporate facility undrawn.
The Company has equipment financing arrangements on acquired
plant and equipment under normal commercial terms with expected
repayments of approximately $41M for
the financial year.
Subsequent to the end of the quarter, on 28 October 2024 Westgold announced it had
executed a commitment letter with its existing lenders to increase
its $100M SFA to $300M through the addition of a new $200M facility. The new $200M facility strengthens the Company's balance
sheet by providing access to a total of $300M of undrawn facilities that may be utilised
for general corporate purposes.
Gold Hedging
Westgold is fully unhedged and completely leveraged to the
gold price.
Strategic Review
The merger with Karora has created the opportunity to review all
assets within our expanded portfolio.
The breadth of opportunities available to the enlarged Westgold
was highlighted by the release of the annual Mineral Resource and
Ore Reserve Statement in September (refer ASX Announcement on16
September 2024 - 2024 Mineral Resource Estimate and Ore Reserves).
Westgold's total Mineral Resource Estimate now stands at 179Mt at
2.29g/t Au for 13.2Moz of gold, with Ore Reserves of 50Mt at
2.05g/t Au for 3.3Moz of gold.
This study will technically and commercially re-evaluate
the Company's operating assets, re-informing strategies for each,
and prioritising the deployment of growth capital to those assets
that can deliver the highest returns.
Share Capital
Westgold closed the quarter with the following capital
structure:
Security Type
|
Number on Issue
|
Fully Paid Ordinary
Shares
|
943,109,690
|
Performance Rights
(Rights)
|
8,709,244
|
Compliance Statements
Exploration Targets, Exploration Results, Mineral Resources
and Ore Reserves
The information in this report that relates to Mineral Resources
is compiled by Westgold technical employees and contractors under
the supervision of GM Technical Services, Mr. Jake Russell B.Sc. (Hons), who is a member of
the Australian Institute of Geoscientists and who has verified,
reviewed, and approved such information. Mr Russell is a full-time
employee to the Company and has sufficient experience which is
relevant to the styles of mineralisation and types of deposit
under consideration and to the activities which he is undertaking
to qualify as a Competent Person as defined in the 2012 Edition of
the Australasian Code for Reporting of Exploration Results, Mineral
Resources and Ore Reserves (the "JORC Code") and as a
Qualified Person as defined in the CIM Guidelines and National
Instrument 43-101 – Standards of Disclosure for Mineral
Projects ("NI 43-101"). Mr. Russell is an employee of
the Company and, accordingly, is not independent for purposes of NI
43-101. Mr Russell consents to and approves the inclusion in this
report of the matters based on his information in the form and
context in which it appears. Mr Russell is eligible to participate
in short- and long-term incentive plans of the Company.
The information in this report that relates to Ore Reserve
Estimates is based on information compiled by Mr. Leigh Devlin, B. Eng MAusIMM, who has verified,
reviewed and approved such information. Mr. Devlin has sufficient
experience which is relevant to the styles of mineralisation and
types of deposit under consideration and to the activities which
they are undertaking to qualify as a Competent Person as defined in
the JORC Code and as a Qualified Person as defined in the CIM
Guidelines and NI 43-101. Mr. Devlin is an employee of the Company
and, accordingly, is not independent for purposes of NI 43-101. Mr.
Devlin consents to and approves the inclusion in this report of the
matters based on his information in the form and context in which
it appears. Mr. Devlin is a full time senior executive of the
Company and is eligible to, and may participate in short-term and
long-term incentive plans of the Company as disclosed in its annual
reports and disclosure documents.
The information in this report that relates to Exploration
Targets and Results is compiled by the Westgold Exploration Team
under the supervision of Chief Growth Officer, Mr. Simon Rigby B.Sc. (Hons), who is a member of the
Australian Institute of Geoscientists and who has verified,
reviewed, and approved such information. Mr Rigby is a
full-time employee of the Company and has sufficient experience
which is relevant to the styles of mineralisation and types of
deposit under consideration and to the activities which he is
undertaking to qualify as a Competent Person as defined in the JORC
Code and as a Qualified Person as defined in the CIM Guidelines and
NI 43-101. Mr. Rigby is an employee of the Company and,
accordingly, is not independent for purposes of NI 43-101. Mr Rigby
consents to and approves the inclusion in this report of the
matters based on his information in the form and context in which
it appears. Mr Rigby is eligible to participate in short-term and
long-term incentive plans of the Company.
Mineral Resources, Ore Reserve Estimates and
Exploration Targets and Results are calculated in accordance with
the JORC Code. The JORC Code is an acceptable foreign code under NI
43-101. Information contained in this report describing mineral
deposits may not be comparable to similar information made public
by companies subject to the reporting and disclosure requirements
of US securities laws, including Item 1300 of Regulation S-K. All
technical and scientific information in this report has been
prepared in accordance with the Canadian regulatory requirements
set out in NI 43-101 and has been reviewed on behalf of the Company
by Qualified Persons, as set forth above.
This report contains references to estimates of
Mineral Resources and Ore Reserves. The estimation of Mineral
Resources is inherently uncertain and involves subjective judgments
about many relevant factors. Mineral Resources that are not Ore
Reserves do not have demonstrated economic viability. The accuracy
of any such estimates is a function of the quantity and quality of
available data, and of the assumptions made and judgments used in
engineering and geological interpretation, which may prove to be
unreliable and depend, to a certain extent, upon the analysis of
drilling results and statistical inferences that may ultimately
prove to be inaccurate. Mineral Resource estimates may require
re-estimation based on, among other things: (i) fluctuations in the
price of gold; (ii) results of drilling; (iii) results of
metallurgical testing, process and other studies; (iv) changes to
proposed mine plans; (v) the evaluation of mine plans subsequent to
the date of any estimates; and (vi) the possible failure to receive
required permits, approvals and licenses.
Technical reports
NI 43-101 compliant technical reports for each of Fortnum,
Meekatharra and Cue operations are available under the Company's
SEDAR+ profile at www.sedarplus.ca and the Company's website at
www.westgold.com.au.
Forward Looking Statements
These materials prepared by Westgold Resources Limited (or the
"Company") include forward looking statements. Often, but
not always, forward looking statements can generally be identified
by the use of forward looking words such as "may", "will",
"expect", "intend", "believe", "forecast", "predict", "plan",
"estimate", "anticipate", "continue", and "guidance", or other
similar words and may include, without limitation, statements
regarding plans, strategies and objectives of management,
anticipated production or construction commencement dates and
expected costs or production outputs.
Forward looking statements inherently involve known and unknown
risks, uncertainties and other factors that may cause the Company's
actual results, performance, and achievements to differ materially
from any future results, performance, or achievements. Relevant
factors may include, but are not limited to, changes in commodity
prices, foreign exchange fluctuations and general economic
conditions, increased costs and demand for production inputs, the
speculative nature of exploration and project development,
including the risks of obtaining necessary licenses and permits and
diminishing quantities or grades of reserves, political and social
risks, changes to the regulatory framework within which the Company
operates or may in the future operate, environmental conditions
including extreme weather conditions, recruitment and retention of
personnel, industrial relations issues and litigation.
Forward looking statements are based on the Company and its
management's good faith assumptions relating to the financial,
market, regulatory and other relevant environments that will exist
and affect the Company's business and operations in the future. The
Company does not give any assurance that the assumptions on which
forward looking statements are based will prove to be correct, or
that the Company's business or operations will not be affected in
any material manner by these or other factors not foreseen or
foreseeable by the Company or management or beyond the Company's
control.
Although the Company attempts and has attempted to identify
factors that would cause actual actions, events or results to
differ materially from those disclosed in forward looking
statements, there may be other factors that could cause actual
results, performance, achievements or events not to be as
anticipated, estimated or intended, and many events are beyond the
reasonable control of the Company. In addition, the Company's
actual results could differ materially from those anticipated in
these forward looking statements as a result of the factors
outlined in the "Risk Factors" section of the Company's continuous
disclosure filings available on SEDAR+ or the ASX, including, in
the company's current annual report, half year report or most
recent management discussion and analysis.
Accordingly, readers are cautioned not to place undue reliance
on forward looking statements. Forward looking statements in these
materials speak only at the date of issue. Subject to any
continuing obligations under applicable law or any relevant stock
exchange listing rules, in providing this information the Company
does not undertake any obligation to publicly update or revise any
of the forward-looking statements or to advise of any change in
events, conditions or circumstances.
Appendix A - Previously Unreported Significant Intersections
Depicted in Release
SOUTHERN GOLDFIELDS
All widths are downhole. Coordinates are collar. Grid is MGA
1994 Zone 51 Significant = >5g/m for resources.
Lode
|
Hole
|
Collar
N
|
Collar
E
|
Collar
RL
|
Intercept
(Downhole)
|
From
(m)
|
Dip
|
Azi
|
Beta
Hunt
|
A
Zone
|
AA18L-28AR
|
6,544,339
|
374,786
|
-287
|
4.00m at 1.65g/t
Au
|
42
|
-31
|
46
|
|
WA300-33AR
|
6,544,269
|
374,709
|
-290
|
6.00m at 2.21g/t
Au
|
155
|
-21
|
49
|
|
|
|
|
|
7.70m at 1.15g/t
Au
|
204
|
|
|
|
WA300-36AR
|
6,544,302
|
374,721
|
-289
|
5.00m at 3.07g/t
Au
|
93
|
-28
|
71
|
|
|
|
|
|
18.00m at 2.11g/t
Au
|
101
|
|
|
|
WA300-46AR
|
6,544,303
|
374,719
|
-288
|
3.70m at 2.01g/t
Au
|
60
|
-20
|
359
|
|
|
|
|
|
17.05m at 1.31g/t
Au
|
164
|
|
|
|
|
|
|
|
1.00m at 7.48g/t
Au
|
188
|
|
|
Fletcher
|
WF440N1-01AR
|
6,543,788
|
375,045
|
-437
|
5.00m at 2.78g/t
Au
|
-
|
-14
|
254
|
|
|
|
|
|
3.80m at 0.96g/t
Au
|
32
|
|
|
|
|
|
|
|
1.00m at 7.00g/t
Au
|
54
|
|
|
|
|
|
|
|
2.00m at 1.52g/t
Au
|
268
|
|
|
|
|
|
|
|
5.00m at 4.14g/t
Au
|
304
|
|
|
|
|
|
|
|
3.00m at 1.94g/t
Au
|
316
|
|
|
|
|
|
|
|
4.65m at 7.71g/t
Au
|
333
|
|
|
|
|
|
|
|
8.00m at 5.26g/t
Au
|
342
|
|
|
|
|
|
|
|
4.00m at 3.24g/t
Au
|
353
|
|
|
|
|
|
|
|
8.12m at 7.52g/t
Au
|
371
|
|
|
|
|
|
|
|
0.55m at 7.92g/t
Au
|
399
|
|
|
|
|
|
|
|
2.33m at 1.23g/t
Au
|
402
|
|
|
|
|
|
|
|
2.45m at 2.65g/t
Au
|
412
|
|
|
|
|
|
|
|
4.00m at 22.45g/t
Au
|
421
|
|
|
|
WF440N1-02AR
|
6,543,788
|
375,045
|
-437
|
4.00m at 1.53g/t
Au
|
52
|
-22
|
255
|
|
|
|
|
|
2.00m at 1.23g/t
Au
|
592
|
|
|
|
WF440N1-03AR
|
6,543,788
|
375,045
|
-437
|
7.00m at 2.67g/t
Au
|
-
|
-29
|
254
|
|
|
|
|
|
4.00m at 3.51g/t
Au
|
433
|
|
|
|
|
|
|
|
1.00m at 5.17g/t
Au
|
442
|
|
|
|
|
|
|
|
7.00m at 3.36g/t
Au
|
497
|
|
|
|
|
|
|
|
15.00m at 3.07g/t
Au
|
507
|
|
|
|
|
|
|
|
2.00m at 1.27g/t
Au
|
528
|
|
|
|
|
|
|
|
5.00m at 2.83g/t
Au
|
667
|
|
|
|
|
|
|
|
3.00m at 1.70g/t
Au
|
676
|
|
|
|
|
|
|
|
1.20m at 3.50g/t
Au
|
684
|
|
|
|
|
|
|
|
4.05m at 1.97g/t
Au
|
688
|
|
|
|
|
|
|
|
1.00m at 5.01g/t
Au
|
740
|
|
|
|
WF440N1-04AE
|
6,543,788
|
375,045
|
-437
|
6.00m at 6.39g/t
Au
|
-
|
-20
|
263
|
|
|
|
|
|
1.00m at 3.49g/t
Au
|
77
|
|
|
|
|
|
|
|
6.00m at 1.89g/t
Au
|
435
|
|
|
|
|
|
|
|
1.00m at 8.21g/t
Au
|
503
|
|
|
|
WF440N1-05AE
|
6,543,788
|
375,045
|
-437
|
7.00m at 2.68g/t
Au
|
-
|
-27
|
262
|
|
|
|
|
|
4.35m at 2.82g/t
Au
|
124
|
|
|
|
|
|
|
|
0.70m at 8.52g/t
Au
|
455
|
|
|
|
|
|
|
|
3.40m at 3.18g/t
Au
|
462
|
|
|
|
|
|
|
|
0.60m at 6.50g/t
Au
|
478
|
|
|
|
|
|
|
|
1.00m at 9.26g/t
Au
|
496
|
|
|
|
|
|
|
|
1.00m at 4.26g/t
Au
|
511
|
|
|
|
|
|
|
|
1.95m at 144.60g/t
Au
|
518
|
|
|
|
|
|
|
|
1.00m at 3.68g/t
Au
|
550
|
|
|
|
|
|
|
|
0.84m at 3.76g/t
Au
|
582
|
|
|
|
|
|
|
|
10.00m at 1.81g/t
Au
|
602
|
|
|
|
|
|
|
|
2.00m at 2.53g/t
Au
|
636
|
|
|
|
|
|
|
|
2.00m at 5.44g/t
Au
|
655
|
|
|
|
|
|
|
|
1.00m at 2.17g/t
Au
|
731
|
|
|
|
|
|
|
|
3.00m at 1.45g/t
Au
|
822
|
|
|
|
|
|
|
|
2.00m at 8.50g/t
Au
|
862
|
|
|
|
|
|
|
|
1.00m at 6.01g/t
Au
|
869
|
|
|
|
|
|
|
|
1.00m at 3.96g/t
Au
|
873
|
|
|
|
WF440N1-06AE
|
6,543,788
|
375,045
|
-437
|
6.00m at 7.86g/t
Au
|
-
|
-32
|
262
|
|
|
|
|
|
0.40m at 17.51g/t
Au
|
152
|
|
|
|
|
|
|
|
5.50m at 15.59g/t
Au
|
165
|
|
|
|
|
|
|
|
7.00m at 1.98g/t
Au
|
255
|
|
|
|
|
|
|
|
4.40m at 2.48g/t
Au
|
456
|
|
|
|
|
|
|
|
5.00m at 6.76g/t
Au
|
468
|
|
|
|
|
|
|
|
6.00m at 4.87g/t
Au
|
477
|
|
|
|
|
|
|
|
1.00m at 2.45g/t
Au
|
497
|
|
|
|
|
|
|
|
1.00m at 6.34g/t
Au
|
503
|
|
|
|
|
|
|
|
3.90m at 2.13g/t
Au
|
587
|
|
|
|
|
|
|
|
11.60m at 1.92g/t
Au
|
594
|
|
|
|
|
|
|
|
2.35m at 2.23g/t
Au
|
625
|
|
|
|
|
|
|
|
1.50m at 1.38g/t
Au
|
630
|
|
|
|
|
|
|
|
6.20m at 1.65g/t
Au
|
636
|
|
|
|
|
|
|
|
1.65m at 2.74g/t
Au
|
647
|
|
|
|
|
|
|
|
0.95m at 2.69g/t
Au
|
656
|
|
|
|
|
|
|
|
4.00m at 1.92g/t
Au
|
660
|
|
|
|
|
|
|
|
5.00m at 2.40g/t
Au
|
682
|
|
|
|
WF440N1-21AE
|
6,543,788
|
375,045
|
-437
|
7.00m at 3.20g/t
Au
|
-
|
-22
|
254
|
|
|
|
|
|
5.00m at 1.62g/t
Au
|
50
|
|
|
|
|
|
|
|
1.00m at 2.06g/t
Au
|
59
|
|
|
|
|
|
|
|
5.00m at 10.95g/t
Au
|
368
|
|
|
|
|
|
|
|
4.00m at 7.17g/t
Au
|
376
|
|
|
|
|
|
|
|
1.00m at 2.18g/t
Au
|
383
|
|
|
|
|
|
|
|
1.00m at 18.69g/t
Au
|
389
|
|
|
|
|
|
|
|
1.75m at 1.61g/t
Au
|
448
|
|
|
|
|
|
|
|
7.00m at 7.97g/t
Au
|
454
|
|
|
|
|
|
|
|
3.00m at 5.16g/t
Au
|
573
|
|
|
|
|
|
|
|
4.90m at 1.73g/t
Au
|
588
|
|
|
|
|
|
|
|
6.00m at 1.24g/t
Au
|
596
|
|
|
|
|
|
|
|
3.00m at 1.51g/t
Au
|
625
|
|
|
|
|
|
|
|
2.20m at 3.81g/t
Au
|
632
|
|
|
Lark
|
BL1740-27AR
|
6,542,829
|
375,337
|
-390
|
5.00m at 2.07g/t
Au
|
53
|
18
|
20
|
|
|
|
|
|
3.00m at 31.97g/t
Au
|
63
|
|
|
|
|
|
|
|
4.90m at 1.55g/t
Au
|
76
|
|
|
Mason
|
BM1740-19AE
|
6,542,826
|
375,330
|
-392
|
1.00m at 2.88g/t
Au
|
1
|
-31
|
231
|
|
|
|
|
|
4.00m at 1.25g/t
Au
|
18
|
|
|
|
|
|
|
|
8.00m at 2.94g/t
Au
|
34
|
|
|
|
|
|
|
|
1.00m at 14.92g/t
Au
|
45
|
|
|
|
|
|
|
|
5.00m at 3.63g/t
Au
|
78
|
|
|
|
|
|
|
|
3.00m at 3.55g/t
Au
|
96
|
|
|
|
|
|
|
|
1.00m at 2.19g/t
Au
|
124
|
|
|
|
|
|
|
|
1.00m at 2.76g/t
Au
|
137
|
|
|
|
|
|
|
|
1.00m at 2.33g/t
Au
|
147
|
|
|
|
|
|
|
|
16.00m at 2.74g/t
Au
|
151
|
|
|
|
|
|
|
|
2.39m at 4.96g/t
Au
|
182
|
|
|
|
|
|
|
|
5.00m at 2.10g/t
Au
|
188
|
|
|
|
|
|
|
|
2.00m at 2.99g/t
Au
|
272
|
|
|
|
|
|
|
|
9.00m at 6.29g/t
Au
|
377
|
|
|
|
|
|
|
|
3.00m at 1.14g/t
Au
|
391
|
|
|
|
|
|
|
|
6.00m at 17.25g/t
Au
|
483
|
|
|
|
|
|
|
|
3.09m at 9.09g/t
Au
|
508
|
|
|
|
|
|
|
|
1.00m at 2.73g/t
Au
|
550
|
|
|
|
|
|
|
|
5.75m at 4.97g/t
Au
|
560
|
|
|
|
|
|
|
|
1.00m at 6.10g/t
Au
|
600
|
|
|
|
BE19-208
|
6,542,512
|
375,722
|
-388
|
7.00m at 4.70g/t
Au
|
46
|
43
|
86
|
|
BE19-312
|
6,542,440
|
375,424
|
-405
|
1.00m at 2.12g/t
Au
|
77
|
-4
|
288
|
|
|
|
|
|
4.00m at 4.14g/t
Au
|
81
|
|
|
|
BE19-313
|
6,542,440
|
375,424
|
-405
|
7.00m at 4.51g/t
Au
|
82
|
-3
|
297
|
|
|
|
|
|
12.00m at 5.80g/t
Au
|
93
|
|
|
|
|
|
|
|
4.00m at 1.70g/t
Au
|
120
|
|
|
|
|
|
|
|
3.00m at 1.35g/t
Au
|
130
|
|
|
|
|
|
|
|
8.00m at 1.32g/t
Au
|
136
|
|
|
|
|
|
|
|
7.00m at 1.82g/t
Au
|
150
|
|
|
|
BE19-314
|
6,542,440
|
375,424
|
-405
|
23.00m at 3.06g/t
Au
|
73
|
-8
|
288
|
|
|
|
|
|
2.00m at 1.23g/t
Au
|
102
|
|
|
|
BE19-315
|
6,542,440
|
375,424
|
-405
|
2.00m at 1.75g/t
Au
|
48
|
0
|
288
|
|
|
|
|
|
2.00m at 1.51g/t
Au
|
69
|
|
|
|
|
|
|
|
5.00m at 5.86g/t
Au
|
79
|
|
|
|
|
|
|
|
2.00m at 5.62g/t
Au
|
95
|
|
|
|
|
|
|
|
6.00m at 2.95g/t
Au
|
108
|
|
|
Western
Flanks
|
WW420-40AR
|
6,543,910
|
375,034
|
-418
|
4.00m at 1.30g/t
Au
|
27
|
-55
|
254
|
|
WW420-43AR
|
6,543,910
|
375,034
|
-417
|
3.95m at 8.57g/t
Au
|
30
|
-57
|
228
|
|
|
|
|
|
4.00m at 1.49g/t
Au
|
135
|
|
|
|
|
|
|
|
5.00m at 1.83g/t
Au
|
143
|
|
|
|
|
|
|
|
1.45m at 4.49g/t
Au
|
162
|
|
|
|
WW420-49AR
|
6,543,910
|
375,034
|
-417
|
10.00m at 1.98g/t
Au
|
77
|
-43
|
202
|
|
|
|
|
|
5.00m at 3.11g/t
Au
|
120
|
-43
|
202
|
|
|
|
|
|
6.00m at 5.29g/t
Au
|
128
|
-43
|
202
|
|
|
|
|
|
2.30m at 2.42g/t
Au
|
142
|
-43
|
202
|
|
|
|
|
|
2.30m at 2.42g/t
Au
|
142
|
-43
|
202
|
|
|
|
|
|
1.00m at 5.78g/t
Au
|
158
|
-43
|
202
|
|
|
|
|
|
5.00m at 3.07g/t
Au
|
175
|
-43
|
202
|
|
WW420-56AR
|
6,543,910
|
375,034
|
-417
|
5.00m at 1.61g/t
Au
|
22
|
-37
|
185
|
|
|
|
|
|
7.35m at 2.07g/t
Au
|
79
|
|
|
|
|
|
|
|
7.00m at 2.45g/t
Au
|
89
|
|
|
|
|
|
|
|
4.00m at 5.76g/t
Au
|
152
|
|
|
|
WW440-26AR
|
6,543,824
|
375,073
|
-418
|
2.00m at 5.28g/t
Au
|
56
|
-37
|
195
|
|
KD719
|
6,544,575
|
374,044
|
291
|
12.00m at 1.66g/t
Au
|
479
|
-70
|
40
|
MURCHISON
All widths are downhole. Coordinates are collar. Grid is MGA
1994 Zone 50 for the Murchison. Significant = >5g/m for
resources.
Lode
|
Hole
|
Collar
N
|
Collar
E
|
Collar
RL
|
Intercept
(Downhole)
|
From
(m)
|
Dip
|
Azi
|
Big
Bell
|
Big
Bell
|
23BBDD0214
|
6,977,662
|
564,655
|
-
214
|
9.8m at 2.73g/t
Au
|
355
|
-41
|
135
|
|
24BBDD0001
|
6,977,792
|
564,763
|
-
279
|
5.7m at 2.1g/t
Au
|
190
|
-23
|
116
|
|
|
|
|
|
9.1m at 1.34g/t
Au
|
200
|
|
|
|
24BBDD0004A
|
6,977,792
|
564,763
|
-
279
|
22.15m at 2.45g/t
Au
|
216
|
-25
|
126
|
|
24BBDD0005A
|
6,977,792
|
564,763
|
-
279
|
4.05m at 6.82g/t
Au
|
205
|
-36
|
109
|
|
|
|
|
|
5.09m at 1.85g/t
Au
|
212
|
|
|
|
24BBDD0006
|
6,977,792
|
564,763
|
-
279
|
2.05m at 2.55g/t
Au
|
194
|
-23
|
120
|
|
|
|
|
|
17.45m at 3.93g/t
Au
|
199
|
|
|
|
24BBDD0007
|
6,977,792
|
564,763
|
-
279
|
22.79m at 2.25g/t
Au
|
209
|
-26
|
122
|
|
24BBDD0008
|
6,977,792
|
564,763
|
-
279
|
6.95m at 1.22g/t
Au
|
245
|
-30
|
123
|
|
|
|
|
|
2.84m at 3.55g/t
Au
|
|
|
|
|
24BBDD0009
|
6,977,792
|
564,763
|
-
279
|
NSI
|
|
-13
|
114
|
|
24BBDD0010
|
6,977,792
|
564,763
|
-
279
|
3.2m at 5.72g/t
Au
|
210
|
-28
|
115
|
|
|
|
|
|
9m at 3.24g/t
Au
|
216
|
|
|
|
24BBDD0011
|
6,977,792
|
564,763
|
-
279
|
10m at 7.04g/t
Au
|
224
|
-33
|
118
|
|
|
|
|
|
8.9m at 2.05g/t
Au
|
236
|
|
|
|
24BBDD0012
|
6,977,792
|
564,763
|
-
279
|
8.15m at 4.94g/t
Au
|
212
|
-33
|
113
|
|
|
|
|
|
7.36m at 2.14g/t
Au
|
226
|
|
|
|
24BBDD0013
|
6,977,792
|
564,763
|
-
279
|
2.97m at 5.93g/t
Au
|
181
|
-21
|
110
|
|
|
|
|
|
2.18m at 3.1g/t
Au
|
192
|
|
|
|
24BBDD0015
|
6,977,792
|
564,763
|
-
279
|
23.01m at 3.4g/t
Au
|
221
|
-36
|
108
|
|
24BBDD0017
|
6,977,792
|
564,763
|
-
279
|
8m at 11.15g/t
Au
|
203
|
-32
|
103
|
|
|
|
|
|
20.9m at 1.57g/t
Au
|
211
|
|
|
|
24BBDD0033A
|
6,977,661
|
564,655
|
-
212
|
12.0m at 1.47g/t
Au
|
207
|
8
|
147
|
|
24BBDD0034
|
6,977,661
|
564,655
|
-
212
|
9.03m at 1.40g/t
Au
|
212
|
7
|
149
|
Fender
|
Fender
|
24FNDD0027
|
562,825
|
6,975,374
|
266
|
NSI
|
|
-34
|
56
|
|
24FNDD0029
|
562,843
|
6,975,385
|
266
|
2.76m at 3.81g/t
Au
|
196
|
-28
|
59
|
|
24FNDD0030
|
562,843
|
6,975,385
|
266
|
NSI
|
|
-44
|
61
|
|
24FNDD0031
|
562,843
|
6,975,385
|
266
|
9.85m at 4.83g/t
Au
|
139
|
-19
|
64
|
|
24FNDD0032
|
562,843
|
6,975,385
|
266
|
NSI
|
|
-40
|
67
|
|
24FNDD0033
|
562,843
|
6,975,385
|
266
|
2.11m at 7.36g/t
Au
|
145
|
-32
|
71
|
|
24FNDD0034
|
562,843
|
6,975,385
|
266
|
NSI
|
|
-50
|
74
|
|
24FNDD0035
|
562,843
|
6,975,385
|
266
|
2.15m at 7.11g/t
Au
|
109
|
-24
|
80
|
|
24FNDD0036
|
562,826
|
6,975,375
|
266
|
NSI
|
|
-34
|
79
|
|
24FNDD0037
|
562,825
|
6,975,375
|
266
|
5.57m at 3.6g/t
Au
|
187
|
-51
|
82
|
|
24FNDD0038
|
562,825
|
6,975,375
|
266
|
1.56m at 7.38g/t
Au
|
109
|
-43
|
96
|
|
24FNDD0038
|
562,825
|
6,975,375
|
266
|
1.97m at 3.07g/t
Au
|
135
|
-43
|
96
|
|
24FNDD0039A
|
562,825
|
6,975,374
|
266
|
NSI
|
|
-28
|
108
|
|
24FNDD0040
|
562,824
|
6,975,374
|
266
|
2.5m at 2.33g/t
Au
|
113
|
-38
|
117
|
|
24FNDD0040
|
562,824
|
6,975,374
|
266
|
1.94m at 2.05g/t
Au
|
118
|
-38
|
117
|
Great
Fingall
|
Great
Fingall
|
23GFPR001
|
6,962,177
|
584,853
|
274
|
NSI
|
|
-8
|
128
|
|
24GFDD039
|
6,962,021
|
584,849
|
344
|
NSI
|
|
18
|
17
|
|
24GFDD042
|
6,962,021
|
584,849
|
344
|
NSI
|
|
15
|
34
|
|
24SHDD010
|
6,961,842
|
584,402
|
167
|
NSI
|
|
2
|
13
|
|
24SHDD011
|
6,961,842
|
584,402
|
166
|
3.2m at 6.34g/t
Au
|
130
|
-1
|
13
|
|
24SHDD012
|
6,961,841
|
584,396
|
167
|
5.09m at 3.32g/t
Au
|
11
|
5
|
225
|
|
24SHDD013
|
6,961,840
|
584,396
|
167
|
4.47m at 1.83g/t
Au
|
14
|
1
|
225
|
|
|
|
|
|
0.55m at 19.00g/t
Au
|
247
|
|
|
|
24SHDD014
|
6,961,808
|
584,379
|
121
|
NSI
|
|
-8
|
190
|
|
24SHDD015
|
6,961,807
|
584,379
|
120
|
2.16m at 2.43g/t
Au
|
222
|
-7
|
182
|
|
24SHDD016
|
6,961,812
|
584,384
|
121
|
NSI
|
|
3
|
11
|
|
24SHDD017
|
6,961,812
|
584,383
|
121
|
NSI
|
|
2
|
359
|
|
24SHDD018
|
6,961,831
|
584,409
|
165
|
NSI
|
|
-75
|
75
|
|
24SHDD019
|
6,961,831
|
584,408
|
165
|
NSI
|
|
-75
|
75
|
|
24SHDD020
|
6,961,957
|
584,731
|
323
|
NSI
|
|
-59
|
6
|
|
24SHDD021
|
6,961,957
|
584,731
|
323
|
NSI
|
|
-58
|
7
|
|
24SHDD022
|
6,961,701
|
584,238
|
142
|
0.92m at 7.39g/t
Au
|
15
|
8
|
171
|
|
24SHDD023
|
6,961,702
|
584,237
|
141
|
NSI
|
|
-28
|
169
|
|
24SHDD024
|
6,961,702
|
584,237
|
140
|
NSI
|
|
-50
|
166
|
|
24SHDD025
|
6,961,890
|
584,545
|
186
|
NSI
|
|
-70
|
331
|
|
24SHDD027
|
6,961,919
|
584,671
|
207
|
NSI
|
|
-85
|
205
|
|
24SHDD028
|
6,962,006
|
584,653
|
210
|
NSI
|
|
-84
|
272
|
Mountain
View
|
24GFDD101
|
6,962,285
|
584,702
|
313
|
2.35m at 2.43g/t
Au
|
73
|
-8
|
234
|
|
24GFDD102
|
6,962,281
|
584,699
|
313
|
NSI
|
|
7
|
249
|
|
24GFDD103
|
6,962,281
|
584,699
|
312
|
NSI
|
|
-7
|
255
|
|
24GFDD104
|
6,962,281
|
584,699
|
312
|
4.86m at 1.04g/t
Au
|
31
|
4
|
264
|
Starlight
|
Nightfall
|
NF1120RD01
|
7,198,947
|
636,630
|
119
|
2.55m at 12.23g/t
Au
|
182
|
11
|
354
|
|
NF1120RD02
|
7,198,947
|
636,630
|
119
|
NSI
|
-
|
9
|
4
|
|
NF1120RD03
|
7,198,947
|
636,629
|
118
|
2m at 12.15g/t
Au
|
198
|
-3
|
352
|
|
NF1120RD05
|
7,198,947
|
636,630
|
118
|
2.14m at 2.93g/t
Au
|
170
|
-11
|
346
|
|
|
|
|
|
8m at 4.77g/t
Au
|
180
|
|
|
|
|
|
|
|
3m at 8.84g/t
Au
|
191
|
|
|
|
NF1120RD06
|
7,198,947
|
636,630
|
118
|
NSI
|
-
|
-9
|
355
|
|
NF1120RD07
|
7,198,947
|
636,630
|
118
|
2.48m at 2.13g/t
Au
|
275
|
-9
|
2
|
|
NF1120RD08
|
7,198,947
|
636,630
|
118
|
2.66m at 17.98g/t
Au
|
142
|
1
|
344
|
|
|
|
|
|
11m at 5.45g/t
Au
|
147
|
|
|
|
NF1120RD09
|
7,198,947
|
636,630
|
118
|
NSI
|
|
0
|
6
|
|
NF1120RD10
|
7,199,060
|
636,525
|
274
|
6.9m at 5.14g/t
Au
|
138
|
-15
|
332
|
|
|
|
|
|
4.8m at 4.3g/t
Au
|
147
|
|
|
|
|
|
|
|
3.06m at 2.13g/t
Au
|
256
|
|
|
|
NF1130RD48
|
7,198,884
|
636,383
|
140
|
NSI
|
-
|
17
|
48
|
|
NF1130RD49
|
7,198,884
|
636,383
|
140
|
NSI
|
-
|
11
|
48
|
|
NF1130RD50
|
7,198,884
|
636,383
|
140
|
NSI
|
-
|
16
|
36
|
|
NF1130RD51
|
7,198,884
|
636,383
|
140
|
NSI
|
-
|
10
|
35
|
|
NF1130RD52A
|
7,198,884
|
636,383
|
140
|
NSI
|
-
|
10
|
27
|
|
NF1130RD53
|
7,198,855
|
636,383
|
138
|
NSI
|
-
|
-40
|
101
|
|
NF1130RD53A
|
7,198,855
|
636,383
|
138
|
NSI
|
-
|
-45
|
94
|
|
NF1130RD54
|
7,198,855
|
636,383
|
138
|
NSI
|
-
|
-47
|
101
|
|
NF1130RD55
|
7,198,884
|
636,383
|
139
|
NSI
|
-
|
-20
|
41
|
|
NF1130RD56
|
7,198,884
|
636,383
|
139
|
NSI
|
-
|
-38
|
45
|
|
NF1130RD57
|
7,198,884
|
636,383
|
139
|
4.25m at 4.53g/t
Au
|
104
|
-33
|
28
|
|
NF1130RD58
|
7,198,884
|
636,383
|
139
|
4.75m at 1.72g/t
Au
|
102
|
-47
|
32
|
|
NF1130RD59
|
7,198,884
|
636,383
|
139
|
NSI
|
-
|
-59
|
39
|
|
NF1130RD60
|
7,198,884
|
636,383
|
139
|
5.83m at 3.63g/t
Au
|
116
|
-52
|
19
|
|
NF875RD02
|
7,198,859
|
636,426
|
-
107
|
NSI
|
-
|
8
|
24
|
|
NF875RD04
|
7,198,857
|
636,426
|
-
107
|
5.58m at 1.36g/t
Au
|
34
|
11
|
48
|
|
|
|
|
|
3.33m at 5.5g/t
Au
|
53
|
|
|
|
|
|
|
|
2.63m at 2.73g/t
Au
|
61
|
|
|
|
|
|
|
|
2m at 51.98g/t
Au
|
71
|
|
|
|
|
|
|
|
2.12m at 3.73g/t
Au
|
86
|
|
|
|
|
|
|
|
4.3m at 6.26g/t
Au
|
104
|
|
|
|
NF875RD05
|
7,198,857
|
636,427
|
-
107
|
2.98m at 2.28g/t
Au
|
33
|
12
|
65
|
|
NF875RD06
|
7,198,856
|
636,426
|
-
108
|
7.14m at 2.61g/t
Au
|
32
|
10
|
81
|
|
|
|
|
|
4.02m at 1.77g/t
Au
|
108
|
|
|
|
NF875RD07
|
7,198,856
|
636,426
|
-
108
|
NSI
|
-
|
9
|
97
|
|
NF875RD08
|
7,198,856
|
636,427
|
-
108
|
3.39m at 1.75g/t
Au
|
56
|
7
|
110
|
|
NF875RD09
|
7,198,859
|
636,426
|
-
107
|
NSI
|
-
|
-4
|
11
|
|
NF875RD10
|
7,198,859
|
636,426
|
-
107
|
2.55m at 4.55g/t
Au
|
79
|
-5
|
19
|
|
|
|
|
|
5m at 2.46g/t
Au
|
109
|
|
|
|
NF875RD11
|
7,198,859
|
636,426
|
-
107
|
10.1m at 1.84g/t
Au
|
101
|
-6
|
29
|
|
|
|
|
|
3.07m at 4.5g/t
Au
|
137
|
|
|
|
NF875RD12
|
7,198,859
|
636,426
|
-
107
|
NSI
|
-
|
-7
|
41
|
|
NF875RD13
|
7,198,857
|
636,426
|
-
108
|
NSI
|
-
|
-7
|
57
|
|
NF875RD14
|
7,198,857
|
636,426
|
-
108
|
2.57m at 5.27g/t
Au
|
29
|
-8
|
76
|
|
|
|
|
|
3.67m at 1.62g/t
Au
|
74
|
|
|
|
|
|
|
|
7.74m at 7.97g/t
Au
|
90
|
|
|
|
NF875RD15
|
7,198,857
|
636,426
|
-
108
|
4.22m at 2.03g/t
Au
|
31
|
-7
|
92
|
|
|
|
|
|
4m at 13.29g/t
Au
|
41
|
|
|
|
|
|
|
|
2.4m at 3.86g/t
Au
|
75
|
|
|
|
|
|
|
|
5.5m at 4.76g/t
Au
|
98
|
|
|
|
NF875RD16
|
7,198,857
|
636,426
|
-
108
|
3.17m at 2.98g/t
Au
|
37
|
-7
|
104
|
|
|
|
|
|
4.09m at 2.44g/t
Au
|
79
|
|
|
|
NF875RD17
|
7,198,857
|
636,426
|
-
108
|
3m at 2.35g/t
Au
|
35
|
-6
|
114
|
|
|
|
|
|
4m at 5.25g/t
Au
|
86
|
|
|
|
NF900RD01
|
7,198,859
|
636,438
|
-
65
|
4m at 3.59g/t
Au
|
83
|
6
|
11
|
|
|
|
|
|
2.5m at 6.95g/t
Au
|
95
|
|
|
|
|
|
|
|
3m at 3.08g/t
Au
|
103
|
|
|
|
|
|
|
|
2m at 7.71g/t
Au
|
114
|
|
|
|
|
|
|
|
2m at 2.94g/t
Au
|
145
|
|
|
|
|
|
|
|
6.8m at 2.89g/t
Au
|
221
|
|
|
|
NF900RD02
|
7,198,859
|
636,438
|
-
65
|
6.15m at 1.77g/t
Au
|
89
|
7
|
15
|
|
|
|
|
|
15.3m at 2.64g/t
Au
|
116
|
|
|
|
NF900RD02A
|
7,198,859
|
636,438
|
-
65
|
3.88m at 6.36g/t
Au
|
91
|
7
|
15
|
|
|
|
|
|
3.46m at 1.98g/t
Au
|
115
|
|
|
|
|
|
|
|
5m at 2.65g/t
Au
|
121
|
|
|
|
|
|
|
|
3.69m at 21.17g/t
Au
|
138
|
|
|
|
|
|
|
|
5.31m at 3.02g/t
Au
|
194
|
|
|
|
|
|
|
|
4m at 2.57g/t
Au
|
203
|
|
|
|
|
|
|
|
2.7m at 14.71g/t
Au
|
210
|
|
|
|
|
|
|
|
3.14m at 2.68g/t
Au
|
288
|
|
|
|
NF900RD03
|
7,198,859
|
636,438
|
-
65
|
14.16m at 2.68g/t
Au
|
96
|
7
|
19
|
|
|
|
|
|
6.45m at 6.17g/t
Au
|
171
|
|
|
|
|
|
|
|
2.7m at 2.94g/t
Au
|
184
|
|
|
|
|
|
|
|
4.3m at 4.34g/t
Au
|
221
|
|
|
|
|
|
|
|
2.3m at 13.15g/t
Au
|
228
|
|
|
|
|
|
|
|
3.56m at 5.74g/t
Au
|
242
|
|
|
|
|
|
|
|
2.63m at 3.75g/t
Au
|
268
|
|
|
|
NF900RD04
|
7,198,858
|
636,439
|
-
65
|
2.59m at 42.2g/t
Au
|
73
|
9
|
28
|
|
|
|
|
|
2.9m at 2.06g/t
Au
|
113
|
|
|
|
|
|
|
|
7.37m at 8.38g/t
Au
|
124
|
|
|
|
NF900RD05
|
7,198,858
|
636,439
|
-
65
|
12.6m at 2.35g/t
Au
|
85
|
11
|
41
|
|
|
|
|
|
3.59m at 6.32g/t
Au
|
111
|
|
|
|
NF900RD06
|
7,198,858
|
636,439
|
-
65
|
2.9m at 9.48g/t
Au
|
82
|
12
|
57
|
|
NF900RD08
|
7,198,856
|
636,440
|
-
65
|
5m at 1.69g/t
Au
|
34
|
10
|
91
|
|
NF900RD09
|
7,198,855
|
636,440
|
-
65
|
NSI
|
-
|
9
|
108
|
|
NF900RD10
|
7,198,859
|
636,438
|
-
66
|
5.5m at 4.03g/t
Au
|
89
|
-6
|
10
|
|
|
|
|
|
4.58m at 1.46g/t
Au
|
98
|
|
|
|
|
|
|
|
6m at 2.31g/t
Au
|
113
|
|
|
|
|
|
|
|
4m at 3.95g/t
Au
|
274
|
|
|
|
ST900RD21
|
7,198,638
|
636,473
|
-
147
|
NSI
|
-
|
13
|
38
|
|
ST900RD24
|
7,198,730
|
636,473
|
-
85
|
NSI
|
-
|
-29
|
41
|
|
ST900RD25
|
7,198,729
|
636,474
|
-
85
|
NSI
|
-
|
-25
|
58
|
|
ST900RD27
|
7,198,729
|
636,474
|
-
85
|
NSI
|
-
|
-16
|
78
|
|
ST900RD29
|
7,198,729
|
636,474
|
-
85
|
NSI
|
-
|
-13
|
47
|
|
ST900RD30
|
7,198,729
|
636,474
|
-
84
|
NSI
|
-
|
-4
|
53
|
|
ST900RD31
|
7,198,729
|
636,474
|
-
83
|
NSI
|
-
|
6
|
67
|
|
ST900RD32
|
7,198,729
|
636,474
|
-
83
|
NSI
|
-
|
24
|
47
|
|
ST900RD35
|
7,198,728
|
636,474
|
-
84
|
NSI
|
-
|
6
|
84
|
Trev's
|
TR1230RD19
|
7,198,851
|
636,649
|
232
|
NSI
|
-
|
6
|
84
|
Twilight
|
TW1270RD09
|
7,199,009
|
636,524
|
275
|
NSI
|
-
|
-3
|
98
|
|
TW1270RD10
|
7,199,009
|
636,524
|
275
|
NSI
|
-
|
-2
|
92
|
|
TW1270RD11
|
7,199,009
|
636,524
|
275
|
2.02m at 3.42g/t
Au
|
212
|
-8
|
93
|
|
|
|
|
|
2.15m at 3.75g/t
Au
|
224
|
|
|
|
TW1270RD12
|
7,199,009
|
636,524
|
274
|
2.58m at 4.65g/t
Au
|
19
|
-13
|
93
|
|
|
|
|
|
2.9m at 3.23g/t
Au
|
32
|
|
|
|
|
|
|
|
8m at 1.7g/t
Au
|
207
|
|
|
|
TW1270RD21
|
7,199,008
|
636,523
|
274
|
NSI
|
-
|
-14
|
106
|
|
TW1270RD23
|
7,199,007
|
636,523
|
274
|
NSI
|
-
|
-24
|
105
|
|
TW1270RD25
|
7,199,008
|
636,523
|
274
|
11m at 2.47g/t
Au
|
230
|
-13
|
102
|
|
TW1270RD26
|
7,199,008
|
636,523
|
274
|
9.3m at 1.51g/t
Au
|
229
|
-25
|
100
|
|
TW1270RD27
|
7,199,065
|
636,664
|
276
|
NSI
|
-
|
-25
|
59
|
|
TW1270RD29
|
7,199,063
|
636,664
|
277
|
11.73m at 4.42g/t
Au
|
62
|
-35
|
104
|
|
TW1270RD30
|
7,199,063
|
636,664
|
277
|
NSI
|
-
|
15
|
104
|
|
TW1270RD31
|
7,199,063
|
636,664
|
277
|
NSI
|
-
|
-65
|
114
|
|
TW1270RD32
|
7,199,063
|
636,664
|
277
|
NSI
|
-
|
-45
|
59
|
|
TW1270RD33
|
7,199,063
|
636,664
|
277
|
NSI
|
-
|
0
|
59
|
|
TW1270RD35
|
7,199,063
|
636,664
|
277
|
NSI
|
-
|
-15
|
74
|
|
TW1270RD37
|
7,199,063
|
636,664
|
277
|
3.14m at 1.82g/t
Au
|
59
|
-25
|
89
|
|
TW1270RD38
|
7,199,063
|
636,664
|
277
|
NSI
|
-
|
0
|
89
|
|
TW1270RD39
|
7,199,063
|
636,664
|
277
|
NSI
|
-
|
-15
|
104
|
|
TW1270RD40
|
7,199,063
|
636,664
|
277
|
3m at 2.67g/t
Au
|
74
|
-45
|
119
|
|
|
|
|
|
2m at 5.88g/t
Au
|
81
|
|
|
|
TW1270RD41
|
7,199,063
|
636,664
|
277
|
7.8m at 3.31g/t
Au
|
70
|
-25
|
119
|
|
TW1270RD42
|
7,199,063
|
636,664
|
277
|
NSI
|
-
|
0
|
119
|
|
TW1270RD43
|
7,199,063
|
636,664
|
277
|
NSI
|
-
|
-55
|
124
|
|
TW1270RD44
|
7,199,063
|
636,664
|
277
|
2m at 3.54g/t
Au
|
74
|
-55
|
104
|
Waterbore
|
WB1270RD22
|
7,199,089
|
636,587
|
276
|
7m at 1.82g/t
Au
|
20
|
-19
|
131
|
|
|
|
|
|
2.07m at 8.64g/t
Au
|
83
|
|
|
|
WB1270RD23
|
7,199,089
|
636,587
|
276
|
NSI
|
-
|
-36
|
93
|
|
WB1270RD24
|
7,199,094
|
636,528
|
275
|
2m at 3.7g/t
Au
|
107
|
-38
|
100
|
|
|
|
|
|
2m at 3.7g/t
Au
|
107
|
-38
|
100
|
|
WB1270RD25
|
7,199,094
|
636,528
|
275
|
2m at 3.6g/t
Au
|
69
|
-29
|
109
|
|
WB1270RD26
|
7,199,094
|
636,528
|
275
|
NSI
|
-
|
-31
|
94
|
|
|
|
|
|
3m at 1.96g/t
Au
|
61
|
-31
|
78
|
|
WB1270RD28
|
7,199,094
|
636,528
|
275
|
4.59m at 2.73g/t
Au
|
49
|
-30
|
61
|
|
|
|
|
|
2.49m at 3.2g/t
Au
|
65
|
|
|
|
WB1270RD29
|
7,199,094
|
636,528
|
277
|
3m at 2.12g/t
Au
|
114
|
20
|
69
|
|
WB1270RD30
|
7,199,095
|
636,528
|
276
|
NSI
|
-
|
-7
|
54
|
|
WB1270RD31
|
7,199,094
|
636,528
|
277
|
NSI
|
-
|
11
|
85
|
|
WB1270RD32
|
7,199,060
|
636,525
|
274
|
3.4m at 3.69g/t
Au
|
63
|
-39
|
110
|
|
|
|
|
|
10.1m at 3.04g/t
Au
|
103
|
|
|
|
WB1270RD33
|
7,199,060
|
636,525
|
274
|
2m at 6.75g/t
Au
|
32
|
-19
|
96
|
|
WB1270RD34
|
7,199,060
|
636,525
|
274
|
4m at 11.12g/t
Au
|
75
|
-40
|
122
|
|
|
|
|
|
8.15m at 1.46g/t
Au
|
102
|
|
|
|
WB1270RD35
|
7,199,060
|
636,525
|
274
|
NSI
|
-
|
-24
|
120
|
|
WB1270RD36
|
7,199,060
|
636,525
|
274
|
NSI
|
-
|
-47
|
98
|
|
WB1270RD37
|
7,199,060
|
636,525
|
274
|
4m at 2.23g/t
Au
|
52
|
-28
|
96
|
Bluebird
|
Bluebird
|
24BLDD023
|
7,043,825
|
641,516
|
168
|
4.48 m at 4.02g/t
Au
|
45
|
51
|
83
|
|
24BLDD024
|
7,043,824
|
641,516
|
168
|
2.80 m at 1.95g/t
Au
|
29
|
28
|
101
|
|
24BLDD025
|
7,043,825
|
641,516
|
169
|
2.20 m at 7.04g/t
Au
|
46
|
54
|
124
|
|
24BLDD026
|
7,043,824
|
641,515
|
169
|
6.40 m at 1.70g/t
Au
|
19
|
67
|
126
|
|
|
|
|
|
5.40 m at 2.06g/t
Au
|
30
|
|
|
|
|
|
|
|
6.42 m at 2.16g/t
Au
|
60
|
|
|
|
24BLDD028
|
7,043,825
|
641,515
|
170
|
5.66 m at 6.24g/t
Au
|
38
|
45
|
120
|
|
24BLDD028A
|
7,043,808
|
641,502
|
171
|
NSI
|
-
|
45
|
123
|
|
24BLDD029
|
7,043,825
|
641,515
|
170
|
3.42 m at 1.47g/t
Au
|
17
|
62
|
121
|
|
|
|
|
|
8.75 m at 1.32g/t
Au
|
56
|
|
|
|
24BLDD029A
|
7,043,808
|
641,503
|
170
|
NSI
|
-
|
63
|
124
|
|
24BLDD030A
|
7,043,807
|
641,503
|
169
|
2.63 m at 2.68g/t
Au
|
66
|
51
|
147
|
|
|
|
|
|
8.52 m at 2.24g/t
Au
|
75
|
|
|
|
24BLDD052
|
7,043,816
|
641,510
|
166
|
NSI
|
-
|
-29
|
76
|
|
24BLDD053
|
7,043,815
|
641,510
|
166
|
4.99 m at 3.84g/t
Au
|
105
|
-32
|
89
|
|
|
|
|
|
2.78 m at 2.13g/t
Au
|
126
|
|
|
|
24BLDD067
|
7,043,642
|
641,494
|
101
|
5.00 m at 2.01g/t
Au
|
93
|
-26
|
132
|
|
|
|
|
|
19.00 m at 2.40g/t
Au
|
101
|
|
|
|
|
|
|
|
9.00 m at 1.31g/t
Au
|
187
|
|
|
|
|
|
|
|
8.00 m at 0.95g/t
Au
|
268
|
|
|
|
|
|
|
|
6.00 m at 0.89g/t
Au
|
281
|
|
|
|
24BLDD068
|
7,043,626
|
641,464
|
101
|
7.42 m at 3.88g/t
Au
|
142
|
-46
|
121
|
|
|
|
|
|
6.89 m at 1.05g/t
Au
|
161
|
|
|
|
|
|
|
|
23.00 m at 3.72g/t
Au
|
170
|
|
|
|
|
|
|
|
25.47 m at 1.28g/t
Au
|
217
|
|
|
|
|
|
|
|
5.21 m at 1.06g/t
Au
|
285
|
|
|
|
|
|
|
|
5.00 m at 1.27g/t
Au
|
361
|
|
|
|
24BLDD072
|
7,043,645
|
641,495
|
101
|
17.00 m at 7.43g/t
Au
|
108
|
-37
|
67
|
|
|
|
|
|
2.00 m at 2.71g/t
Au
|
133
|
|
|
|
24BLDD073
|
7,043,645
|
641,496
|
101
|
NSI
|
-
|
-45
|
70
|
|
24BLDD073A
|
7,043,645
|
641,495
|
101
|
12.97 m at 0.71g/t
Au
|
2
|
-45
|
70
|
|
|
|
|
|
23.24 m at 4.41g/t
Au
|
120
|
|
|
|
|
|
|
|
2.19 m at 3.27g/t
Au
|
146
|
|
|
|
24BLDD077
|
7,043,645
|
641,495
|
101
|
5.26 m at 3.17g/t
Au
|
84
|
-40
|
92
|
|
|
|
|
|
27.40 m at 3.90g/t
Au
|
92
|
|
|
|
24BLDD081
|
7,043,644
|
641,495
|
101
|
10.00 m at 3.36g/t
Au
|
78
|
-15
|
122
|
|
|
|
|
|
5.00 m at 3.51g/t
Au
|
98
|
|
|
|
24BLDD082
|
7,043,644
|
641,495
|
101
|
4.00 m at 2.70g/t
Au
|
9
|
-41
|
120
|
|
|
|
|
|
31.14 m at 1.88g/t
Au
|
96
|
|
|
|
|
|
|
|
4.14 m at 2.40g/t
Au
|
131
|
|
|
|
|
|
|
|
4.00 m at 2.41g/t
Au
|
138
|
|
|
|
24BLDD084
|
7,043,642
|
641,494
|
101
|
2.00 m at 3.65g/t
Au
|
9
|
-36
|
137
|
|
|
|
|
|
7.24 m at 2.28g/t
Au
|
100
|
|
|
|
|
|
|
|
25.61 m at 1.50g/t
Au
|
110
|
|
|
|
|
|
|
|
12.80 m at 4.14g/t
Au
|
138
|
|
|
|
24BLDD085
|
7,043,642
|
641,494
|
101
|
7.28 m at 0.78g/t
Au
|
2
|
-22
|
148
|
|
|
|
|
|
10.00 m at 3.39g/t
Au
|
105
|
|
|
|
|
|
|
|
18.00 m at 2.26g/t
Au
|
119
|
|
|
|
|
|
|
|
4.00 m at 1.96g/t
Au
|
207
|
|
|
|
|
|
|
|
7.89 m at 3.37g/t
Au
|
324
|
|
|
|
24BLDD092
|
7,043,757
|
641,489
|
95
|
NSI
|
-
|
-21
|
53
|
|
24BLDD092A
|
7,043,757
|
641,489
|
95
|
7.52 m at 5.87g/t
Au
|
185
|
-21
|
53
|
|
24BLDD093
|
7,043,757
|
641,489
|
95
|
4.50 m at 1.24g/t
Au
|
175
|
-13
|
51
|
|
|
|
|
|
6.86 m at 5.41g/t
Au
|
191
|
|
|
|
24BLDD094
|
7,043,756
|
641,489
|
95
|
2.06 m at 4.30g/t
Au
|
201
|
-7
|
50
|
|
24BLDD101
|
7,043,756
|
641,489
|
95
|
7.31 m at 4.87g/t
Au
|
135
|
-29
|
82
|
|
24BLDD102
|
7,043,756
|
641,489
|
95
|
5.96 m at 3.92g/t
Au
|
157
|
-37
|
78
|
|
24BLDD102
|
|
|
|
3.50 m at 17.04g/t
Au
|
166
|
|
|
|
24BLDD103
|
7,043,756
|
641,489
|
95
|
3.64 m at 5.56g/t
Au
|
124
|
-18
|
74
|
|
|
|
|
|
4.67 m at 1.87g/t
Au
|
130
|
|
|
|
24BLDD104
|
7,043,756
|
641,489
|
95
|
7.69 m at 6.34g/t
Au
|
139
|
-27
|
76
|
|
24BLDD106
|
7,043,756
|
641,489
|
95
|
3.50 m at 2.62g/t
Au
|
176
|
-38
|
72
|
|
24BLDD107
|
7,043,756
|
641,489
|
95
|
2.36 m at 14.19g/t
Au
|
168
|
-34
|
70
|
|
24BLDD108
|
7,043,756
|
641,489
|
95
|
4.27 m at 5.18g/t
Au
|
196
|
-34
|
57
|
|
24BLDD109
|
7,043,756
|
641,489
|
95
|
3.37 m at 5.51g/t
Au
|
190
|
-37
|
64
|
|
24BLDD116
|
7,043,625
|
641,464
|
103
|
2.41 m at 6.47g/t
Au
|
95
|
-1
|
119
|
|
|
|
|
|
3.39 m at 1.89g/t
Au
|
108
|
|
|
|
24BLDD117
|
7,043,625
|
641,464
|
103
|
2.50 m at 2.99g/t
Au
|
104
|
0
|
127
|
|
|
|
|
|
5.00 m at 3.03g/t
Au
|
111
|
|
|
|
|
|
|
|
6.96 m at 3.19g/t
Au
|
252
|
|
|
|
|
|
|
|
10.00 m at 10.40g/t
Au
|
265
|
|
|
|
24BLDD118
|
7,043,622
|
641,462
|
103
|
2.99 m at 3.40g/t
Au
|
119
|
1
|
137
|
|
|
|
|
|
12.00 m at 2.28g/t
Au
|
125
|
|
|
|
24BLDD119
|
7,043,622
|
641,461
|
103
|
12.00 m at 2.94g/t
Au
|
125
|
2
|
143
|
|
|
|
|
|
7.70 m at 1.24g/t
Au
|
140
|
|
|
|
24BLDD120
|
7,043,622
|
641,461
|
103
|
8.00 m at 1.09g/t
Au
|
141
|
2
|
148
|
|
|
|
|
|
6.79 m at 3.28g/t
Au
|
151
|
|
|
|
24BLDD121
|
7,043,625
|
641,464
|
103
|
2.14 m at 3.74g/t
Au
|
119
|
0
|
112
|
|
24BLDD122
|
7,043,834
|
641,351
|
169
|
2.42 m at 2.83g/t
Au
|
274
|
-43
|
117
|
|
24BLDD124
|
7,043,830
|
641,350
|
169
|
NSI
|
-
|
-40
|
139
|
|
24BLDD124A
|
7,043,831
|
641,350
|
169
|
NSI
|
-
|
-37
|
139
|
|
24BLDD126
|
7,043,831
|
641,350
|
169
|
NSI
|
-
|
-31
|
148
|
|
24BLDD127
|
7,043,830
|
641,350
|
169
|
NSI
|
-
|
-35
|
147
|
|
24BLDD130
|
7,043,642
|
641,494
|
101
|
26.25 m at 2.75g/t
Au
|
80
|
-14
|
131
|
|
24BLDD131
|
7,043,642
|
641,494
|
101
|
7.88 m at 0.81g/t
Au
|
-
|
-12
|
144
|
|
|
|
|
|
3.00 m at 2.22g/t
Au
|
92
|
|
|
|
|
|
|
|
18.94 m at 4.38g/t
Au
|
105
|
|
|
|
24BLDD132
|
7,043,644
|
641,495
|
101
|
17.13 m at 1.53g/t
Au
|
82
|
-26
|
126
|
|
|
|
|
|
7.20 m at 5.00g/t
Au
|
105
|
|
|
|
24BLDD133
|
7,043,622
|
641,462
|
102
|
4.00 m at 1.69g/t
Au
|
17
|
-9
|
134
|
|
|
|
|
|
22.38 m at 5.28g/t
Au
|
112
|
|
|
|
|
|
|
|
8.00 m at 0.70g/t
Au
|
241
|
|
|
|
|
|
|
|
12.14 m at 2.77g/t
Au
|
256
|
|
|
|
|
|
|
|
7.94 m at 4.81g/t
Au
|
279
|
|
|
|
24BLDD134
|
7,043,622
|
641,462
|
102
|
15.36 m at 2.05g/t
Au
|
124
|
-9
|
142
|
|
|
|
|
|
6.05 m at 2.25g/t
Au
|
142
|
|
|
|
24BLDD135
|
7,043,622
|
641,462
|
102
|
22.86 m at 5.01g/t
Au
|
125
|
-18
|
136
|
|
24BLDD136
|
7,043,622
|
641,462
|
102
|
28.90 m at 4.83g/t
Au
|
134
|
-22
|
141
|
|
24BLDD137
|
7,043,622
|
641,462
|
102
|
25.88 m at 4.19g/t
Au
|
142
|
-18
|
146
|
|
24BLDD138
|
7,043,645
|
641,495
|
101
|
18.68 m at 3.53g/t
Au
|
95
|
-39
|
112
|
|
24BLDD139
|
7,043,642
|
641,494
|
101
|
31.00 m at 2.22g/t
Au
|
99
|
-37
|
126
|
|
24BLDD139
|
|
|
|
7.40 m at 3.92g/t
Au
|
133
|
|
|
|
|
|
|
|
6.00 m at 0.90g/t
Au
|
143
|
|
|
|
24BLDD140
|
7,043,642
|
641,494
|
101
|
12.73 m at 1.47g/t
Au
|
94
|
-28
|
140
|
|
|
|
|
|
12.58 m at 2.37g/t
Au
|
114
|
|
|
|
24BLDD142
|
7,043,622
|
641,462
|
102
|
10.17 m at 3.06g/t
Au
|
149
|
-28
|
142
|
|
|
|
|
|
23.00 m at 4.82g/t
Au
|
162
|
|
|
|
24BLDD144
|
7,043,645
|
641,495
|
101
|
24.00 m at 7.92g/t
Au
|
106
|
-42
|
75
|
|
|
|
|
|
4.00 m at 1.61g/t
Au
|
138
|
|
|
|
24BLDD145
|
7,043,645
|
641,495
|
101
|
34.17 m at 8.17g/t
Au
|
104
|
-48
|
97
|
|
24BLDD146
|
7,043,644
|
641,495
|
101
|
NSI
|
-
|
-48
|
113
|
|
24BLDD146A
|
7,043,644
|
641,495
|
101
|
11.79 m at 9.79g/t
Au
|
115
|
-48
|
113
|
|
|
|
|
|
14.58 m at 8.86g/t
Au
|
129
|
|
|
|
|
|
|
|
17.80 m at 2.70g/t
Au
|
146
|
|
|
|
24BLDD147
|
7,043,642
|
641,494
|
101
|
8.69 m at 3.05g/t
Au
|
108
|
-45
|
133
|
|
|
|
|
|
7.00 m at 4.00g/t
Au
|
119
|
|
|
|
|
|
|
|
24.00 m at 3.03g/t
Au
|
130
|
|
|
|
|
|
|
|
16.71 m at 1.74g/t
Au
|
156
|
|
|
|
|
|
|
|
12.00 m at 2.58g/t
Au
|
177
|
|
|
|
24BLDD148
|
7,043,642
|
641,494
|
101
|
4.00 m at 3.18g/t
Au
|
7
|
-39
|
140
|
|
|
|
|
|
49.52 m at 3.09g/t
Au
|
113
|
|
|
|
|
|
|
|
10.00 m at 1.00g/t
Au
|
166
|
|
|
|
24BLDD149
|
7,043,625
|
641,464
|
102
|
5.00 m at 1.06g/t
Au
|
39
|
-38
|
132
|
|
|
|
|
|
57.50 m at 1.94g/t
Au
|
133
|
|
|
|
24BLDD150
|
7,043,622
|
641,462
|
102
|
13.42 m at 1.58g/t
Au
|
145
|
-34
|
143
|
|
|
|
|
|
22.00 m at 1.73g/t
Au
|
161
|
|
|
|
|
|
|
|
7.00 m at 2.88g/t
Au
|
186
|
|
|
|
|
|
|
|
3.16 m at 2.12g/t
Au
|
196
|
|
|
|
24BLDD151
|
7,043,622
|
641,461
|
102
|
18.38 m at 7.23g/t
Au
|
195
|
-29
|
153
|
|
|
|
|
|
43.00 m at 3.50g/t
Au
|
217
|
|
|
|
|
|
|
|
12.00 m at 1.66g/t
Au
|
268
|
|
|
|
24BLDD153
|
7,043,645
|
641,496
|
101
|
10.70 m at 1.12g/t
Au
|
77
|
-32
|
81
|
|
|
|
|
|
15.70 m at 5.63g/t
Au
|
94
|
|
|
|
24BLDD163
|
7,043,756
|
641,489
|
95
|
12.87 m at 1.85g/t
Au
|
159
|
-41
|
79
|
|
|
|
|
|
3.38 m at 3.28g/t
Au
|
178
|
|
|
|
24BLDD164
|
7,043,830
|
641,350
|
169
|
5.00 m at 1.38g/t
Au
|
540
|
-34
|
150
|
|
|
|
|
|
18.00 m at 3.69g/t
Au
|
591
|
|
|
Appendix B – JORC 2012 Table 1– Gold Division
SECTION 1: SAMPLING TECHNIQUES AND DATA
(Criteria in this section apply to all succeeding sections.)
Criteria
|
JORC Code
Explanation
|
Commentary
|
Sampling
techniques
Drilling
techniques
Drill sample
recovery
|
- Nature and quality
of sampling (e.g. cut channels, random chips, or specific
specialised industry standard measurement tools appropriate to the
minerals under investigation, such as down hole gamma sondes, or
handheld XRF instruments, etc.). These examples should not be taken
as limiting the broad meaning of sampling.
- Include reference
to measures taken to ensure sample representivity and the
appropriate calibration of any measurement tools or systems
used.
- Aspects of the
determination of mineralisation that are Material to the Public
Report.
- In cases where
'industry standard' work has been done this would be relatively
simple (e.g. 'reverse circulation drilling was used to obtain 1 m
samples from which 3 kg was pulverised to produce a 30 g charge for
fire assay'). In other cases more explanation may be required, such
as where there is coarse gold that has inherent sampling problems.
Unusual commodities or mineralisation types (e.g. submarine
nodules) may warrant disclosure of detailed
information.
- Drill type (e.g.
core, reverse circulation, open-hole hammer, rotary air blast,
auger, Bangka, sonic, etc.) and details (e.g. core diameter, triple
or standard tube, depth of diamond tails, face-sampling bit or
other type, whether core is oriented and if so, by what method,
etc.).
- Method of recording
and assessing core and chip sample recoveries and results
assessed.
- Measures taken to
maximise sample recovery and ensure representative nature of the
samples.
- Whether a
relationship exists between sample recovery and grade and whether
sample bias may have occurred due to preferential loss/gain of
fine/coarse material.
|
- Diamond
Drilling
A significant portion
of the data used in resource calculations has been gathered from
diamond core. Multiple sizes have been used historically. This core
is geologically logged and subsequently halved for sampling. Grade
control holes may be whole-cored to streamline the core handling
process if required.
- Face
Sampling
At each of the major
past and current underground producers, each development face /
round is horizontally chip sampled. The sampling intervals are
domained by geological constraints (e.g. rock type, veining and
alteration / sulphidation etc.). The majority of exposures within
the orebody are sampled.
- Sludge
Drilling
Sludge drilling at is
performed with an underground production drill rig. It is an open
hole drilling method using water as the flushing medium, with a
64mm (nominal) hole diameter. Sample intervals are ostensibly the
length of the drill steel. Holes are drilled at sufficient angles
to allow flushing of the hole with water following each interval to
prevent contamination. Sludge drilling is not used to inform
resource models.
- RC
Drilling
Drill cuttings are
extracted from the RC return via cyclone. The underflow from each
interval is transferred via bucket to a four-tiered riffle
splitter, delivering approximately three kilograms of the recovered
material into calico bags for analysis. The residual material is
retained on the ground near the hole. Composite samples are
obtained from the residue material for initial analysis, with the
split samples remaining with the individual residual piles until
required for re-split analysis or eventual disposal.
- RAB / Aircore
Drilling
Combined scoops from
bucket dumps from cyclone for composite. Split samples taken from
individual bucket dumps via scoop. RAB holes are not included in
the resource estimate.
- Blast Hole
Drilling
Cuttings sampled via
splitter tray per individual drill rod. Blast holes not included in
the resource estimate. All
geology input is logged and validated by the relevant area
geologists, incorporated into this is assessment of sample
recovery. No defined relationship exists between sample recovery
and grade. Nor has sample bias due to preferential loss or gain of
fine or coarse material been noted.
|
Logging
|
- Whether core and
chip samples have been geologically and geotechnically logged to a
level of detail to support appropriate Mineral Resource estimation,
mining studies and metallurgical studies.
- Whether logging is
qualitative or quantitative in nature. Core (or costean, channel,
etc.) photography.
- The total length
and percentage of the relevant intersections logged
|
- Westgold surface
drill-holes are all orientated and have been logged in detail for
geology, veining, alteration, mineralisation and orientated
structure. Westgold underground drill-holes are logged in detail
for geology, veining, alteration, mineralisation and structure.
Core has been logged in enough detail to allow for the relevant
mineral resource estimation techniques to be employed.
- Surface core is
photographed both wet and dry and underground core is photographed
wet. All photos are stored on the Company's servers, with the
photographs from each hole contained within separate
folders.
- Development faces
are mapped geologically.
- RC, RAB and Aircore
chips are geologically logged.
- Sludge drilling is
logged for lithology, mineralisation and vein
percentage.
- Logging is both
qualitative and quantitative in nature.
- All holes are
logged completely, all faces are mapped completely.
|
Sub-sampling
techniques and sample preparation
|
- If core, whether
cut or sawn and whether quarter, half or all core
taken.
- If non-core,
whether riffled, tube sampled, rotary split, etc. and whether
sampled wet or dry.
- For all sample
types, the nature, quality and appropriateness of the sample
preparation technique.
- Quality control
procedures adopted for all sub-sampling stages to maximise
representivity of samples.
- Measures taken to
ensure that the sampling is representative of the in-situ material
collected, including for instance results for field
duplicate/second-half sampling.
- Whether sample
sizes are appropriate to the grain size of the material being
sampled.
|
- Blast holes
-Sampled via splitter tray per individual drill rods.
- RAB / AC chips -
Combined scoops from bucket dumps from cyclone for composite. Split
samples taken from individual bucket dumps via scoop.
- RC - Three tier
riffle splitter (approximately 5kg sample). Samples generally
dry.
- Face Chips -
Nominally chipped horizontally across the face from left to right,
sub-set via geological features as appropriate.
- Diamond Drilling -
Half-core niche samples, sub-set via geological features as
appropriate. Grade control holes may be whole-cored to streamline
the core handling process if required.
- Chips / core chips
undergo total preparation.
- Samples undergo
fine pulverisation of the entire sample by an LM5 type mill to
achieve a 75µ product prior to splitting.
- QA/QC is currently
ensured during the sub-sampling stages process via the use of the
systems of an independent NATA / ISO accredited laboratory
contractor. A significant portion of the historical informing data
has been processed by in-house laboratories.
- The sample size is
considered appropriate for the grain size of the material being
sampled.
- The un-sampled half
of diamond core is retained for check sampling if required. For RC
chips regular field duplicates are collected and analysed for
significant variance to primary results.
|
Quality of assay
data and laboratory tests
|
- The nature, quality
and appropriateness of the assaying and laboratory procedures used
and whether the technique is considered partial or
total.
- For geophysical
tools, spectrometers, handheld XRF instruments, etc., the
parameters used in determining the analysis including instrument
make and model, reading times, calibrations factors applied and
their derivation, etc.
- Nature of quality
control procedures adopted (e.g. standards, blanks, duplicates,
external laboratory checks) and whether acceptable levels of
accuracy (i.e. lack of bias) and precision have been
established.
|
- Recent sampling was
analysed by fire assay as outlined below;
- A 40g – 50g sample
undergoes fire assay lead collection followed by flame atomic
adsorption spectrometry.
- The laboratory
includes a minimum of 1 project standard with every 22 samples
analysed.
- Quality control is
ensured via the use of standards, blanks and
duplicates.
- No significant
QA/QC issues have arisen in recent drilling results.
- Photon Assay was
introduced in 2023 for Beta Hunt grade control samples.
PhotonAssay™ technology (Chrysos Corporation Limited) is a rapid,
non-destructive analysis of gold and other elements in mineral
samples. It is based on the principle of gamma activation, which
uses high energy x-rays to excite changes to the nuclear structure
of selected elements. The decay is then measured to give a gold
analysis. Each sample is run through two cycles with a radiation
time of 15s. This methodology is insensitive to material type and
thus does not require fluxing chemicals as in the fire assay
methodology. Highlights of the PhotonAssay™ process are as
follows:
- The process is
non-destructive; the same sample accuracy can be determined by
repeat measurements of the same sample. In addition, the instrument
runs a precision analysis for each sample relating to the
instrument precision
- The process allows
for an increased sample size, about 500 g of crushed
product.
- The crushed
material is not pulverised, as in the fire assay process; this
ensures that gold is not smeared or lost during pulverisation
(especially important if there is an expectation of visible gold
that is being analysed)
- Historical drilling
has used a combination of Fire Assay, Aqua Regia and PAL
analysis.
- These assay
methodologies are appropriate for the resources in
question.
|
Verification of
sampling and assaying
|
- The verification of
significant intersections by either independent or alternative
company personnel.
- The use of twinned
holes.
- Documentation of
primary data, data entry procedures, data verification, data
storage (physical and electronic) protocols.
- Discuss any
adjustment to assay data.
|
- No independent or
alternative verifications are available.
- Virtual twinned
holes have been drilled in several instances across all sites with
no significant issues highlighted. Drillhole data is also routinely
confirmed by development assay data in the operating
environment.
- Primary data is
collected utilising LogChief. The information is imported into a
SQL database server and verified.
- All data used in
the calculation of resources and reserves are compiled in databases
(underground and open pit) which are overseen and validated by
senior geologists.
- No adjustments have
been made to any assay data.
|
Location of data
points
|
- Accuracy and
quality of surveys used to locate drill holes (collar and down-hole
surveys), trenches, mine workings and other locations used in
Mineral Resource estimation.
- Specification of
the grid system used.
- Quality and
adequacy of topographic control.
|
- All data is
spatially oriented by survey controls via direct pickups by the
survey department. Drillholes are all surveyed downhole, deeper
holes with a Gyro tool if required, the majority with single /
multishot cameras.
- All drilling and
resource estimation is preferentially undertaken in local mine grid
at the various sites.
- Topographic control
is generated from a combination of remote sensing methods and
ground-based surveys. This methodology is adequate for the
resources in question.
|
Data spacing and
distribution
|
- Data spacing for
reporting of Exploration Results.
- Whether the data
spacing and distribution is sufficient to establish the degree of
geological and grade continuity appropriate for the Mineral
Resource and Ore Reserve estimation procedure(s) and
classifications applied.
- Whether sample
compositing has been applied.
|
- Data spacing is
variable dependent upon the individual orebody under consideration.
A lengthy history of mining has shown that this approach is
appropriate for the Mineral Resource Estimation process and to
allow for classification of the resources as they
stand.
- Compositing is
carried out based upon the modal sample length of each individual
domain.
|
Orientation of data
in relation to geological structure
|
- Whether the
orientation of sampling achieves unbiased sampling of possible
structures and the extent to which this is known, considering the
deposit type.
- If the relationship
between the drilling orientation and the orientation of key
mineralised structures is considered to have introduced a sampling
bias, this should be assessed and reported if material.
|
- Drilling
intersections are nominally designed to be normal to the orebody as
far as underground infrastructure constraints / topography
allows.
- Development
sampling is nominally undertaken normal to the various
orebodies.
- Where drilling
angles are sub optimal the number of samples per drill hole used in
the estimation has been limited to reduce any potential
bias.
- It is not
considered that drilling orientation has introduced an appreciable
sampling bias.
|
Sample
security
|
- The measures taken
to ensure sample security.
|
- For samples assayed
at on-site laboratory facilities, samples are delivered to the
facility by Company staff. Upon delivery the responsibility for
sample security and storage falls to the independent third-party
operators of these facilities.
- For samples assayed
off-site, samples are delivered to a third-party transport service,
who in turn relay them to the independent laboratory contractor.
Samples are stored securely until they leave site.
|
Audits or
reviews
|
- The results of any
audits or reviews of sampling techniques and data
|
- Site generated
resources and reserves and the parent geological data is routinely
reviewed by the Westgold Corporate technical team.
|
SECTION 2: REPORTING OF EXPLORATION RESULTS
(Criteria listed in the preceding section also apply to this
section.)
Criteria
|
JORC Code
Explanation
|
Commentary
|
Mineral tenement and
land tenure status
|
- Type, reference
name/number, location and ownership including agreements or
material issues with third parties such as joint ventures,
partnerships, overriding royalties, native title interests,
historical sites, wilderness or national park and environmental
settings.
- The security of the
tenure held at the time of reporting along with any known
impediments to obtaining a licence to operate in the
area.
|
- Native title
interests are recorded against several WGX tenements.
- The CMGP tenements
are held by the Big Bell Gold Operations (BBGO) of which Westgold
has 100% ownership.
- Several third-party
royalties exist across various tenements at CMGP, over and above
the state government royalty.
- The Fortnum Gold
Project tenure is 100% owned by Westgold through subsidiary company
Aragon Resources Pty. Ltd. Various Royalties apply to the package.
The most pertinent being;
- State Government –
2.5% NSR
- Beta Hunt is owned
by Westgold through a sub-lease agreement with St Ives Gold Mining
Company Pty Ltd (SIGMC), which gives Westgold the right to explore
and mine gold and nickel.
- Royalties on gold
production from Beta Hunt are as follows:
- A royalty to the
state government equal to 2.5% of the royalty value of gold metal
produced; and
- Royalties to third
parties equal to 4.75% of recovered gold less allowable
deductions.
- The
Higginsville-Lakewood Operations include the Higginsville and
Lakewood Mills and associated infrastructure, mining operations and
exploration prospects which are located on 242 tenements owned by
Westgold and covers approximately 1,800km2 total area.
- Royalties on the
HGO gold production are as follows:
- Production payments
of up to 1% of gross gold revenue over various tenements to
traditional land owners.
- Royalty equal to
2.5% of recovered gold to the Government of Western Australia;
and
- Various third
parties hold rights to receive royalties in respect of gold (and in
some cases other minerals or metals) recovered from the
tenements.
- The tenure is
currently in good standing.
- There are no known
issues regarding security of tenure.
- There are no known
impediments to continued operation.
- WGX operates in
accordance with all environmental conditions set down as conditions
for grant of the leases.
|
Exploration done by
other parties
|
- Acknowledgment and
appraisal of exploration by other parties
|
- The CMGP tenements
have an exploration and production history in excess of 100
years.
- The FGO tenements
have an exploration and production history in excess of 30
years.
- BHO tenements have
an exploration and production history in excess of 60
years.
- HGO tenements have
an exploration and production history in excess of 40
years.
- Westgold work has
generally confirmed the veracity of historic exploration
data.
|
Geology
|
- Deposit type,
geological setting and style of mineralisation.
|
BHO
- Beta Hunt is
situated within the central portion of the Norseman-Wiluna
greenstone belt in a sequence of mafic/ultramafic and felsic rocks
on the southwest flank of the Kambalda Dome.
- Gold mineralsation
occurs mainly in subvertical shear zones in the Lunnon Basalt and
is characterised by shear and extensional quartz veining within a
halo of biotite/pyrite alteration. Within these shear zones, coarse
gold sometimes occurs where the shear zones intersect iron-rich
sulphidic metasediments in the Lunnon Basalt or nickel sulphides at
the base of the Kambalda Komatiite (ultramafics). The mineralised
shears are represented by A-Zone, Western Flanks, Larkin and Mason
zones.
|
|
|
CGO
- CGO is located in
the Achaean Murchison Province, a granite-greenstone terrane in the
northwest of the Yilgarn Craton. Greenstone belts trending
north-northeast are separated by granite-gneiss domes, with smaller
granite plutons also present within or on the margins of the
belts.
- Mineralisation at
Big Bell is hosted in the shear zone (Mine Sequence) and is
associated with the post-peak metamorphic retrograde assemblages.
Stibnite, native antimony and trace arsenopyrite are disseminated
through the K-feldspar-rich lode schist. These are intergrown with
pyrite and pyrrhotite and chalcopyrite. Mineralisation outside the
typical Big Bell host rocks (KPSH), for example 1,600N and Shocker,
also display a very strong W-As-Sb geochemical halo.
- Numerous gold
deposits occur within the Cuddingwarra Project area, the majority
of which are hosted within the central mafic-ultramafic ± felsic
porphyry sequence. Within this broad framework, mineralisation is
shown to be spatially controlled by competency contrasts across,
and flexures along, layer-parallel D2 shear zones, and is maximised
when transected by corridors of northeast striking D3 faults and
fractures.
- The Great Fingall
Dolerite hosts the majority gold mineralisation within the portion
of the greenstone belt proximal to Cue (The Day Dawn Project Area).
Unit AGF3 is the most brittle of all the five units and this
characteristic is responsible for its role as the most favourable
lithological host to gold mineralisation in the Greenstone
Belt.
|
|
|
FGO
- The Fortnum
deposits are Paleoproterozoic shear-hosted gold deposits within the
Fortnum Wedge, a localised thrust duplex of Narracoota Formation
within the overlying Ravelstone Formation. Both stratigraphic
formations comprise part of the Bryah Basin in the Capricorn
Orogen, Western Australia.
- The Horseshoe
Cassidy deposits are hosted within the Ravelstone Formation
(siltstone and argillite) and Narracoota Formation (highly altered,
moderate to strongly deformed mafic to ultramafic rocks). The main
zone of mineralisation is developed within a horizon of highly
altered magnesian basalt. Gold mineralisation is associated with
strong vein stock works that are confined to the altered mafic.
Alteration consists of two types: stockwork proximal
silica-carbonate-fuchsite-haematite-pyrite and distal
silica-haematite-carbonate+/- chlorite.
- The Peak Hill
district represents remnants of a Proterozoic fold belt comprising
highly deformed trough and shelf sediments and mafic / ultramafic
volcanics, which are generally moderately metamorphosed (except for
the Peak Hill Metamorphic Suite).
|
|
|
HGO
- The Higginsville
Gold Operation is located in the Eastern Goldfields Superterrane of
the Archean Yilgarn Craton. The bulk of the Higginsville tenement
package is located almost entirely within the well-mineralised
Kalgoorlie Terrane, between the gold mining centres of Norseman and
St Ives. HGO can be sub-divided into seven major geological
domains: Trident Line of Lode, Chalice, Lake Cowan, Southern
Paleo-channels, Mt Henry, Polar Bear Group and Spargos Project
area.
- Majority of
mineralisation along the Trident Line of Lode are hosted within the
Poseidon gabbro and high-MgO dyke complexes in the south. The
Poseidon Gabbro is a thick, weakly-differentiated gabbroic sill,
which strikes north-south and dips 60° to the east, is over 500 m
thick and 2.5 km long. The mineralisation is hosted within or
marginal to quartz veining and is structurally and lithologically
controlled.
- The Chalice Deposit
is located within a north-south trending, 2 km to 3 km wide
greenstone terrane, flanked on the west calc-alkaline granitic
rocks of the Boorabin Batholith and to the east by the Pioneer Dome
Batholith. The dominant unit that hosts gold mineralisation is a
fine grained, weak to strongly foliated amphibole-plagioclase
amphibolite, with a typically lepidoblastic (mineralogically
aligned and banded) texture. It is west-dipping and generally
steep, approximately 60° to 75°.
- The Lake Cowan
project area is situated near the centre of a regional anticline
between the Zuleika and Lefroy faults, with the local geology of
the area made more complex by the intrusion of the massive
Proterozoic Binneringie dyke. The majority of mineralisation at the
Lake Cowan Mining Centre is hosted within an enclave of Archaean
material surrounded by the Binneringie dyke.
- Mineralised zones
within the Southern Paleo Channels network comprise both placer
gold, normally near the base of the channel-fill sequences, and
chemically-precipitated secondary gold within the channel-fill
materials and underlying saprolite. These gold concentrations
commonly overlie, or are adjacent to, primary mineralised zones
within Archaean bedrock.
- The Mount Henry
Project covers 347km2 of the prolific South Norseman‐Wiluna
Greenstone belt of the Eastern Goldfields in Western Australia.
Although the greenstone rocks from the Norseman area can be broadly
correlated with those of the Kalgoorlie – Kambalda region they form
a distinct terrain which is bounded on all sides by major regional
shears. The Norseman Terrane has prominent banded iron formations
which distinguish it from the Kalgoorlie– Kambalda Terrane. The
Mount Henry gold deposit is hosted by a silicate facies BIF unit
within the Noganyer Formation. Gold mineralisation is predominantly
hosted by the silicate facies BIF unit but is also associated with
minor meta‐basalt and dolerite units that were mostly emplaced in
the BIF prior to mineralisation. The footwall to the BIF is
characterised by a sedimentary schistose unit and the hanging wall
by the overlying dolerites of the Woolyeener Formation. The Mount
Henry gold deposit is classified as an Archean, orogenic shear
hosted deposit. The main lode is an elongated, shear‐hosted body,
1.9km long by 6 – 10 metres wide and dips 65‐75 degrees towards the
west.
- The Polar Bear
project is situated within the Archaean Norseman-Wiluna Belt which
locally includes basalts, komatiites, metasediments, and felsic
volcaniclastics. The primary gold mineralisation is related to
hydrothermal activity during multiple deformation events.
Indications are that gold mineralisation is focused on or near to
the stratigraphic boundary between the Killaloe and Buldania
Formation.
- The Spargos Project
occurs within Coolgardie Domain of the Kalgoorlie Terrane. The area
is bounded by the Zuleika Shear to the east and the Kunanalling
Shear to the west. The geological setting comprises tightly-folded
north-south striking ultramafic and mafic volcanic rocks at the
northern closure Widgiemooltha Dome. The project lies on the
general trend of the Kunanalling / Karramindie Shear corridor, a
regional shear zone that hosts significant mineralisation to the
north at Ghost Crab (Mount Marion), Wattle Dam to the south, the
Penfolds group and Kunanalling. The regional prospective Zuleika
Shear lies to the east of the project. The tenements are
prospective for vein and shear hosted gold deposits as demonstrated
by Spargos Reward and numerous other gold workings and occurrences.
Gold mineralisation at Spargos Reward is hosted by a coarse-grained
pyrite-arsenopyrite lode in quartz-sericite schists, between
strongly biotitic altered greywacke to the east and
quartz-sericite-fuchsite-pyrite altered felsic tuff to the west.
Gold mineralisation is associated with very little quartz veining
which is atypical for many deposits in region. The Spargos Reward
setting has been described variously as a low-quartz sulphidic
mesothermal gold system or as a Hemlo style syn-sedimentary
occurrence.
MGO
- MGO is located in
the Achaean Murchison Province, a granite-greenstone terrane in the
northwest of the Yilgarn Craton. Greenstone belts trending
north-northeast are separated by granite-gneiss domes, with smaller
granite plutons also present within or on the margins of the
belts.
- The Paddy's Flat
area is located on the western limb of a regional fold, the Polelle
Syn- cline, within a sequence of mafic to ultramafic volcanics with
minor interflow sediments and banded iron-formation. The sequence
has also been intruded by felsic porphyry dykes prior to
mineralisation. Mineralisation is located along four sub-parallel
trends at Paddy's Flat which can be summarized as containing three
dominant mineralisation styles:
- Sulphide
replacement BIF hosted gold. Quartz vein hosted shear-related
gold.
- Quartz-carbonate-sulphide stockwork vein and
alteration related gold.
- The Yaloginda area
which host Bluebird – South Junction, is a gold-bearing Archaean
greenstone belt situated ~15km south of Meekatharra. The deposits
in the area are hosted in a strained and metamorphosed volcanic
sequence that consists primarily of ultramafic and high-magnesium
basalt with minor komatiite, peridotite, gabbro, tholeiitic basalt
and interflow sediments. The sequence was intruded by a variety of
felsic porphyry and intermediate sills and dykes.
- The Reedy's mining
district is located approximately 15 km to the south-east to
Meekatharra and to the south of Lake Annean. The Reedy gold
deposits occur with- in a north-south trending greenstone belt, two
to five kilometres wide, composed of volcano-sedimentary sequences
and separated multiphase syn- and post-tectonic granitoid
complexes. Structurally controlled the gold occur.
|
Drill hole
Information
|
- A summary of all
information material to the understanding of the exploration
results including a tabulation of the following information for all
Material drill holes:
- easting and
northing of the drill hole collar
- elevation or RL
(Reduced Level – elevation above sea level in metres) of the drill
hole collar
- dip and azimuth of
the hole
- down hole length
and interception depth
- hole
length.
- If the exclusion of
this information is justified on the basis that the information is
not Material and this exclusion does not detract from the
understanding of the report, the Competent Person should clearly
explain why this is the case.
|
- Tables containing
drillhole collar, downhole survey and intersection data are
included in the body of the announcement.
- No explorations
results are being reported for Beta Hunt and Higginsville
Operations.
|
Data aggregation
methods
|
- In reporting
Exploration Results, weighting averaging techniques, maximum and/or
minimum grade truncations (e.g., cutting of high grades) and
cut-off grades are usually Material and should be
stated.
- Where aggregate
intercepts incorporate short lengths of high-grade results and
longer lengths of low-grade results, the procedure used for such
aggregation should be stated and some typical examples of such
aggregations should be shown in detail.
- The assumptions
used for any reporting of metal equivalent values should be clearly
stated.
|
- All results
presented are length weighted.
- No high-grade cuts
are used.
- Reported results
contain no more than two contiguous metres of internal dilution
below 0.5g/t. For Beta Hunt, a cut off of 1 g/t Au with maximum
internal waste of 2m is used to define significant
intercepts.
- Results are
reported above a variety of gram / metre cut-offs dependent upon
the nature of the hole. These are cut-offs are clearly stated in
the relevant tables.
- Unless indicated to
the contrary, all results reported are downhole width.
- Given restricted
access in the underground environment the majority of drillhole
intersections are not normal to the orebody.
|
Relationship between
mineralisation widths and intercept lengths
|
- These relationships
are particularly important in the reporting of Exploration
Results.
- If the geometry of
the mineralisation with respect to the drill hole angle is known,
its nature should be reported.
- If it is not known
and only the down hole lengths are reported, there should be a
clear statement to this effect (e.g., 'down hole length, true width
not known').
|
- Unless indicated to
the contrary, all results reported are downhole width.
- Given restricted
access in the underground environment the majority of drillhole
intersections are not normal to the orebody.
|
Diagrams
|
- Appropriate maps
and sections (with scales) and tabulations of intercepts should be
included for any significant discovery being reported These should
include, but not be limited to a plan view of drill hole collar
locations and appropriate sectional views.
|
- Appropriate
diagrams are provided in the body of the release if
required.
|
Balanced
reporting
|
- Where comprehensive
reporting of all Exploration Results is not practicable,
representative reporting of both low and high grades and/or widths
should be practiced to avoid misleading reporting of Exploration
Results.
|
- Appropriate balance
in exploration results reporting is provided.
|
Other substantive
exploration data
|
- Other exploration
data, if meaningful and material, should be reported including (but
not limited to): geological observations; geophysical survey
results; geochemical survey results; bulk samples – size and method
of treatment; metallurgical test results; bulk density,
groundwater, geotechnical and rock characteristics; potential
deleterious or contaminating substances.
|
- There is no other
substantive exploration data associated with this
release.
|
Further
work
|
- The nature and
scale of planned further work (e.g. tests for lateral extensions or
depth extensions or large-scale step-out drilling).
- Diagrams clearly
highlighting the areas of possible extensions, including the main
geological interpretations and future drilling areas, provided this
information is not commercially sensitive.
|
- Ongoing surface and
underground exploration activities will be undertaken to support
continuing mining activities at Westgold Gold
Operations.
|
SECTION 3: ESTIMATION AND REPORTING
OF MINERAL RESOURCES
(Criteria listed in section 1, and where relevant in section 2,
also apply to this section.)
Criteria
|
JORC Code
Explanation
|
Commentary
|
Database
integrity
|
- Measures taken to
ensure that data has not been corrupted by, for example,
transcription or keying errors, between its initial collection and
its use for Mineral Resource estimation purposes.
- Data validation
procedures used.
|
- The database used
for the estimation was extracted from the Westgold's DataShed
database management system stored on a secure SQL
server.
- As new data is
acquired it passes through a validation approval system designed to
pick up any significant errors before the information is loaded
into the master database.
|
Site
visits
|
- Comment on any site
visits undertaken by the Competent Person and the outcome of those
visits.
- If no site visits
have been undertaken indicate why this is the case.
|
- Mr. Russell visits
Westgold Gold Operations regularly.
|
Geological
interpretation
|
- Confidence in (or
conversely, the uncertainty of) the geological interpretation of
the mineral deposit.
- Nature of the data
used and of any assumptions made.
- The effect, if any,
of alternative interpretations on Mineral Resource
estimation.
- The use of geology
in guiding and controlling Mineral Resource estimation.
- The factors
affecting continuity both of grade and geology.
|
- Mining in the
Murchison and Goldfields districts has occurred since 1800's
providing significant confidence in the currently geological
interpretation across all projects.
- Confidence in the
geological interpretation at BHO is high. The current geological
interpretation has been a precursor to successful mining over the
years and forms the basis for the long-term life of mine plan
(LOM). The data and assumptions used do suggest that any
significant alternative geological interpretation is
unlikely.
- Geology
(lithological units, alterations, structure, veining) have been
used to guide and control Mineral Resource estimation for Beta Hunt
and HGO
- No alternative
interpretations are currently considered viable.
- Geological
interpretation of the deposit was carried out using a systematic
approach to ensure that the resultant estimated Mineral Resource
figure was both sufficiently constrained, and representative of the
expected sub-surface conditions. In all aspects of resource
estimation the factual and interpreted geology was used to guide
the development of the interpretation.
- Geological matrixes
were established to assist with interpretation and construction of
the estimation domains.
- The structural
regime is the dominant control on geological and grade continuity
in the Murchison and Goldfields. Lithological factors such as
rheology contrast are secondary controls on grade
distribution.
- Low-grade
stockpiles are derived from previous mining of the mineralisation
styles outlined above.
|
Dimensions
|
- The extent and
variability of the Mineral Resource expressed as length (along
strike or otherwise), plan width, and depth below surface to the
upper and lower limits of the ineral Resource.
|
BHO
- A-Zone extends over
2.2km strike length and is modelled to a vertical depth of 960m. It
has variable thickness from 2m to 20m thick.
- Western Flanks has
a strike extent of 1.8km and is modelled to a vertical extent of
450m, with average thickness of the shear around 10m.
- Larkin extends over
1.1km in strike length and is modelled to 400m vertical extent,
with variable thickness ranging from 2m to 15m thick.
- Mason has a strike
extent of 1.1km and is modelled to 455m vertical extent with
variable thickness between 7 to 15m.
CGO
- The Big Bell Trend
is mineralised a strike length of >3,900m, a lateral extent of
up +50m and a depth of over 1,500m.
- Great Fingall is
mineralised a strike length of >500m, a lateral extent of
>600m and a depth of over 800m.
- Black Swan South is
mineralised a strike length of >1,700m, a lateral extent of up
+75m and a depth of over 300m.
FGO
- The Yarlarweelor
mineral resource extends over 1,400m in strike length, 570m in
lateral extent and 190m in depth.
- The Tom's and Sam's
mineral resource extends over 650m in strike length, 400m in
lateral extent and 130m in depth.
- The Eldorado
mineral resource extends over 240m in strike length, 100m in
lateral extent and 100m in depth.
HGO
- Trident, Fairplay,
Vine and Two Boy's deposits form the Line of Lode system and
extends over 5km of strike.
- Chalice
mineralisation has been defined over a strike length of 700m, a
lateral extent of 200m and a depth of 650m.
- The Pioneer
resource area extends over a strike length of 860m from 6,474,900mN
to 6,475,760mN. The multiple NS striking parallel lodes occur
within a narrow EW extent of 190m from 374,970mE to 375,160mE.
Mineralisation has been modelled from surface at 291mRL to a
vertical depth 208m to the 83mRL.
- Southern
paleochannels gold mineralisation is interpreted to have a strike
length around 4km and is predominantly flat lying.
- The Wills deposit
extends over 900m in a ENE-WSW direction and is up to 200m wide.
Pluto is confirmed between sections 6,480,100mN and 6,481,800mN.
Nanook is confirmed between sections 6,469,300mN and
6,472,500mN.
- Lake Cowan:
Atreides mineralisation is contained within flat lying lodes
located within the weathered zone. The mineralision strike extents
vary between 100m to 300m long, with an average thickness of 2 to 3
m thick. Josephine has a strike length greater than 450m and
>10m across strike and modelled to >90m at depth. Louis has a
strike extent of 310m long and is interpreted to a depth of 170m
below surface. Napoleon: ~220m strike and up to ~90m (individual
mineralised lodes maximum of 12m) across strike to an interpreted
depth of ~80m m below surface. Rose's dimension is 150m x 120m (X,
Y), to an interpreted depth of +20-25m below surface.
- The Spargos
resource area extends over a strike length of 330m from 6,542,980mN
to 6,543,310mN. The parallel lodes occur within a narrow EW extent
of 95m from 354,120mE to 354,215mE. Mineralisation has been
modelled from surface at 425mRL to a vertical depth 525m to
-100mRL.
MGO
- The Paddy's Flat
Trend is mineralised a strike length of >3,900m, a lateral
extent of up +230m and a depth of over 500m.
- Bluebird – South
Junction is mineralised a strike length of >1,800m, a lateral
extent of up +50m and a depth of over 500m.
- Triton – South Emu
is mineralised a strike length of >1,100m, a lateral extent of
several metres and a depth of over 500m.
STOCKPILES
- Low-grade
stockpiles are of various dimensions. All modelling and estimation
work undertaken by Westgold is carried out in three dimensions via
Surpac Vision.
|
Estimation and
modelling techniques.
|
- The nature and
appropriateness of the estimation technique(s) applied and key
assumptions, including treatment of extreme grade values,
domaining, interpolation parameters, maximum distance of
extrapolation from data points.
- The availability of
check estimates, previous estimates and/or mine production records
and whether the Mineral Resource estimate takes appropriate account
of such data.
- The assumptions
made regarding recovery of by-products.
- Estimation of
deleterious elements or other non-grade variables of economic
significance (e.g. sulphur for acid mine drainage
characterisation).
- In the case of
block model interpolation, the block size in relation to the
average sample spacing and the search employed.
- Any assumptions
behind modelling of selective mining units.
- Any assumptions
about correlation between variables.
- The process of
validation, the checking process used, the comparison of model data
to drillhole data, and use of reconciliation data if
available.
|
- After validating
the drillhole data to be used in the estimation, interpretation of
the orebody is undertaken in sectional and / or plan view to create
the outline strings which form the basis of the three-dimensional
orebody wireframe. Wireframing is then carried out using a
combination of automated stitching algorithms and manual
triangulation to create an accurate three-dimensional
representation of the sub-surface mineralised body.
- Drillhole
intersections within the mineralised body are defined, these
intersections are then used to flag the appropriate sections of the
drillhole database tables for compositing purposes. Drillholes are
subsequently composited to allow for grade estimation. In all
aspects of resource estimation, the factual and interpreted geology
was used to guide the development of the
interpretation.
- Once the sample
data has been composited, a statistical analysis is undertaken to
assist with determining estimation search parameters, top-cuts etc.
Variographic analysis of individual domains is undertaken to assist
with determining appropriate search parameters. Which are then
incorporated with observed geological and geometrical features to
determine the most appropriate search parameters.
- An empty block
model is then created for the area of interest. This model contains
attributes set at background values for the various elements of
interest as well as density, and various estimation parameters that
are subsequently used to assist in resource categorisation. The
block sizes used in the model will vary depending on orebody
geometry, minimum mining units, estimation parameters and levels of
informing data available.
- Grade estimation is
then undertaken, with ordinary kriging estimation method is
considered as standard, although in some circumstances where sample
populations are small, or domains are unable to be accurately
defined, inverse distance weighting estimation techniques will be
used. For very minor lodes, the respective median or average grade
is assigned. Both by-product and deleterious elements are estimated
at the time of primary grade estimation if required. It is assumed
that by- products correlate well with gold. There are no
assumptions made about the recovery of by-products.
- The resource is
then depleted for mining voids and subsequently classified in line
with JORC guidelines utilising a combination of various estimation
derived parameters and geological / mining knowledge.
- This approach has
proven to be applicable to Westgold's gold assets.
- Estimation results
are routinely validated against primary input data, previous
estimates and mining output.
- Good reconciliation
between mine claimed figures and milled figures are routinely
achieved during production.
|
Moisture
|
- Whether the
tonnages are estimated on a dry basis or with natural moisture, and
the method of determination of the moisture content.
|
- Tonnage estimates
are dry tonnes.
|
Cut-off
parameters
|
- The basis of the
adopted cut-off grade(s) or quality parameters applied.
|
- The cut off grades
used for the reporting of the Mineral Resources have been selected
based on the style of mineralisation, depth from surface of the
mineralisation and the most probable extraction technique and
associated costs.
|
Mining factors or
assumptions
|
- Assumptions made
regarding possible mining methods, minimum mining dimensions and
internal (or, if applicable, external) mining dilution. It is
always necessary as part of the process of determining reasonable
prospects for eventual economic extraction to consider potential
mining methods, but the assumptions made regarding mining methods
and parameters when estimating Mineral Resources may not always be
rigorous. Where this is the case, this should be reported with an
explanation of the basis of the mining assumptions
made.
|
- Variable by
deposit.
- No mining dilution
or ore loss has been modelled in the resource model or applied to
the reported Mineral Resource.
|
Metallurgical
factors or assumptions
|
- The basis for
assumptions or predictions regarding metallurgical amenability. It
is always necessary as part of the process of determining
reasonable prospects for eventual economic extraction to consider
potential metallurgical methods, but the assumptions regarding
metallurgical treatment processes and parameters made when
reporting Mineral Resources may not always be rigorous. Where this
is the case, this should be reported with an explanation of the
basis of the metallurgical assumptions made.
|
- Not considered for
Mineral Resource. Applied during the Reserve generation
process.
|
Environmental
factors or assumptions
|
- Assumptions made
regarding possible waste and process residue disposal options. It
is always necessary as part of the process of determining
reasonable prospects for eventual economic extraction to consider
the potential environmental impacts of the mining and processing
operation. While at this stage the determination of potential
environmental impacts, particularly for a greenfields project, may
not always be well advanced, the status of early consideration of
these potential environmental impacts should be reported. Where
these aspects have not been considered this should be reported with
an explanation of the environmental assumptions made.
|
- Westgold operates
in accordance with all environmental conditions set down as
conditions for grant of the respective leases.
|
Bulk
density
|
- Whether assumed or
determined. If assumed, the basis for the assumptions. If
determined, the method used, whether wet or dry, the frequency of
the measurements, the nature, size and representativeness of the
samples.
- The bulk density
for bulk material must have been measured by methods that
adequately account for void spaces (vugs, porosity, etc.), moisture
and differences between rock and alteration zones within the
deposit.
- Discuss assumptions
for bulk density estimates used in the evaluation process of the
different materials.
|
- Bulk density of the
mineralisation is variable and is for the most part lithology and
oxidation rather than mineralisation dependent.
- A large suite of
bulk density determinations has been carried out across the project
areas. The bulk densities were separated into different weathering
domains and lithological domains.
- A significant past
mining history has validated the assumptions made surrounding bulk
density.
|
Classification
|
- The basis for the
classification of the Mineral Resources into varying confidence
categories.
- Whether appropriate
account has been taken of all relevant factors (i.e. relative
confidence in tonnage/grade estimations, reliability of input data,
confidence in continuity of geology and metal values, quality,
quantity and distribution of the data).
- Whether the result
appropriately reflects the Competent Person's view of the
deposit.
|
- Resources are
classified in line with JORC guidelines utilising a combination of
various estimation derived parameters, input data and geological /
mining knowledge.
- Drillhole spacing
to support classification varies based upon lode characteristics.
Measured ranges from 15-35m, Indicated from 10-180m and Inferred
from 10-200m.
- This approach
considers all relevant factors and reflects the Competent Person's
view of the deposit.
|
Audits or
reviews
|
- The results of any
audits or reviews of Mineral Resource estimates.
|
- Resource estimates
are peer reviewed by the Corporate technical team.
- No external reviews
have been undertaken.
|
Discussion of
relative accuracy/ confidence
|
- Where appropriate a
statement of the relative accuracy and confidence level in the
Mineral Resource estimate using an approach or procedure deemed
appropriate by the Competent Person. For example, the application
of statistical or geostatistical procedures to quantify the
relative accuracy of the resource within stated confidence limits,
or, if such an approach is not deemed appropriate, a qualitative
discussion of the factors that could affect the relative accuracy
and confidence of the estimate.
- The statement
should specify whether it relates to global or local estimates,
and, if local, state the relevant tonnages, which should be
relevant to technical and economic evaluation. Documentation should
include assumptions made and the procedures used.
- These statements of
relative accuracy and confidence of the estimate should be compared
with production data, where available.
|
- All currently
reported resource estimates are considered robust, and
representative on both a global and local scale.
- A continuing
history of mining with good reconciliation of mine claimed to mill
recovered provides confidence in the accuracy of the
estimates.
|
SECTION 4: ESTIMATION AND REPORTING OF ORE RESERVES
(Criteria listed in section 1, and where relevant in sections 2
and 3, also apply to this section.)
Criteria
|
JORC Code
Explanation
|
Commentary
|
Mineral Resource
estimate for conversion to Ore Reserves
|
- Description of the
Mineral Resource estimate used as a basis for the conversion to an
Ore Reserve.
- Clear statement as
to whether the Mineral Resources are reported additional to, or
inclusive of, the Ore Reserves.
|
- At all Operations
the Ore Reserve is based on the corresponding reported Mineral
Resource Estimate.
- Mineral Resource
Estimates reported are inclusive of those Mineral Resources
Estimates modified to produce the Ore Reserve.
- At all projects,
all Mineral Resources Estimates that have been converted to Ore
Reserve are classified as either an Indicated or
Measured.
|
Site
visits
|
- Comment on any site
visits undertaken by the Competent Person and the outcome of those
visits.
- If no site visits
have been undertaken indicate why this is the case.
|
- Mr. Leigh Devlin
has over 10 years' experience in the mining industry. Mr. Devlin
visits the mine sites on a regular basis and is one of the primary
engineers involved in mine planning, site infrastructure and
project management.
|
Study
status
|
- The type and level
of study undertaken to enable Mineral Resources to be converted to
Ore Reserves.
- The Code requires
that a study to at least Pre-Feasibility Study level has been
undertaken to convert Mineral Resources to Ore Reserves. Such
studies will have been carried out and will have determined a mine
plan that is technically achievable and economically viable, and
that material Modifying Factors have been considered
|
- Processing at the
Murchison operations has occurred continuously since 2015, with
previous production occurring throughout 1800's, 1900's and 2000's.
Processing at the Goldfields operations has occurred intermittently
since the 1980's and continuously since 2008 at
Higginsville.
- Various
mineralisation styles and host domains have been mined since
discovery. Mining during this time has ranged from open pit
cutbacks, insitu surface excavations to extensional underground
developments.
- Budget level, 24
month projected, forecasts are completed on a biannual basis,
validating cost and physical inventory assumptions and modelling.
These updated parameters are subsequently used for the basis of the
Ore Reserve modification and financial factors.
- Following
exploration and infill drilling activity, resource models are
updated on both the estimation of grade and classification. These
updated Mineral Resources Estimates then form the foundation for
the Ore Reserve.
|
Cut-off
parameters
|
- The basis of the
cut-off grade(s) or quality parameters applied.
|
- Underground Mines -
Cut off grades are used to determine the economic viability of the
convertible Mineral Resources Estimates. COG for underground mines
incorporate OPEX development and production costs, grade control,
haulage, milling, administration, along with state and private
royalty conditions, Where an individual mine has different mining
methods and or various orebody style, COG calculations are
determined for each division. These cuts are applied to production
shapes (stopes) as well as high grade development. Additionally, an
incremental COG is applied to low grade development, whereby access
to a high grade area is required.
- On the basis of
above process, the COG is split into Mine Operating COG
(incremental grade) 2.1gt and Fully Costed COG (inclusive of
capital) 2.3gt.
- Open Pit Mines -
The pit rim cut-off grade (COG) was determined as part of the Ore
Reserve. The pit rim COG accounts for grade control, haulage,
milling, administration, along with state and private royalty
conditions. This cost profile is equated against the value of the
mining block in terms of recovered metal and the expected selling
price. The COG is then used to determine whether or not a mining
block should be delivered to the treatment plant for processing,
stockpiled as low- grade or taken to the waste dump.
- On the basis of
above process, COGs for the open pit mines range from 0.8g/t
(whereby the Mill is local to mine and Mill recoveries are greater
than 90%) to 1.4g/t (regional pits with low Mill
recoveries).
- Stockpile COG – A
marginal grade was determined for each stockpile inventory to
ensure it was economically viable. The COG accounts for haulage,
milling, administration, along with state and private royalty
conditions. Each pile honoured its Mill recovery
percentage.
|
Mining factors or
assumptions
|
- The method and
assumptions used as reported in the Pre-Feasibility or Feasibility
Study to convert the Mineral Resource to an Ore Reserve (i.e.
either by application of appropriate factors by optimisation or by
preliminary or detailed design).
- The choice, nature
and appropriateness of the selected mining method(s) and other
mining parameters including associated design issues such as
pre-strip, access, etc.
- The assumptions
made regarding geotechnical parameters (e.g. pit slopes, stope
sizes, etc.), grade control and pre-production
drilling.
- The major
assumptions made and Mineral Resource model used for pit and stope
optimisation (if appropriate).
- The mining dilution
factors used.
- The mining recovery
factors used.
- Any minimum mining
widths used.
- The manner in which
Inferred Mineral Resources are utilised in mining studies and the
sensitivity of the outcome to their inclusion.
- The infrastructure
requirements of the selected mining methods.
|
- All Ore Reserve
inventories are based upon detailed 3-dimensional designs to ensure
practical mining conditions are met. Additionally, all Ore Reserve
inventories are above the mine specific COG(s) as well as
containing only Measured and Indicated material. Depending upon the
mining method – modifying factors are used to address hydrological,
geotechnical, minimum width and blasting conditions.
Open Pit
Methodology
- The mining shape in
the Ore Reserve estimation is generated by a wireframe (geology
interpretation of the mineralisation) which overlays the block
model. Where the wire frame cuts the primary block, sub blocks fill
out the remaining space to the wire frame boundary (effectively the
mining shape). It is reasonable to assume that the mining method
can selectively mine to the wire frame boundary with the additional
dilution provision stated below.
- Ore Reserves are
based on pit designs – with appropriate modifications to the
original Whittle Shell outlines to ensure compliance with practical
mining parameters.
- Geotechnical
parameters aligned to the open pit Ore Reserves are either based on
observed existing pit shape specifics or domain specific
expectations / assumptions. Various geotechnical reports and
retrospective reconciliations were considered in the design
parameters. A majority of the open pits have a final design wall
angle of 39-46 degrees, which is seen as conservative.
- Dilution of the ore
through the mining process has been accounted for within the Ore
Reserve quoted inventory. Various dilution ratios are used to
represent the style of mineralisation. Where continuous, consistent
mineralisation boundaries and grade represent the mineralised
system the following factors are applied: oxide 15%, transitional
17% and fresh 19%. In circumstances where the orebody is less
homogenous above the COG then the following dilution factors are
applied in order to model correctly the inherent variability of
extracting discrete sections of the pit floor: oxide 17%,
transitional 19% and fresh 21%. To ensure clarity, the following
percentages are additional ore mined in relation to excavating the
wire frame boundary as identified in point 1 above, albeit at a
grade of 0.0 g/t. The amount of dilution is considered appropriate
based on mineralisation geometry, historical mining performance and
the size of mining equipment to be used to extract ore.
- Expected mining
recovery of the ore has been set at 93%.
- Minimum mining
widths have been accounted for in the designs, with the utilisation
of 40t or 90t trucking parameters depending upon the size of the
pit excavation.
- No specific ground
support requirements are needed outside of suitable pit slope
design criteria based on specific geotechnical domains.
- Mining sequence is
included in the mine scheduling process for determining the
economic evaluation and takes into account available operating time
and mining equipment size and performance.
- No Inferred
material is included within the open pit statement, though in
various pit shapes Inferred material is present. In these
situations this Inferred material is classified as
waste.
|
|
|
Underground
Methodology
- All underground Ore
Reserves are based on 3D design strings and polygon derived stope
shapes following the Measured and Indicated Mineral Resource
Estimates (in areas above the Mine Operating COG). A complete mine
schedule is then derived from this design to create a LoM plan and
financial analysis.
- Mining heights and
widths are based on first principles and standardised mining
methods employed widely throughout Western Australia.
- Geotechnical
evaluations have been used in determining the size and filling
methodologies. Subsequent costs associated with these methods have
been included within the study and budgeting formats.
- In large,
disseminated orebodies sub level caving, sub level open stoping or
single level bench stoping production methodologies are
used.
- In narrow vein
laminated quartz hosted domains, a conservative narrow bench style
mining method is used.
- In narrow flat
dipping deposits, a flat long hole process is adopted (with fillets
in the footwall for rill angle) and or jumbo stoping.
- Stope shape
parameters have been based on historical data (where possible) or
expected stable hydraulic radius dimensions.
- Stope inventories
have been determined by cutting the geological wireframe at above
the area specific COG and applying mining dilution and ore loss
factors. The ore loss ratio accounts for pillar locations between
the stopes (not operational ore loss) whilst dilution allows for
conversion of the geological wireframe into a minable shape
(planned dilution) as well as hangingwall relaxation and blasting
overbreak (unplanned dilution).
- Depending upon the
style of mineralisation, sub level interval, blasthole diameters
used and if secondary support is installed, total dilution ranges
from 10 to 35%.
- Minimum mining
widths have been applied in the various mining methods. The only
production style relevant to this constraint is 'narrow stoping' –
where the minimum width is set at 1.5m in a 17.0m sub level
interval.
- Mining operational
recovery for the underground mines is set at 85-100% due to the use
of remote loading units as well as paste filling activities. Mining
recovery is not inclusive of pillar loss – insitu mineralised
material between adjacent stope panels.
- Stope shape
dimensions vary between the various methods. Default hydraulic
radii (HR) are applied to each method and are derived either from
historical production or geotechnical reports / recommendations.
Where no data or exposure is available conservative HR values are
used based on the contact domain type.
- Mining sequence is
included in the mine scheduling process for determining the
economic evaluation and takes into account available operating time
and mining equipment size and performance.
|
Metallurgical
factors or assumptions
|
- The metallurgical
process proposed and the appropriateness of that process to the
style of mineralisation.
- Whether the
metallurgical process is well-tested technology or novel in
nature.
- The nature, amount
and representativeness of metallurgical test work undertaken, the
nature of the metallurgical domaining applied and the corresponding
metallurgical recovery factors applied.
- Any assumptions or
allowances made for deleterious elements.
- The existence of
any bulk sample or pilot scale test work and the degree to which
such samples are considered representative of the orebody as a
whole.
- For minerals that
are defined by a specification, has the ore reserve estimation been
based on the appropriate mineralogy to meet the
specifications?
|
BHO
- A long history of
processing through several CIL processing existing facilities
demonstrates the appropriateness of the process to the styles of
mineralisation considered.
- No deleterious
elements are considered, the long history of processing has shown
this to be not a material concern.
CGO
- CGO has an existing
conventional CIL processing plant.
- The plant has a
nameplate capacity of 1.4Mtpa though this can be varied between
1.2- 1.6Mtpa pending rosters and material type.
- Gold extraction is
achieved using two staged crushing, ball milling with gravity
concentration and Carbon in Leach.
- Despite CGO having
a newly commissioned processing plant (2012/13 and subsequently
restarted in 2018) a high portion of the Ore Reserve mill feed have
extensive data when processed at other plants in the past 2-3
decades. This long history of processing demonstrates the
appropriateness of the process to the styles of mineralisation
considered.
- No deleterious
elements are considered, as a long history of processing has shown
this to be not a material concern.
- For the Ore
Reserve, Plant recoveries of 80-93% have been utilised.
|
|
|
FGO
- FGO has an existing
conventional CIL processing plant – which has been operational in
various periods since the late 1980's. The plant has a nameplate
capacity of 1.0Mtpa though this can be varied between 0.8-1.2Mtpa
pending rosters and material type.
- An extensive
database of historical CIL recoveries as well as detailed
metallurgical test work is available for the various deposits, and
these have been incorporated into the COG analysis and financial
models.
- For the Ore
Reserve, Plant recoveries of 93-95% have been utilised.
HGO
- Gold extraction is
achieved using staged crushing, ball milling with gravity
concentration and Carbon in Leach. The Higginsville plant has
operated since 2008.
- Treatment of ore is
via conventional gravity recovery / intensive cyanidation and CIL
is applied as industry standard technology.
- Additional
test-work is instigated where notable changes to geology and
mineralogy are identified. Small scale batch leach tests on primary
Louis ore have indicated lower recoveries (80%) associated with
finer gold and sulphide mineralisation.
- There have been no
major examples of deleterious elements affecting gold extraction
levels or bullion quality. Some minor variations in sulphide
mineralogy have had short-term impacts on reagent
consumptions.
- No bulk sample
testing is required whilst geology/mineralogy is consistent based
on treatment plant performance.
MGO
- MGO has an existing
conventional CIL processing plant – which has been operational in
various periods since the late 1980's.
- The plant has a
nameplate capacity of 1.6Mtpa though this can be varied between
1.2- 1.8Mtpa pending rosters and material type.
- Gold extraction is
achieved using single stage crushing, SAG and ball milling with
gravity concentration and Carbon in Leach.
- A long history of
processing through the existing facility demonstrates the
appropriateness of the process to the styles of mineralisation
considered.
- No deleterious
elements are considered, as a long history of processing has shown
this to be not a material concern.
- For the Ore
Reserve, Plant recoveries of 85-92% have been utilised.
|
Environmental
|
- The status of
studies of potential environmental impacts of the mining and
processing operation. Details of waste rock characterisation and
the consideration of potential sites, status of design options
considered and, where applicable, the status of approvals for
process residue storage and waste dumps should be
reported.
|
BHO
- BHO operates under
and in compliance with a number of operating environmental plans,
which cover its environmental impacts and outputs as well as
reporting guidelines / frequencies.
- Various Reserve
inventories do not have current DMP / DWER licenses – though there
are no abnormal conditions / factors associated with these assets
which the competent person sees as potentially threatening to the
particular project.
- The operation is
frequently inspected by the regulatory authorities of DMP and DWER
with continual feedback on environmental best practice and
reporting results.
- Flood Management,
Inclement Weather and Traffic Management Plans existing for the
operation to minimise the risks of environmental
impacts.
- Standard Operating
Procedures for the transfer of hazardous materials and restocking
of Dangerous Goods existing on site to mitigate the risk of these
materials entering the environment.
CGO
- CGO operates under
and in compliance with a number of operating environmental plans,
which cover its environmental impacts and outputs as well as
reporting guidelines / frequencies.
- Various Reserve
inventories do not have current DMP / DWER licenses – though there
are no abnormal conditions / factors associated with these assets
which the competent person sees as potentially threatening to the
particular project.
- The operation is
frequently inspected by the regulatory authorities of DMP and DWER
with continual feedback on environmental best practice and
reporting results.
- Flood Management,
Inclement Weather and Traffic Management Plans existing for the
operation to minimise the risks of environmental
impacts.
- Standard Operating
Procedures for the transfer of hazardous materials and restocking
of Dangerous Goods existing on site to mitigate the risk of these
materials entering the environment.
FGO
- FGO operates under
and in compliance with a number of operating environmental plans,
which cover its environmental impacts and outputs as well as
reporting guidelines / frequencies.
- Various Reserve
inventories do not have current DMP / DWER licenses – though there
are no abnormal conditions / factors associated with these assets
which the competent person sees as potentially threatening to the
particular project.
- The operation is
frequently inspected by the regulatory authorities of DMP and DWER
with continual feedback on environmental best practice and
reporting results.
- Flood Management,
Inclement Weather and Traffic Management Plans existing for the
operation to minimise the risks of environmental
impacts.
- Standard Operating
Procedures for the transfer of hazardous materials and restocking
of Dangerous Goods existing on site to mitigate the risk of these
materials entering the environment.
HGO
- HGO operates under
and in compliance with a number of operating environmental plans,
which cover its environmental impacts and outputs as well as
reporting guidelines / frequencies.
- Various Reserve
inventories do not have current DMP / DWER licenses – though there
are no abnormal conditions / factors associated with these assets
which the competent person sees as potentially threatening to the
particular project.
- The operation is
frequently inspected by the regulatory authorities of DMP and DWER
with continual feedback on environmental best practice and
reporting results.
- Flood Management,
Inclement Weather and Traffic Management Plans existing for the
operation to minimise the risks of environmental
impacts.
- Standard Operating
Procedures for the transfer of hazardous materials and restocking
of Dangerous Goods existing on site to mitigate the risk of these
materials entering the environment.
MGO
- MGO operates under
and in compliance with a number of operating environmental plans,
which cover its environmental impacts and outputs as well as
reporting guidelines / frequencies.
- Various Reserve
inventories do not have current DMP / DWER licenses – though there
are no abnormal conditions / factors associated with these assets
which the competent person sees as potentially threatening to the
particular project.
- The operation is
frequently inspected by the regulatory authorities of DMP and DWER
with continual feedback on environmental best practice and
reporting results.
- Flood Management,
Inclement Weather and Traffic Management Plans existing for the
operation to minimise the risks of environmental
impacts.
- Standard Operating
Procedures for the transfer of hazardous materials and restocking
of Dangerous Goods existing on site to mitigate the risk of these
materials entering the environment.
|
Infrastructure
|
- The existence of
appropriate infrastructure: availability of land for plant
development, power, water, transportation (particularly for bulk
commodities), labour, accommodation; or the ease with which the
infrastructure can be provided or accessed.
|
BHO
- BHO is currently
active and have substantial infrastructure in place including a
large amount of underground infrastructure, major electrical,
ventilation and pumping networks.
- Airstrip facilities
are available at nearby Kambalda.
CGO
- CGO has an
operating plant and tailings storage facility, along with extensive
mechanical and electrical maintenance facilities.
- The site also
includes existing administration buildings as well as a 250-man
accommodation camp facility.
- Power is provided
by onsite diesel generation, with potable water sourced from nearby
bore water (post treatment).
- Communications and
roadways are existing.
- Airstrip facilities
are available at the local Cue airstrip (20km).
FGO
- FGO has an
operating plant and tailings storage facility, along with extensive
mechanical and electrical maintenance facilities.
- The site also
includes existing administration buildings as well as a 200-man
accommodation camp facility.
- Power is provided
by onsite diesel generation, with potable water sourced from nearby
bore water (post treatment).
- Communications and
roadways are existing.
- Airstrip facilities
are available on site.
HGO
- HGO is currently
active and have substantial infrastructure in place including a
large amount of underground infrastructure, major electrical,
ventilation and pumping networks. The main Higginsville location
has an operating CIL plant a fully equipped laboratory, extensive
workshop, administration facilities and a 350 person single person
quarters nearby.
- Infrastructure
required for open production is also in place.
- Airstrip facilities
are available at nearby Kambalda.
MGO
- MGO has an
operating plant and tailings storage facility, along with extensive
mechanical and electrical maintenance facilities.
- The site also
includes existing administration buildings as well as a 300-man
accommodation camp facility.
- Power is provided
by onsite diesel generation, with potable water sourced from nearby
bore water (post treatment).
- Communications and
roadways are existing.
- Airstrip facilities
are available at the local Meekatharra airstrip (15km).
|
Costs
|
- The derivation of,
or assumptions made, regarding projected capital costs in the
study.
- The methodology
used to estimate operating costs.
- Allowances made for
the content of deleterious elements.
- The source of
exchange rates used in the study.
- Derivation of
transportation charges.
- The basis for
forecasting or source of treatment and refining charges, penalties
for failure to meet specification, etc.
- The allowances made
for royalties payable, both Government and private.
|
BHO
- Processing costs
are based on actual cost profiles with variations existing between
the various oxide states.
- Site G&A and
portioned corporate overheads are included within the analysis
(based upon previous Budget years actuals).
- Mining costs are
derived primarily from the current contractor and owner-operator
cost profiles in the underground environment.
- For the underground
environment, if not site-specific mining rates are available, an
appropriately selected operating mine is used for the basis of cost
profiling.
- Geology and Grade
Control costs are incorporated in the overall cost profile and are
based upon previously reconciled Budgetary forecasts.
- Haulage costs used
are either contractual rates or if in the case where a mine has
none, a generic cost per tkm unit rate is utilised.
- Both state
government and private royalties are incorporated into costings as
appropriate.
CGO
- Processing costs
are based on actual cost profiles with variations existing between
the various oxide states.
- Site G&A and
portioned corporate overheads are included within the analysis
(based upon previous Budget years actuals).
- Mining costs are
derived primarily from the current contractor and owner-operator
cost profiles in the underground environment.
- For open pits where
no current mining cost profiles are available for a forecasted
Reserve, a historically 'validated' pit cost matrix is used – with
variation allowances for density, fuel price and gear
size.
- For the underground
environment, if not site-specific mining rates are available, an
appropriately selected operating mine is used for the basis of cost
profiling.
- Geology and Grade
Control costs are incorporated in the overall cost profile and are
based upon previously reconciled Budgetary forecasts.
- Haulage costs used
are either contractual rates or if in the case where a mine has
none, a generic cost per tkm unit rate is utilised.
- Both state
government and private royalties are incorporated into costings as
appropriate.
FGO
- Processing costs
are based on actual cost profiles with variations existing between
the various oxide states.
- Site G&A and
portioned corporate overheads are included within the analysis
(based upon previous Budget years actuals).
- Mining costs are
derived primarily from the current contractor and owner-operator
cost profiles in the underground environment.
- For open pits where
no current mining cost profiles are available for a forecasted
Reserve, a historically 'validated' pit cost matrix is used – with
variation allowances for density, fuel price and gear
size.
- For the underground
environment, if not site-specific mining rates are available, an
appropriately selected operating mine is used for the basis of cost
profiling.
- Geology and Grade
Control costs are incorporated in the overall cost profile and are
based upon previously reconciled Budgetary forecasts.
- Haulage costs used
are either contractual rates or if in the case where a mine has
none, a generic cost per tkm unit rate is utilised.
- Both state
government and private royalties are incorporated into costings as
appropriate.
HGO
- Processing costs
are based on actual cost profiles with variations existing between
the various oxide states.
- Site G&A and
portioned corporate overheads are included within the analysis
(based upon previous Budget years actuals).
- Mining costs are
derived primarily from the current contractor and owner-operator
cost profiles in the underground environment.
- For open pits where
no current mining cost profiles are available for a forecasted
Reserve, a historically 'validated' pit cost matrix is used – with
variation allowances for density, fuel price and gear
size.
- For the underground
environment, if not site-specific mining rates are available, an
appropriately selected operating mine is used for the basis of cost
profiling.
- Geology and Grade
Control costs are incorporated in the overall cost profile and are
based upon previously reconciled Budgetary forecasts.
- Haulage costs used
are either contractual rates or if in the case where a mine has
none, a generic cost per tkm unit rate is utilised.
- Both state
government and private royalties are incorporated into costings as
appropriate.
MGO
- Processing costs
are based on actual cost profiles with variations existing between
the various oxide states.
- Site G&A and
portioned corporate overheads are included within the analysis
(based upon previous Budget years actuals).
- Mining costs are
derived primarily from the current contractor and owner-operator
cost profiles in the underground environment.
- For open pits where
no current mining cost profiles are available for a forecasted
Reserve, a historically 'validated' pit cost matrix is used – with
variation allowances for density, fuel price and gear
size.
- For the underground
environment, if not site-specific mining rates are available, an
appropriately selected operating mine is used for the basis of cost
profiling.
- Geology and Grade
Control costs are incorporated in the overall cost profile and are
based upon previously reconciled Budgetary forecasts.
- Haulage costs used
are either contractual rates or if in the case where a mine has
none, a generic cost per tkm unit rate is utilised.
- Both state
government and private royalties are incorporated into costings as
appropriate.
|
Revenue
factors
|
- The derivation of,
or assumptions made regarding revenue factors including head grade,
metal or commodity price(s) exchange rates, transportation and
treatment charges, penalties, net smelter returns, etc.
- The derivation of
assumptions made of metal or commodity price(s), for the principal
metals, minerals and co-products.
|
- Mine Revenue, COGs,
open pit optimisation and royalty costs are based on the long-term
forecast of A$3,000/oz.
- No allowance is
made for silver by-products.
|
Market
assessment
|
- The demand, supply
and stock situation for the particular commodity, consumption
trends and factors likely to affect supply and demand into the
future.
- A customer and
competitor analysis along with the identification of likely market
windows for the product.
- Price and volume
forecasts and the basis for these forecasts.
- For industrial
minerals the customer specification, testing and acceptance
requirements prior to a supply contract.
|
- Detailed economic
studies of the gold market and future price estimates are
considered by Westgold and applied in the estimation of revenue,
cut-off grade analysis and future mine planning
decisions.
- There remains
strong demand and no apparent risk to the long-term demand for the
gold.
|
Economic
|
- The inputs to the
economic analysis to produce the net present value (NPV) in the
study, the source and confidence of these economic inputs including
estimated inflation, discount rate, etc.
- NPV ranges and
sensitivity to variations in the significant assumptions and
inputs.
|
- Each separate mine
(open pit, underground or stockpile) has been assessed on a
standard operating cash generating model. Capital costs have been
included thereafter to determine an economic outcome.
- Subsequently each
Operating centre (MGO, CGO and FGP) has had a Discounted Cash Flow
model constructed to further demonstrate the Reserve has a positive
economic outcome.
- A discount rate of
8% is allied in DCF modelling.
- No escalation of
costs and gold price is included.
- Sensitivity
analysis of key financial and physical parameters is applied to
future development projects.
|
Social
|
- The status of
agreements with key stakeholders and matters leading to social
licence to operate.
|
BHO
- BHO is fully
permitted and a major contributor to the local and regional
economy. It has no external pressures that impact its operation or
which could potentially jeopardise its continuous
operation.
CGO
- CGO is fully
permitted and a major contributor to the local and regional
economy. It has no external pressures that impact its operation or
which could potentially jeopardise its continuous
operation.
- As new open pits or
underground operations develop the site will require separate
environmental approvals from the different regulating
bodies.
- Where required, the
operation has a Native Title and Pastoral Agreement.
FGO
- FGO is fully
permitted and a major contributor to the local and regional
economy. It has no external pressures that impact its operation or
which could potentially jeopardise its continuous
operation.
- As new open pits or
underground operations develop the site will require separate
environmental approvals from the different regulating
bodies.
- Where required, the
operation has a Native Title and Pastoral Agreement.
HGO
- HGO is fully
permitted and a major contributor to the local and regional
economy. It has no external pressures that impact its operation or
which could potentially jeopardise its continuous
operation.
- •As new open pits
or underground operations develop the site will require separate
environmental approvals from the different regulating
bodies.
MGO
- MGO is fully
permitted and a major contributor to the local and regional
economy. It has no external pressures that impact its operation or
which could potentially jeopardise its continuous
operation.
- As new open pits or
underground operations develop the site will require separate
environmental approvals from the different regulating
bodies.
- Where required, the
operation has a Native Title and Pastoral Agreement.
|
Other
|
- To the extent
relevant, the impact of the following on the project and/or on the
estimation and classification of the Ore Reserves:
- Any identified
material naturally occurring risks.
- The status of
material legal agreements and marketing arrangements.
- The status of
governmental agreements and approvals critical to the viability of
the project, such as mineral tenement status, and government and
statutory approvals. There must be reasonable grounds to expect
that all necessary Government approvals will be received within the
timeframes anticipated in the Pre-Feasibility or Feasibility study.
Highlight and discuss the materiality of any unresolved matter that
is dependent on a third party on which extraction of the reserve is
contingent.
|
- BHO is an active
mining project.
- CGO is an active
mining project.
- FGO is an active
mining project.
- HGO is an active
mining project.
- MGO is an active
mining project.
|
Classification
|
- The basis for the
classification of the Ore Reserves into varying confidence
categories.
- Whether the result
appropriately reflects the Competent Person's view of the
deposit.
- The proportion of
Probable Ore Reserves that have been derived from Measured Mineral
Resources (if any).
|
- The basis for
classification of the Mineral Resource into different categories is
made in accordance with the recommendations of the JORC Code 2012.
Measured Mineral Resources have a high level of confidence and are
generally defined in three dimensions with accurately defined or
normally mineralised developed exposure. Indicated Mineral
Resources have a slightly lower level of confidence but contain
substantial drilling and are in most instances capitally developed
or well defined from a mining perspective. Inferred Mineral
Resources always contain significant geological evidence of
existence and are drilled, but not to the same density. There is no
classification of any Mineral Resources that isn't drilled or
defined by substantial physical sampling works.
- Some Measured
Resources have been classified as Proven and some are defined as
Probable Ore Reserves based on internal judgement of the mining,
geotechnical, processing and or cost profile estimates.
- No Indicated
Mineral Resources material has been converted into Proven Ore
Reserve.
- The resultant Ore
Reserve classification appropriately reflects the view of the
Competent Person.
|
Audits or
reviews
|
- The results of any
audits or reviews of Ore Reserve estimates.
|
- Ore Reserves
inventories and the use of appropriate modifying factors are
reviewed internally on an annual basis.
- Additionally, mine
design and cost profiles are regularly reviewed by WGX operational
quarterly reviews.
- Financial auditing
processes, Dataroom reviews for asset sales / purchases and
stockbroker analysis regularly 'truth test' the assumptions made on
Ore Reserve designs and assumptions.
|
Discussion of
relative accuracy/ confidence
|
- Where appropriate a
statement of the relative accuracy and confidence level in the Ore
Reserve estimate using an approach or procedure deemed appropriate
by the Competent Person. For example, the application of
statistical or geostatistical procedures to quantify the relative
accuracy of the reserve within stated confidence limits, or, if
such an approach is not deemed appropriate, a qualitative
discussion of the factors which could affect the relative accuracy
and confidence of the estimate.
- The statement
should specify whether it relates to global or local estimates,
and, if local, state the relevant tonnages, which should be
relevant to technical and economic evaluation. Documentation should
include assumptions made and the procedures used.
- Accuracy and
confidence discussions should extend to specific discussions of any
applied Modifying Factors that may have a material impact on Ore
Reserve viability, or for which there are remaining areas of
uncertainty at the current study stage.
- It is recognised
that this may not be possible or appropriate in all circumstances.
These statements of relative accuracy and confidence of the
estimate should be compared with production data, where
available.
|
- Whilst it should be
acknowledged that all Ore Reserves are based primarily upon an
estimate of contained insitu gold (the Mineral Resources Estimate),
it is the competent person's view that the consolidated Reserve
inventory is highly achievable in entirety.
- Given the entire
Ore Reserves inventory is within existing operations, with
budgetary style cost models and current contractual mining /
processing consumable rates, coupled with an extensive historical
knowledge / dataset of the Mineral Resources, it is the Competent
Person's view that the significant mining modifying factors (COGs,
geotechnical parameters and dilution ratio's) applied are
achievable and or within the limits of 10% sensitivity
analysis.
|
Appendix C – JORC 2012 Table 1– Nickel Division
SECTION 1: SAMPLING TECHNIQUES AND DATA
(Criteria in this section apply to all succeeding sections.)
Criteria
|
JORC Code
Explanation
|
Commentary
|
Sampling
techniques
|
- Nature and quality
of sampling (e.g. cut channels, random chips, or specific
specialised industry standard measurement tools appropriate to the
minerals under investigation, such as down hole gamma sondes, or
handheld XRF instruments, etc.). These examples should not be taken
as limiting the broad meaning of sampling.
- Include reference
to measures taken to ensure sample representivity and the
appropriate calibration of any measurement tools or systems
used.
- Aspects of the
determination of mineralisation that are Material to the Public
Report.
- In cases where
'industry standard' work has been done this would be relatively
simple (e.g. 'reverse circulation drilling was used to obtain 1 m
samples from which 3 kg was pulverised to produce a 30 g charge for
fire assay'). In other cases more explanation may be required, such
as where there is coarse gold that has inherent sampling problems.
Unusual commodities or mineralisation types (e.g. submarine
nodules) may warrant disclosure of detailed
information.
|
- Sampling of Ni is
almost exclusively from diamond core drilling completed from
underground platforms. Historical surface RC samples (completed by
WMC) intersect the mineralisation. HMR Drilling Services has
carried out underground diamond drilling at Beta Hunt since 2016
and are currently utilising a fleet of Erebus M90 mobile
underground diamond core rigs. Sampling is highly selective
according to the visual nickel mineralisation observed by the
geologist. Generally, sampling is between 0.1m to 1.2m intervals,
though some historical sample intervals are noted to
0.06m.
- Diamond drill core
is logged on site by geologists for lithology, alteration,
mineralisation, and structures. Structural measurements, alpha and
beta angles are taken on major lithological contacts, foliations,
veins, and major fault zones. Multiple specific gravity ("SG")
measurements are taken per hole in both ore and waste zones. Field
geotechnicians record the Rock Quality Designation ("RQD") measure
for every second drill hole. All drill holes are digitally
photographed.
- NQ2 drill holes
designated as resource definition or exploration are cut in half
with the top half of the core sent to the laboratory for analysis
and the other half placed back in the core tray. This is then
transferred onto pallets and moved to the core yard library. All
grade control drilling is sampled as whole core samples with a
maximum 1m interval.
|
Drilling
techniques
|
- Drill type (e.g.
core, reverse circulation, open-hole hammer, rotary air blast,
auger, Bangka, sonic, etc.) and details (e.g. core diameter, triple
or standard tube, depth of diamond tails, face-sampling bit or
other type, whether core is oriented and if so, by what method,
etc.).
|
- Drilling for Ni has
been completed at the deposit from 1974 to the present by various
companies and utilised predominantly diamond drilling of NQ2
diameter. All diamond core was oriented, as far as possible, and
oriented structures logged with alpha and beta angles. During the
drilling process the drillers mark on the end of each drill run the
'bottom of hole position' using a red chinagraph pencil. This
orientation mark forms the basis for orientating the drill core.
Orientation marks are usually placed at every 3m or 6m intervals
and correspond with the driller's run. A driller's run is marked by
a core block at the end of the run, the last piece of core before
each block will have the orientation mark on it. Electronic
orientation tools were used sporadically in 2018 and
2021/2022.
|
Drill sample
recovery
|
- Method of recording
and assessing core and chip sample recoveries and results
assessed.
- Measures taken to
maximise sample recovery and ensure representative nature of the
samples.
- Whether a
relationship exists between sample recovery and grade and whether
sample bias may have occurred due to preferential loss/gain of
fine/coarse material.
|
- Historical and
current practice ensures all diamond core intervals are measured
and recorded for rock quality designation (RQD) and core loss. Core
blocks are utilised and placed at 1m core runs in the core trays.
The average core recovery at the deposit is routinely
>95%.
- Drill rigs are
supervised by company geologists to ensure adequate sample returns
are being maintained.
- No bias has been
observed between sample recovery and grade.
|
Logging
|
- Whether core and
chip samples have been geologically and geotechnically logged to a
level of detail to support appropriate Mineral Resource estimation,
mining studies and metallurgical studies.
- Whether logging is
qualitative or quantitative in nature. Core (or costean, channel,
etc.) photography.
- The total length
and percentage of the relevant intersections logged
|
- Westgold
underground drill-holes are logged in detail for geology, veining,
alteration, mineralisation and structure. Core has been logged in
enough detail to allow for the relevant mineral resource estimation
techniques to be employed.
- Core is
photographed both wet and dry. All photos are stored on the
Company's servers, with the photographs from each hole contained
within separate folders.
- Development faces
are mapped geologically.
- Logging is both
quantitative and qualitative in nature.
- All holes are
logged completely, all faces are mapped completely.
|
Sub-sampling
techniques and sample preparation
|
- If core, whether
cut or sawn and whether quarter, half or all core
taken.
- If non-core,
whether riffled, tube sampled, rotary split, etc. and whether
sampled wet or dry.
- For all sample
types, the nature, quality and appropriateness of the sample
preparation technique.
- Quality control
procedures adopted for all sub-sampling stages to maximise
representivity of samples.
- Measures taken to
ensure that the sampling is representative of the in-situ material
collected, including for instance results for field
duplicate/second-half sampling.
- Whether sample
sizes are appropriate to the grain size of the material being
sampled.
|
- Diamond holes
designated as resource definition or exploration are cut in half
using a core saw, with the top half of the core sent to the
laboratory for analysis and the other half placed back in the core
tray. This is then transferred onto pallets and moved to the core
yard library. All grade control drilling is sampled as whole core
samples with a maximum 1m interval.
- Sample preparation
has been completed by SGS laboratory at either Perth or Kalgoorlie
facilities since 2016. Samples were dried and then crushed to 3mm
and then split to generate samples between 1kg to 2.8kg. One split
is forwarded to milling where it is pulverised to 90% passing 75um,
the second split is retained as a crushed sample.
- Laboratory internal
QA standards include replicates, split samples, and blanks which
are randomly added to job batches.
- The sample size is
considered appropriate for the grain size of the material being
sampled.
|
Quality of assay
data and laboratory tests
|
- The nature, quality
and appropriateness of the assaying and laboratory procedures used
and whether the technique is considered partial or
total.
- For geophysical
tools, spectrometers, handheld XRF instruments, etc., the
parameters used in determining the analysis including instrument
make and model, reading times, calibrations factors applied and
their derivation, etc.
- Nature of quality
control procedures adopted (e.g. standards, blanks, duplicates,
external laboratory checks) and whether acceptable levels of
accuracy (i.e. lack of bias) and precision have been
established.
|
- Prior to March 2016
nickel samples were analysed at Bureau Veritas Laboratory
(KalAssay). A 0.2g subsample was digested using a mixed acid before
ICP analysis. Post 2016, analyses have been completed by SGS
Laboratory in Perth where a 0.2g subsample of pulverised material
is taken for ICP 4 acid digest and final analysis using ICP-OES.
This process is considered appropriate. The acid digest is with
nitric, hydrochloric, hydrofluoric, and perchloric acids to effect
as near total solubility of the sample as possible.
- QA/QC processes are
controlled by written procedures and includes the use of certified
reference materials and coarse blanks.
- Certified Standards
for gold and nickel were provided by Ore Research & Exploration
Pty Ltd ("OREAS") between 2014 and June 2016. Geostats Ni purpose
reference standard samples were introduced in June 2020 and
effectively replaced the OREAS reference samples. Coarse blank is
Bunbury Basalt sourced from Gannet Holdings Pty Ltd.
- No significant
QA/QC issues have arisen in recent drilling results. Routine audit
visits to the laboratories are completed by senior geology
personnel.
|
Verification of
sampling and assaying
|
- The verification of
significant intersections by either independent or alternative
company personnel.
- The use of twinned
holes.
- Documentation of
primary data, data entry procedures, data verification, data
storage (physical and electronic) protocols.
- Discuss any
adjustment to assay data.
|
- Significant assay
results are verified by senior geologists through visual inspection
of retained core (or viewing core photos where whole core was
submitted for assay). If significant intersections are not
supported by visual checks, samples are re-assayed to confirm
original results.
- Nickel lenses are
defined by close spaced grade control drilling so twinned holes are
not require.
- Primary data is
collected utilising LogChief. The information is imported into a
SQL database server and verified.
- All data used in
the calculation of resources and reserves are compiled in databases
which are overseen and validated by Senior Geologists.
- No adjustments have
been made to any assay data.
|
Location of data
points
|
- Accuracy and
quality of surveys used to locate drill holes (collar and down-hole
surveys), trenches, mine workings and other locations used in
Mineral Resource estimation.
-
- Specification of
the grid system used.
- Quality and
adequacy of topographic control.
|
- Drill collars were
historically surveyed by the mine survey department using
electronic total station equipment. Single shot downhole survey
measurements are taken at 15m and 30m, then every 30m thereafter.
Multi-shot surveys are conducted at the completion of each hole at
3m intervals. During 2023, UG holes utilise a DeviGyro OX tool to
eliminate magnetic interference. This method has been used for
surface drilling since 2021. The Gyro recordings are coupled with
cloud based systems to facilitate electronic loading directly into
the database eliminating manual entry.
- All drilling and
resource estimation is preferentially undertaken in local Mine
Grid.
- Topographic control
is generated from a combination of remote sensing methods and
ground-based surveys. This methodology is adequate for the
resources in question.
|
Data spacing and
distribution
|
- Data spacing for
reporting of Exploration Results.
- Whether the data
spacing and distribution is sufficient to establish the degree of
geological and grade continuity appropriate for the Mineral
Resource and Ore Reserve estimation procedure(s) and
classifications applied.
- Whether sample
compositing has been applied.
|
- The structural
complexity of nickel mineralisation at Beta Hunt is reflected by
closer spaced drill patterns. Nickel Mineral Resources are based on
an initial 30m by 30m down to 10m x 10m spaced drill hole pattern.
Subsequent drilling focuses on stepping out from a significant
intercept to define any attenuated pinch out, basalt roll-over or
fault offsetting the nickel mineralisation.
- The data spacing
and distribution is sufficient to establish geological and grade
continuity appropriate to the classification applied. The nickel
lenses are highly visible and underground mapping confirms lens
geometry and extent.
- Sampling of core
varies between 0.2m to 1.2m or to geological contacts. Samples are
not composited when submitted for analysis. Sample compositing (to
0.7m or 0.8m) was applied at Kappa and Delta lenses for estimation.
All other nickel lenses utilised an 2D linear accumulation variable
composited as a single full zone intercept.
|
Orientation of data
in relation to geological structure
|
- Whether the
orientation of sampling achieves unbiased sampling of possible
structures and the extent to which this is known, considering the
deposit type.
- If the relationship
between the drilling orientation and the orientation of key
mineralised structures is considered to have introduced a sampling
bias, this should be assessed and reported if material.
|
- Drilling
intersections are nominally designed to be normal to the nickel
lens as far as underground infrastructure constraints allow. Visual
observation of the flat lying lens geometry during air leg mining
verifies the sample orientation is effective.
- It is not
considered that drilling orientation has introduced an appreciable
sampling bias.
|
Sample
security
|
- The measures taken
to ensure sample security.
|
- Sample security
protocols in place aim to maintain the chain of custody of samples
to prevent inadvertent contamination or mixing of samples, and to
render active tampering as difficult as possible. Sampling is
conducted by Westgold staff or contract employees under the
supervision of site geologists. The work area and sample storage
areas are covered by general site security video surveillance.
Samples bagged in plastic sacks are collected by the laboratory
transport contractor and driven to the Perth or Kalgoorlie
laboratories.
|
Audits or
reviews
|
- The results of any
audits or reviews of sampling techniques and data
|
- Site generated
resources and reserves and the parent geological data is routinely
reviewed by the Westgold Corporate technical team. Routine visits
to the certified laboratories are completed by senior
personnel.
|
SECTION 2: REPORTING OF EXPLORATION RESULTS
(Criteria listed in the preceding section also apply to this
section.)
Criteria
|
JORC Code
Explanation
|
Commentary
|
Mineral tenement and
land tenure status
|
- Type, reference
name/number, location and ownership including agreements or
material issues with third parties such as joint ventures,
partnerships, overriding royalties, native title interests,
historical sites, wilderness or national park and environmental
settings.
- The security of the
tenure held at the time of reporting along with any known
impediments to obtaining a licence to operate in the
area.
|
- Beta Hunt is an
underground mine located 2km southeast of Kambalda and 60km south
of Kalgoorlie in Western Australia. Westgold owns the mining rights
for the Beta Hunt Mine through a sub-lease agreement with
Goldfield's St Ives Gold Mining Centre (SIGMC), which gives Karora
the right to explore for and mine nickel and gold within the Beta
Hunt sub-lease area. The Beta Hunt sub-lease covers partial mining
leases for a total area of 960.4ha.
- SIGMC is the
registered holder of the mineral leases that are all situated on
unallocated Crown Land.
- The main components
of the existing surface infrastructure are situated on mining
leases M15/1529 and M15/1531. The existing underground
infrastructure at Beta Hunt is located within mineral leases
M15/1529, M15/1531, M15/1512, M15/1516, M15/1517, M15/1526,
M15/1518, M15/1527, M15/1705, M15/1702 and M15/1628.
- Westgold pays the
following royalties on nickel production:
- A royalty to the
state government equal to 2.5% of the royalty value of nickel metal
in nickel containing material sold; and
- Royalties to third
parties equal to 4.5% of payable nickel when prices are less than
$17,500/t, and 6.5% when prices are greater than or equal to
$17,500/t (capped at $16,000,000).
- On an annual basis,
Westgold must pay 20% of the following to SIGMC:
- All rent payable by
SIGMC in respect of each sub-lease tenement;
- All local
government rates; and
- All land or
property taxes.
- The tenure is
currently in good standing.
- There are no known
issues regarding security of tenure.
- There are no known
impediments to continued operation.
- WGX operates in
accordance with all environmental conditions set down as conditions
for grant of the leases.
|
Exploration done by
other parties
|
- Acknowledgment and
appraisal of exploration by other parties
|
- Western Mining
Corporation (WMC) first intersected nickel sulphide mineralisation
at Red Hill in January 1966 after drilling to test a gossan outcrop
grading 1% Ni and 0.3% Cu. This discovery led to delineation of the
Kambalda Nickel Field where WMC identified 24 deposits hosted in
structures that include the Kambalda Dome, Widgiemooltha Dome and
Golden Ridge Greenstone Belt. The Hunt nickel deposit was
discovered by WMC in March 1970, during routine traverse drilling
over the south end of the Kambalda Dome. The discovery hole, KD262,
intersected 2.0m grading 6.98% Ni. Portal excavation for a decline
access began in June 1973. While the decline was being developed,
the Hunt orebody was accessed from the neighbouring Silver Lake
mine, via a 1.15km cross-cut on 700 level.
- Westgold work has
generally confirmed the veracity of historic exploration
data.
|
Geology
|
- Deposit type,
geological setting and style of mineralisation.
|
- The Kambalda–St
Ives region forms part of the Norseman–Wiluna greenstone belt which
comprises regionally extensive volcano-sedimentary packages. These
were extruded and deposited in an extensional environment at about
2,700–2,660 Ma. The mining district is underlain by a
north-northwest trending corridor of basalt and komatiite rocks
termed the Kambalda Dome. The iron-nickel mineralisation is
normally accumulated within the thick Silver Lake Member of the
Kambalda Komatiite Formation above, or on the contact with the dome
structured Lunnon Basalt.
- Nickel
mineralisation is hosted by talc-carbonate and serpentine altered
ultramafic rocks. The deposits are ribbon-like bodies of massive,
matrix and disseminated sulphides varying from 0.5 m to 4.0m in
true thickness but averaging between 1.0 m and 2.0 m. Down dip
widths range from 40m to 100m, and the grade of nickel ranges from
below 1% to 20%. Major minerals in the massive and disseminated
ores are pyrrhotite, pentlandite, pyrite, chalcopyrite, magnetite
and chromite, with rare millerite and heazlewoodite generally
confined to disseminated mineralisation. The hangingwall
mineralisation tends to be higher tenor than the contact material.
The range of massive ore grades in the hangingwall is between 10%
Ni and 20% Ni while the range for contact ore is between 9% Ni and
12% Ni. The hangingwall mineralogy varies between an
antigorite/chlorite to a talc/magnesite assemblage. The basalt
mineralogy appears to conform to the amphibole, chlorite,
plagioclase plus or minus biotite.
- Unlike other nickel
deposits on the Kambalda Dome, the Beta Hunt system displays
complex contact morphologies, which leads to irregular ore
positions. The overall plunge of the deposits is shallow in a
southeast direction, with an overall plunge length in excess of
1km. The individual lode positions have a strike length averaging
40m and a dip extent averaging 10m. The geometry of these lode
positions vary in dip from 10° to the west to 80° to the east. The
mineralisation within these lode positions is highly variable
ranging from a completely barren contact to zones where the
mineralisation is in excess of 10m in true thickness.
- The Hunt and Lunnon
shoots are separated from the Beta and East Alpha deposits by the
Alpha Island Fault. Hunt and Beta both occur on the moderately
dipping western limb of the Kambalda Dome and are thought to be
analogous. Similarly, Lunnon and East Alpha occur on the steeply
dipping eastern limb of the dome and also have similar
characteristics.
|
Drill hole
Information
|
- A summary of all
information material to the understanding of the exploration
results including a tabulation of the following information for all
Material drill holes:
- easting and
northing of the drill hole collar
- elevation or RL
(Reduced Level – elevation above sea level in metres) of the drill
hole collar
- dip and azimuth of
the hole
- down hole length
and interception depth
- hole
length.
- If the exclusion of
this information is justified on the basis that the information is
not Material and this exclusion does not detract from the
understanding of the report, the Competent Person should clearly
explain why this is the case.
|
- Exploration results
are not being reported in this release.
|
Data aggregation
methods
|
- In reporting
Exploration Results, weighting averaging techniques, maximum and/or
minimum grade truncations (e.g., cutting of high grades) and
cut-off grades are usually Material and should be
stated.
- Where aggregate
intercepts incorporate short lengths of high-grade results and
longer lengths of low-grade results, the procedure used for such
aggregation should be stated and some typical examples of such
aggregations should be shown in detail.
- The assumptions
used for any reporting of metal equivalent values should be clearly
stated.
|
- Exploration results
are not being reported in this release.
|
Relationship
between mineralisation widths and intercept
lengths
|
- These relationships
are particularly important in the reporting of Exploration
Results.
- If the geometry of
the mineralisation with respect to the drill hole angle is known,
its nature should be reported.
- If it is not known
and only the down hole lengths are reported, there should be a
clear statement to this effect (e.g., 'down hole length, true width
not known').
|
- Exploration results
are not being reported in this release.
|
Diagrams
|
- Appropriate maps
and sections (with scales) and tabulations of intercepts should be
included for any significant discovery being reported These should
include, but not be limited to a plan view of drill hole collar
locations and appropriate sectional views.
|
- Exploration results
are not being reported in this release.
|
Balanced
reporting
|
- Where comprehensive
reporting of all Exploration Results is not practicable,
representative reporting of both low and high grades and/or widths
should be practiced to avoid misleading reporting of Exploration
Results.
|
- Exploration results
are not being reported in this release.
|
Other substantive
exploration data
|
- Other exploration
data, if meaningful and material, should be reported including (but
not limited to): geological observations; geophysical survey
results; geochemical survey results; bulk samples – size and method
of treatment; metallurgical test results; bulk density,
groundwater, geotechnical and rock characteristics; potential
deleterious or contaminating substances.
|
- Exploration results
are not being reported in this release.
|
Further
work
|
- The nature and
scale of planned further work (e.g. tests for lateral extensions or
depth extensions or large-scale step-out drilling).
- Diagrams clearly
highlighting the areas of possible extensions, including the main
geological interpretations and future drilling areas, provided this
information is not commercially sensitive.
|
- Ongoing underground
exploration activities will be undertaken to support continuing
mining activities at Westgold Gold Operations.
|
SECTION 3: ESTIMATION AND REPORTING OF MINERAL
RESOURCES
(Criteria listed in section 1, and where relevant in section 2,
also apply to this section.)
Criteria
|
JORC Code
Explanation
|
Commentary
|
Database
integrity
|
- Measures taken to
ensure that data has not been corrupted by, for example,
transcription or keying errors, between its initial collection and
its use for Mineral Resource estimation purposes.
- Data validation
procedures used.
|
- The database used
for the estimation was extracted from the Westgold's DataShed
database management system stored on a secure SQL
server.
- As new data is
acquired it passes through a validation approval system designed to
pick up any significant errors before the information is loaded
into the master database.
|
Site
visits
|
- Comment on any site
visits undertaken by the Competent Person and the outcome of those
visits.
- If no site visits
have been undertaken indicate why this is the case.
|
- Mr. Russell visits
Westgold Gold Operations regularly.
|
Geological
interpretation
|
- Confidence in
(or conversely, the uncertainty of) the geological interpretation
of the mineral deposit.
- Nature of the data
used and of any assumptions made.
- The effect, if any,
of alternative interpretations on Mineral Resource
estimation.
- The use of
geology in guiding and controlling Mineral Resource
estimation.
- The factors
affecting continuity both of grade and geology.
|
- Confidence in the
interpretations is high as the Ni sulphides have been mined since
1974 and the structural setting is well understood. Mineralisation
is hosted within and adjacent to volcanic channels that sit at the
stratigraphic base of the Kambalda Komatiite. Nickel sulphides are
within narrow troughs that plunge gently to the south.
- The mineralisation
was interpreted using diamond core drilled primarily from
underground locations
- The current
interpretations have been visually validated through underground
mining so alternative interpretations are not considered
viable.
- Geological logging
of the ultramafic / basalt contact, and the visible Ni sulphides is
used to define the mineralisation wireframes used in the Mineral
Resource estimation.
- Geological matrixes
were established to assist with interpretation and construction of
the estimation domains.
- The Ni deposits
occur within troughs on both the east and west limbs of the
Kambalda Dome. The deposits are ribbon-like bodies of massive,
matrix and disseminated sulphides that occur at the base of the
silver Lake Member on the contact with the Lunnon Basalt. The
massive and disseminated lodes tend to be higher tenor than the
contact material.
|
Dimensions
|
- The extent and
variability of the Mineral Resource expressed as length (along
strike or otherwise), plan width, and depth below surface to the
upper and lower limits of the Mineral Resource.
|
- Unlike other nickel
deposits on the Kambalda Dome, the Beta Hunt system displays
complex contact morphologies, which leads to irregular lode
positions. The overall plunge of the deposits is shallow in a
southeast direction, with an overall plunge length in excess of
1km. The individual lode positions have a strike length averaging
40m and a dip extent averaging 10m. The geometry of these lode
positions varies in dip from 10° to the west to 80° to the east.
The mineralisation within these lode positions is highly variable
ranging from a completely barren contact to zones where the
mineralisation is in excess of 10m in true thickness. The Ni
deposits predominantly vary from 0.5m to 4m true thickness but
average between 1m and 2m. Down dip widths range from 40m to 100m.
The depth at which the Ni mineralisation occurs along the UM/Basalt
contact varies from approximately 650m to 820m in depth from
surface.
|
Estimation and
modelling techniques.
|
- The nature and
appropriateness of the estimation technique(s) applied and key
assumptions, including treatment of extreme grade values,
domaining, interpolation parameters, maximum distance of
extrapolation from data points.
- The availability of
check estimates, previous estimates and/or mine production records
and whether the Mineral Resource estimate takes appropriate account
of such data.
- The assumptions
made regarding recovery of by-products.
- Estimation of
deleterious elements or other non-grade variables of economic
significance (e.g. sulphur for acid mine drainage
characterisation).
- In the case of
block model interpolation, the block size in relation to the
average sample spacing and the search employed.
- Any assumptions
behind modelling of selective mining units.
- Any assumptions
about correlation between variables.
- The process of
validation, the checking process used, the comparison of model data
to drillhole data, and use of reconciliation data if
available.
|
- The Ni sulphides
display lenticular geometries and are concentrated along linear
channels that overlie gold-bearing shears in the Lunnon Basalt. The
process of modelling the mineralised lenses involved a review of
the ultramafic contact while stepping through the drill data and
digitising polygons to suit the geometry of the nickel sulphides on
each section. Sections were orientated perpendicular to the strike
of the mineralisation and separated by distances to suit the
spacing of fans of drill holes and locations of structurally
related disruptions in the continuity of the geology. Numerous
porphyry dykes of varying composition from granite through to
diorite and granodiorite break up the nickel mineralisation and
effectively stope out the nickel-bearing sulphides. The interpreted
lenses are modelled to account for the porphyry intrusions so that
mineralisation does not extend into areas of waste. Mineralisation
domains were identified using geological characteristics (logged
nickel sulphides ranging from massive to matrix and blebby), and
intervals within interpreted domains captured the full sequence of
economic nickel sulphide profile (from the massive sulphide through
matrix and included blebby sulphides).
- While each of the
nickel sulphide deposits and each mineralised body was estimated
individually, the deposits were subdivided into domains for
geostatistical purposes. The domains were defined visually such
that logically grouped lenses tend to have common stratigraphic
positions and mineralisation characteristics and do not overlap in
space. Drillhole samples were flagged with the mineralisation
wireframes. Top-cuts were applied to high grade outliers for Au,
As, and Cu within each grouped domain by analysing log probability
plots, histograms, and mean/variance plots.
- Estimations was
completed for Ni, Au, As, Co, Cu, Fe, MgO, S, and
density.
- Variograms were
modelled on the accumulation "metal" variable (vertical thickness
multiplied by grades) for all elements, using the intermediate
stage 1 m composite data. Micromine software was used for
geostatistical analysis. For Kappa and Delta, variograms were
modelled using the 0.8m or 0.7m composites for the various elements
within each domain, using Supervisor software.
- Three-dimensional,
non-rotated block volume models were created for use in grade
estimation and sized to encompass each of the nickel sulphide
deposits. No waste background model was created. The models assume
underground mining by very selective methods, using airleg miners
where required. As the lodes are very narrow, usually averaging
less than 2m horizontal width, it would be unlikely that selective
mining would occur across their width. Therefore, a seam model was
chosen to represent their volume. For the relatively flat-lying
deposits, a single block spans the vertical (Z) width of the
zones.
- The selection of
appropriate block sizes took into consideration the geometry of the
domains to be modelled, the local drillhole spacing and the strike
and dip of the domains. The narrow lode domains had parent cell
dimensions set to 10m x 10m in the northing and easting directions
for all modelled lenses. The dimensions across the width of the
lenses are infinitely variable in vertical direction to allow for
accurate definition of the variable width in each lens using a
single cell. For the Kappa and Delta lenses, a parent block size
was set to 2m (X) by 5m (Y) by 5m (Z) with sub-celling to 0.5m (X)
by 1.25 (Y) by 1.25m (Z).
- Lode geometries are
generally very narrow. For this reason, an estimation methodology
using two-dimensional linear accumulation was selected for
estimation of each mineralised lode. The zone samples were
composited to single, full zone width intercepts having variable
lengths according to the width of the mineralisation and angle of
intersection. Composited full zone intercept widths do not
necessarily represent the true widths of the mineralised zones. To
calculate true and vertical widths, local orientations (dip and dip
direction) of the mineralisation were assigned to the composite
intervals based on the mineralisation wireframes. Dip and dip
direction values were calculated for each triangle in the wireframe
models, and then interpolated into the sample points using the
nearest neighbour ("NN") method. From this, the composite
interval's true thickness, vertical thickness and horizontal
thickness were calculated and visually checked. Accumulation
variables were calculated for each modelled element. Two lenses at
the East Alpha deposit were modelled using 3D wireframes and
ordinary kriging interpolation using 0.8m composites (Kappa) and
0.7m (Delta).
- For all Ni
deposits, except the Kappa and Delta lenses, a base search ellipse
equal to the long ranges for each deposit was used. The first
search ellipse employed two-thirds of the base search parameters.
The second and all the subsequent interpolation runs used a search
ellipse multiplier to the search axes, which was started from 1 and
incremented by 1 until all cells were informed with all estimated
grades. All accumulations and vertical thicknesses were initially
estimated in all sub-cells, and then volume weighted average values
were calculated within the 10m x 10m parent cells. When model cells
were estimated using search radii that were not greater than twice
the long ranges along the horizontal axes, the minimum and maximum
composite search parameters for block estimates used a minimum of
four and a maximum of six samples. No restrictions were applied for
drillhole numbers used in the estimate as all samples were
composited to the entire mineralised intersections. No sectors were
employed. The degree of discretization was 5 x 5 x 5 points. The
grade estimation in the centre of the block consisted of the simple
average value of the estimated points throughout the block
volume.
- For the Kappa and
Delta lenses, a single estimation pass was used with a search
distance set to 50m and the search ellipse orientated along the
geometry of the lode. Discretisation was set to 4 x 5 x 5 (XYZ). A
minimum of 5 samples and maximum of 15 was applied.
- A correlation
exists between Ni and density, and this was used to calculate
regression formulae for estimation which were then applied to all
composited intervals. The resultant estimated density values were
interpolated into the block model using ordinary kriging algorithm
and semi variogram models generated for nickel grades. No bulk
density data was available for Beta Central. A regression formula
was generated for combined composites at B30, B40, and Gamma, and a
formula derived for the Beta West and East Alpha
composites.
- The Mineral
Resource is depleted for mining voids and subsequently classified
in line with JORC guidelines utilising a combination of various
estimation derived parameters and geological / mining
knowledge.
- Model validation of
grade estimates was completed by visual checks on screen in
cross-section and plan view to ensure that block model grades
honoured the grade of the composites. A statistical comparison of
sample vs block grades was tabulated and swath plots generated in
various directions. Model performance is measured against end of
month reconciliations.
|
Moisture
|
- Whether the
tonnages are estimated on a dry basis or with natural moisture, and
the method of determination of the moisture content.
|
- Tonnage estimates
are dry tonnes.
|
Cut-off
parameters
|
- The basis of the
adopted cut-off grade(s) or quality parameters applied.
|
- The Ni Mineral
Resource is reported within proximity to underground development
and nominal 1% Ni lower cut-off grade for the nickel sulphide
mineralisation.
|
Mining factors or
assumptions
|
- Assumptions made
regarding possible mining methods, minimum mining dimensions and
internal (or, if applicable, external) mining dilution. It is
always necessary as part of the process of determining reasonable
prospects for eventual economic extraction to consider potential
mining methods, but the assumptions made regarding mining methods
and parameters when estimating Mineral Resources may not always be
rigorous. Where this is the case, this should be reported with an
explanation of the basis of the mining assumptions
made.
|
- Beta Hunt is an
underground mine accessed from established portals and declines.
The mine commenced operation in 1974, mining both nickel and gold
over extended periods. Mining is via flat back or air leg utilising
single boom jumbo and air leg miner. Flat back mining operates on
top of waste fill placed on the previous level. Approximately 0.5m
of waste in the floor is removed on completion of mining to ensure
full recovery of the nickel.
- No mining dilution
or ore loss has been modelled in the resource model or applied to
the reported Mineral Resource.
|
Metallurgical
factors or assumptions
|
- The basis for
assumptions or predictions regarding metallurgical amenability. It
is always necessary as part of the process of determining
reasonable prospects for eventual economic extraction to consider
potential metallurgical methods, but the assumptions regarding
metallurgical treatment processes and parameters made when
reporting Mineral Resources may not always be rigorous. Where this
is the case, this should be reported with an explanation of the
basis of the metallurgical assumptions made.
|
- Nickel
mineralisation processing is covered by the Ore Tolling and
Concentrate Purchase Agreement (OTCPA) with BHP. Material is
blended with nickel ores from other mines, and the metallurgical
recovery credited to Beta Hunt is based on the mineralisation
grade. The Kambalda Nickel Concentrator (KNC) is the delivery point
for Beta Hunt ore under the OTCPA.
|
Environmental
factors or assumptions
|
- Assumptions made
regarding possible waste and process residue disposal options. It
is always necessary as part of the process of determining
reasonable prospects for eventual economic extraction to consider
the potential environmental impacts of the mining and processing
operation. While at this stage the determination of potential
environmental impacts, particularly for a greenfields project, may
not always be well advanced, the status of early consideration of
these potential environmental impacts should be reported. Where
these aspects have not been considered this should be reported with
an explanation of the environmental assumptions made.
|
- Westgold operates
in accordance with all environmental conditions set down as
conditions for grant of the respective leases. Beta Hunt is an
operating underground mine that is in possession of all required
permits. Westgold owns and operates Beta Hunt through a sub-lease
agreement with SIGMC. The environmental permitting and compliance
requirements for mining operations on the sub-lease tenements are
the responsibility of Westgold under the sub-lease
arrangement.
|
Bulk
density
|
- Whether assumed or
determined. If assumed, the basis for the assumptions. If
determined, the method used, whether wet or dry, the frequency of
the measurements, the nature, size and representativeness of the
samples.
- The bulk density
for bulk material must have been measured by methods that
adequately account for void spaces (vugs, porosity, etc.), moisture
and differences between rock and alteration zones within the
deposit.
- Discuss assumptions
for bulk density estimates used in the evaluation process of the
different materials.
|
- A large suite of
bulk density determinations has been carried out across the project
areas. All raw sample intervals within the mineralised zones that
had both Ni grades and density measurements were used to calculate
regression formulae which were then applied to all composited
intervals. The resultant estimated density values were interpolated
into the block model using ordinary kriging algorithm and semi
variogram models generated for nickel grades.
- A significant past
mining history has validated the assumptions made surrounding bulk
density.
|
Classification
|
- The basis for the
classification of the Mineral Resources into varying confidence
categories.
- Whether appropriate
account has been taken of all relevant factors (i.e. relative
confidence in tonnage/grade estimations, reliability of input data,
confidence in continuity of geology and metal values, quality,
quantity and distribution of the data).
- Whether the result
appropriately reflects the Competent Person's view of the
deposit.
|
- Mineral Resources
are classified in line with JORC guidelines utilising a combination
of various estimation derived parameters, input data and geological
/ mining knowledge.
- This approach
considers all relevant factors and reflects the Competent Person's
view of the deposit.
|
Audits or
reviews
|
- The results of any
audits or reviews of Mineral Resource estimates.
|
- Resource estimates
are peer reviewed by the Corporate technical team.
|
Discussion of
relative accuracy/ confidence
|
- Where appropriate a
statement of the relative accuracy and confidence level in the
Mineral Resource estimate using an approach or procedure deemed
appropriate by the Competent Person. For example, the application
of statistical or geostatistical procedures to quantify the
relative accuracy of the resource within stated confidence limits,
or, if such an approach is not deemed appropriate, a qualitative
discussion of the factors that could affect the relative accuracy
and confidence of the estimate.
- The statement
should specify whether it relates to global or local estimates,
and, if local, state the relevant tonnages, which should be
relevant to technical and economic evaluation. Documentation should
include assumptions made and the procedures used.
- These statements of
relative accuracy and confidence of the estimate should be compared
with production data, where available.
|
- The high quality of
input data, and robust knowledge of the structural emplacement of
Ni at Beta Hunt provides confidence in the Mineral Resource
estimate. Ni lenses are mined via air leg which provides
flexibility for mining diverse geometries which are highly visible.
All currently reported resources estimates are representative on
both a global and local scale.
- A continuing
history of mining with good reconciliation of mine claimed to mill
recovered provides confidence in the accuracy of the
estimates.
|
SECTION 4: ESTIMATION AND REPORTING OF ORE RESERVES
(Criteria listed in section 1, and where relevant in sections 2
and 3, also apply to this section.)
Criteria
|
JORC Code
Explanation
|
Commentary
|
Mineral Resource
estimate for conversion to Ore Reserves
|
- Description of the
Mineral Resource estimate used as a basis for the conversion to an
Ore Reserve.
- Clear statement as
to whether the Mineral Resources are reported additional to, or
inclusive of, the Ore Reserves.
|
- No nickel Ore
Reserve is stated in this release.
|
Site
visits
|
- Comment on any site
visits undertaken by the Competent Person and the outcome of those
visits.
- If no site visits
have been undertaken indicate why this is the case.
|
- No nickel Ore
Reserve is stated in this release.
|
Study
status
|
- The type and level
of study undertaken to enable Mineral Resources to be converted to
Ore Reserves.
- The Code requires
that a study to at least Pre-Feasibility Study level has been
undertaken to convert Mineral Resources to Ore Reserves. Such
studies will have been carried out and will have determined a mine
plan that is technically achievable and economically viable, and
that material Modifying Factors have been considered
|
- No nickel Ore
Reserve is stated in this release.
|
Cut-off
parameters
|
- The basis of the
cut-off grade(s) or quality parameters applied.
|
- No nickel Ore
Reserve is stated in this release.
|
Mining factors or
assumptions
|
- The method and
assumptions used as reported in the Pre-Feasibility or Feasibility
Study to convert the Mineral Resource to an Ore Reserve (i.e.
either by application of appropriate factors by optimisation or by
preliminary or detailed design).
- The choice, nature
and appropriateness of the selected mining method(s) and other
mining parameters including associated design issues such as
pre-strip, access, etc.
- The assumptions
made regarding geotechnical parameters (e.g. pit slopes, stope
sizes, etc.), grade control and pre-production
drilling.
- The major
assumptions made and Mineral Resource model used for pit and stope
optimisation (if appropriate).
- The mining dilution
factors used.
- The mining recovery
factors used.
- Any minimum mining
widths used.
- The manner in which
Inferred Mineral Resources are utilised in mining studies and the
sensitivity of the outcome to their inclusion.
- The infrastructure
requirements of the selected mining methods.
|
|
|
Metallurgical
factors or assumptions
|
- The metallurgical
process proposed and the appropriateness of that process to the
style of mineralisation.
- Whether the
metallurgical process is well-tested technology or novel in
nature.
- The nature, amount
and representativeness of metallurgical test work undertaken, the
nature of the metallurgical domaining applied and the corresponding
metallurgical recovery factors applied.
- Any assumptions or
allowances made for deleterious elements.
- The existence of
any bulk sample or pilot scale test work and the degree to which
such samples are considered representative of the orebody as a
whole.
- For minerals that
are defined by a specification, has the ore reserve estimation been
based on the appropriate mineralogy to meet the
specifications?
|
- No nickel Ore
Reserve is stated in this release.
|
|
Environmental
|
- The status of
studies of potential environmental impacts of the mining and
processing operation. Details of waste rock characterisation and
the consideration of potential sites, status of design options
considered and, where applicable, the status of approvals for
process residue storage and waste dumps should be
reported.
|
- No nickel Ore
Reserve is stated in this release.
|
|
Infrastructure
|
- The existence of
appropriate infrastructure: availability of land for plant
development, power, water, transportation (particularly for bulk
commodities), labour, accommodation; or the ease with which the
infrastructure can be provided or accessed.
|
- No nickel Ore
Reserve is stated in this release.
|
Costs
|
- The derivation of,
or assumptions made, regarding projected capital costs in the
study.
- The methodology
used to estimate operating costs.
- Allowances made for
the content of deleterious elements.
- The source of
exchange rates used in the study.
- Derivation of
transportation charges.
- The basis for
forecasting or source of treatment and refining charges, penalties
for failure to meet specification, etc.
- The allowances made
for royalties payable, both Government and private.
|
- No nickel Ore
Reserve is stated in this release.
|
Revenue
factors
|
- The derivation of,
or assumptions made regarding revenue factors including head grade,
metal or commodity price(s) exchange rates, transportation and
treatment charges, penalties, net smelter returns, etc.
- The derivation of
assumptions made of metal or commodity price(s), for the principal
metals, minerals and co-products.
|
- No nickel Ore
Reserve is stated in this release.
|
Market
assessment
|
- The demand, supply
and stock situation for the particular commodity, consumption
trends and factors likely to affect supply and demand into the
future.
- A customer and
competitor analysis along with the identification of likely market
windows for the product.
- Price and volume
forecasts and the basis for these forecasts.
- For industrial
minerals the customer specification, testing and acceptance
requirements prior to a supply contract.
|
- No nickel Ore
Reserve is stated in this release.
|
Economic
|
- The inputs to the
economic analysis to produce the net present value (NPV) in the
study, the source and confidence of these economic inputs including
estimated inflation, discount rate, etc.
- NPV ranges and
sensitivity to variations in the significant assumptions and
inputs.
|
- No nickel Ore
Reserve is stated in this release.
|
Social
|
- The status of
agreements with key stakeholders and matters leading to social
licence to operate.
|
- No nickel Ore
Reserve is stated in this release
|
|
|
|
Other
|
- To the extent
relevant, the impact of the following on the project and/or on the
estimation and classification of the Ore Reserves:
- Any identified
material naturally occurring risks.
- The status of
material legal agreements and marketing arrangements.
- The status of
governmental agreements and approvals critical to the viability of
the project, such as mineral tenement status, and government and
statutory approvals. There must be reasonable grounds to expect
that all necessary Government approvals will be received within the
timeframes anticipated in the Pre-Feasibility or Feasibility study.
Highlight and discuss the materiality of any unresolved matter that
is dependent on a third party on which extraction of the reserve is
contingent.
|
- No nickel Ore
Reserve is stated in this release.
|
Classification
|
- The basis for the
classification of the Ore Reserves into varying confidence
categories.
- Whether the result
appropriately reflects the Competent Person's view of the
deposit.
- The proportion of
Probable Ore Reserves that have been derived from Measured Mineral
Resources (if any).
|
- No nickel Ore
Reserve is stated in this release.
|
Audits or
reviews
|
- The results of any
audits or reviews of Ore Reserve estimates.
|
- No nickel Ore
Reserve is stated in this release.
|
Discussion of
relative accuracy/ confidence
|
- Where appropriate a
statement of the relative accuracy and confidence level in the Ore
Reserve estimate using an approach or procedure deemed appropriate
by the Competent Person. For example, the application of
statistical or geostatistical procedures to quantify the relative
accuracy of the reserve within stated confidence limits, or, if
such an approach is not deemed appropriate, a qualitative
discussion of the factors which could affect the relative accuracy
and confidence of the estimate.
- The statement
should specify whether it relates to global or local estimates,
and, if local, state the relevant tonnages, which should be
relevant to technical and economic evaluation. Documentation should
include assumptions made and the procedures used.
- Accuracy and
confidence discussions should extend to specific discussions of any
applied Modifying Factors that may have a material impact on Ore
Reserve viability, or for which there are remaining areas of
uncertainty at the current study stage.
- It is recognised
that this may not be possible or appropriate in all circumstances.
These statements of relative accuracy and confidence of the
estimate should be compared with production data, where
available.
|
- No nickel Ore
Reserve is stated in this release.
|
This announcement is authorised for release to the
ASX by the Board.
SOURCE Westgold Resources Limited