Centerra Gold Inc. (“Centerra” or the “Company”) (TSX: CG) (NYSE:
CGAU) announces its 2024 year-end estimates for mineral reserves
and mineral resources. Proven and probable gold mineral reserves
were 3.5 million ounces and proven and probable copper mineral
reserves were 1,150 million pounds, as of December 31, 2024.
Measured and indicated gold mineral resources were 6.8 million
ounces as of December 31, 2024, which includes the initial gold
mineral resource at the Goldfield Project (“Goldfield”) of 706
thousand ounces.
Centerra Year-End Gold Mineral Reserves
and Mineral
Resources(1)
|
2024 |
2023 |
Property |
Tonnes(kt) |
Grade(g/t) |
ContainedGold (koz) |
Tonnes(kt) |
Grade(g/t) |
ContainedGold (koz) |
Total Proven and Probable Gold Mineral
Reserves |
Mount Milligan Mine |
264,512 |
0.33 |
2,826 |
250,025 |
0.35 |
2,822 |
Öksüt Mine |
20,080 |
1.03 |
662 |
25,255 |
1.01 |
819 |
Total |
284,591 |
0.38 |
3,488 |
275,280 |
0.41 |
3,641 |
Total Measured and Indicated Gold Mineral
Resources |
Mount Milligan Mine |
183,971 |
0.26 |
1,566 |
259,860 |
0.27 |
2,333 |
Öksüt Mine |
2,617 |
0.69 |
58 |
6,752 |
0.55 |
119 |
Kemess Open Pit |
111,682 |
0.27 |
980 |
111,682 |
0.27 |
980 |
Kemess Underground |
139,920 |
0.50 |
2,265 |
139,920 |
0.50 |
2,265 |
Kemess East |
93,454 |
0.39 |
1,182 |
93,454 |
0.39 |
1,182 |
Goldfield |
30,833 |
0.71 |
706 |
- |
- |
- |
Total |
562,476 |
0.37 |
6,759 |
611,668 |
0.35 |
6,880 |
Inferred Gold Mineral Resources |
Mount Milligan Mine |
27,924 |
0.44 |
395 |
7,795 |
0.34 |
84 |
Öksüt Mine |
130 |
1.06 |
4 |
348 |
0.78 |
9 |
Kemess Open Pit |
13,691 |
0.26 |
116 |
13,691 |
0.26 |
116 |
Goldfield |
2,267 |
0.41 |
30 |
- |
- |
- |
Total |
44,012 |
0.39 |
547 |
21,833 |
0.30 |
209 |
(1) As of December 31, 2024. Refer to Tables
“Centerra Gold Inc. 2024 Year-End Mineral Reserve and Resource
Summary – Gold” and “Centerra Gold Inc. 2024 Year-End Mineral
Reserve and Resource Summary – Other Metals”, including their
respective footnotes and the “Additional Footnotes” section
below.
- Mount
Milligan Mine (“Mount Milligan”): In 2024, the Company
replaced mined mineral reserves at Mount Milligan by upgrading
mineral resources. Centerra has successfully extended the life of
mine at Mount Milligan to 2036 by increasing the use of mined-out
areas of the open pit for potential acid generating (“PAG”) waste
storage. This has increased available storage capacity in the
existing tailings facility and extended the overall mine life for
the current mineral reserve estimate.
- Kemess
Project (“Kemess”): The Kemess property has substantial
gold and copper resources in a highly prospective district with
significant infrastructure already in place, including: a 300
kilometre, 230 kilovolt power line, one of the longest privately
owned power lines in British Columbia; a 50,000 tonnes per day
nameplate processing plant, which would require some refurbishment
and equipment replacements; site infrastructure including a camp,
administration facilities, truck shop and warehouse; and tailings
storage through in-pit and an existing facility, which is capable
of expansion. Centerra is currently working to incorporate the
results of a drilling campaign conducted in 2024 at Kemess into an
updated open pit resource model. The program included over 11,400
metres of core drilling for exploration, geotechnical, and
metallurgical testing purposes.During 2024, Centerra commenced
evaluation of technical concepts and engineering trade-off studies
for potential restart options at Kemess. Early operating concepts
include a combined open pit and conventional underground operation,
which are expected to be less capital intensive and have a better
cash flow profile than the previously permitted underground block
cave concept. In addition to an exploration campaign in 2025 to
further delineate the resources, the Company is planning on
continuing to advance the technical studies that will include
metallurgical testing for flowsheet optimization, mine plan
optimization, materials handling infrastructure engineering,
tailings design optimization, as well as initiation of
environmental baseline studies. Early indications show potential
for a long-life operation that takes advantage of the significant
infrastructure already in place. The Company expects to provide an
updated resource estimate and an accompanying update on the
technical concept for Kemess in the second quarter of 2025.
-
Goldfield: The initial measured and indicated gold
mineral resource at Goldfield was 706 thousand ounces of gold, as
of December 31, 2024, which includes both oxide and transition
material, principally in the Gemfield, McMahon, and Jupiter
deposits. In conjunction with exploration drilling, the Company
completed metallurgical testwork resulting in run-of-mine
recoveries in the mid-60% range (see “Additional Footnotes” section
at the end of this release for details on recoveries), which is in
line with expectations for a heap leach project and is expected to
lower the capital investment required for the project. Based on the
size of the resource estimate, the project does not meet Centerra’s
requirements to support near-term development. The Company remains
committed to maximizing the project’s potential, while exploring
strategic and commercial options for Goldfield.
Centerra Year-End Copper Mineral
Reserves and Mineral
Resources(1)
|
2024 |
2023 |
Property |
Tonnes(kt) |
Grade(%Copper) |
Contained Copper(Mlbs) |
Tonnes(kt) |
Grade(% Copper) |
Contained Copper(Mlbs) |
Proven and Probable Copper Mineral Reserves |
Mount Milligan Mine |
264,512 |
0.20 |
1,150 |
250,025 |
0.17 |
961 |
Total |
264,512 |
0.20 |
1,150 |
250,025 |
0.17 |
961 |
Measured and Indicated Copper Mineral
Resources |
Mount Milligan Mine |
183,971 |
0.18 |
732 |
259,860 |
0.15 |
851 |
Kemess Open Pit |
111,682 |
0.14 |
337 |
111,682 |
0.14 |
337 |
Kemess Underground |
139,920 |
0.25 |
779 |
139,920 |
0.25 |
779 |
Kemess East |
93,454 |
0.30 |
628 |
93,454 |
0.30 |
628 |
Total |
529,027 |
0.21 |
2,476 |
604,916 |
0.19 |
2,595 |
Inferred Copper Mineral Resources |
Mount Milligan Mine |
27,924 |
0.12 |
74 |
7,795 |
0.14 |
24 |
Kemess Open Pit |
13,691 |
0.16 |
48 |
13,691 |
0.16 |
48 |
Total |
41,615 |
0.13 |
121 |
21,486 |
0.15 |
72 |
(1) As of December 31, 2024. Refer to Tables
“Centerra Gold Inc. 2024 Year-End Mineral Reserve and Resource
Summary – Gold” and “Centerra Gold Inc. 2024 Year-End Mineral
Reserve and Resource Summary – Other Metals”, including their
respective footnotes and the “Additional Footnotes” section
below.
Exploration Update
Exploration activities in the fourth quarter of
2024 included drilling, surface rock and soil sampling, geological
mapping, and geophysical surveying, targeting gold and copy
mineralization at the Company’s projects and properties in Canada,
Türkiye, and the United States.
2024 Exploration Highlights
- Confirming Mount
Milligan’s long-life potential, the pit expanded to the west and
southwest, due to significant intersections in the Goldmark and
Saddle areas. Model expansion includes the south boundary area.
Remodeling considers all holes drilled west of the Mount Milligan
pit and resulted in defining the South Boundary inferred
resource.
- At Kemess
drilling was carried out in 2024 to assess the viability of
start-up scenarios and open pit resource expansion. The goal was to
expand near-surface mineralization west and southwest of the Kemess
underground project.
- Resource
delineation drilling for near surface oxide mineralization
continued at the Goldfield project. Drilling intersected low-grade
mineralization with a series of 10 to 30 metres at 0.4 grams per
tonne (“g/t”).
- Most of the
drilling was completed before the fourth quarter 2024, except at
the Oakley project, in Idaho, United States (5,818 metres),
Nallihan in Türkiye (4,829 metres) and Öksüt in Türkiye (421
metres). The drilling at Öksüt started late December 2024.
- Full year 2024
drilling totalled 72.3 kilometres, including greenfield
projects.
2025 Exploration Outlook
- Exploration
expenditures in 2025 are expected to be $35 to $45 million,
including $20 to $25 million of brownfield exploration primarily at
Mount Milligan and Kemess, and $15 to $20 million of greenfield and
generative exploration programs.
- Centerra is
expected to continue to explore the western extension of the Mount
Milligan deposit and perform infill drilling to upgrade the
inferred resources to indicated. Approximately 25% of the 2025
exploration expenditures are allocated to drilling programs at
Mount Milligan to upgrade the inferred resources between Goldmark
and North Slope and to test the extension of the South Boundary
mineralization. A total of 45 kilometres of drilling is planned for
2025 at Mount Milligan.
- Centerra is
expected to continue to explore Kemess, where the 2024 drilling
resulted in delineation of mineralization between the Kemess Main
open pit and Nugget (Centra Ridge zone). The 2025 exploration
program at Kemess is focused on upgrading the resources along the
five-kilometre-long mineralized trend. Approximately 13% of the
2025 exploration expenditures are allocated to Kemess to drill 12.5
kilometres.
- In the United
States, Centerra is expected to continue to explore for near
surface oxide mineralization within the Goldfield district and at
Oakley. Centerra is also expected to continue advancing exploration
work at its greenfield projects, Green Springs in Nevada and Jones
Creek in Utah.
- In Türkiye,
Centerra is expected to commence phase 2 drilling at the Nallihan
joint venture project and to continue to explore for near surface
mineralization southeast of the Öksüt pit.
Mount Milligan
- In 2024, the
Company replaced mined mineral reserves at Mount Milligan by
upgrading mineral resources. Ongoing exploration drilling program
at the site is aimed at expanding the mineral resource base
significantly to the west and southwest.
- In 2024, a total
of 7,176 metres of infill drilling was completed in 25 drillholes,
and 12,403 metres of brownfield exploration drilling was completed
in 28 drillholes. Brownfield exploration focused on targets west of
the current ultimate pit margins including the North Slope, Saddle
West, and Boundary zones.
- The 2024
exploration drill results at the North Slope zone show potential
for shallow as well as deep porphyry mineralization west of the
ultimate pit boundary, adjacent to the Goldmark zone. Results from
infill drilling in the MBX zone shows potential for resource
expansion on the western pit wall margins and below the current pit
boundary.
- The inclusion of
all drillholes west of the Mount Milligan pit in the updated
resource model resulted in the delineation of a potential satellite
pit at south boundary. This area is one of the focus areas in the
2025 drilling campaign.
- Centerra
continues to be encouraged by the significant mineral endowment and
the potential for future resource additions at Mount Milligan. The
Company is expected to invest approximately $9 to $12 million in
exploration at Mount Milligan in 2025.
Mount Milligan Brownfield Drilling and
Exploration
Figure 1: Plan view of Mount Milligan deposit
showing 2024 resource shell.
Figure 2: Plan view of Mount Milligan deposit
showing major porphyry trends.
Figure 3: East-West cross section of the Mount
Milligan 2024 resource pit (looking north), showing gold and copper
grade contours. The circled area is the 2025 target for infill
drilling.
Figure 4: Long section view of Mount Milligan
(looking northwest), showing gold and copper grade contours.
Circled areas represent target areas for the 2025 infill drill
program.
Figure 5: Plan view of Mt. Milligan showing the
2025 planned drilling program. Bright red holes are phase 1
priority holes intended to be completed by the end of the first
quarter 2025. Drilling started in January 2025.
The DWBX zone is the depth
extension of the WBX porphyry-style gold-copper mineralisation
currently mined in the pit. Mineralization is associated with
potassic alteration and early quartz veins within the DWBX stock
and stock margins. Near surface and south of the DWBX is the King
Richard zone. Results received to-date show the potential to extend
the open pit to mine DWBX, King Richard, and DWBX Extension. Some
selected significant results received during the year include:
Hole #24-1531: 26.0m
@ 0.71 g/t Au, 0.188% Cu from 58m
Hole #24-1569: 37.8m
@ 0.48 g/t Au, 0.229% Cu from 115m
Hole #24-1572: 30.3m
@ 0.55 g/t Au, 0.176% Cu from 83m
Hole #24-1556: 48.4m
@ 0.32 g/t Au, 0.204% Cu from 139m
Hole #24-1571: 58.0m
@ 0.24 g/t Au, 0.068% Cu from 68m
Hole #24-1556: 83.8m
@ 0.15 g/t Au, 0.127% Cu from 214m
Hole #24-1554: 73.0m
@ 0.16 g/t Au, 0.168% Cu from 248m
Hole #24-1564: 18.7m
@ 0.60 g/t Au, 0.161% Cu from 21m
The Goldmark zone is directly
west of the current Mount Milligan pit design, situated above the
high grade DWBX zone. In 2024, drilling continued to test the
western extent of the Goldmark mineralisation that had been
intersected in previous drill programs. Shallow porphyry-style gold
and copper mineralisation is hosted at the margins of dykes and the
Goldmark stock. High gold-low copper (“HGLC”) style mineralisation
occurs throughout the zone. The results show potential for shallow
resource additions and the extension of mineralisation west of the
existing pit boundary. Significant results include:
Hole #24-1529: 65.0m
@ 0.22 g/t Au, 0.191% Cu from 497m
Hole #24-1529: 19.2m
@ 0.41 g/t Au, 0.038% Cu from 370m
Hole #24-1532: 20.0m
@ 0.28 g/t Au, 0.030% Cu from 34m
Hole #24-1532: 11.5m
@ 0.32 g/t Au, 0.205% Cu from 275m
The North Slope zone is
approximately 1.5 kilometres west of the western margins of the
existing pit boundary. Assays show multiple localized shallow zones
of mineralisation related to the North Slope stock, with
higher-grade porphyry-style gold and copper mineralization
intersected near surface and at depth. Significant results
include:
Hole #24-1533: 42.3m
@ 0.41 g/t Au, 0.241% Cu from 25m
Hole #24-1533: 3.0m @
4.47 g/t Au, 0.078% Cu from 448m
Hole #24-1536: 41.8m
@ 0.33 g/t Au, 0.144% Cu from 244m
Hole #24-1536: 68.6m
@ 0.16 g/t Au, 0.172% Cu from 305m
Hole #24-1536: 64.9m
@ 0.29 g/t Au, 0.173% Cu from 378m
Hole #24-1543: 85.8m
@ 0.24 g/t Au, 0.173% Cu from 336m
Hole #24-1543: 101.3m
@ 0.20 g/t Au, 0.179% Cu from 451m
Hole #24-1563: 7.1m @
2.21 g/t Au, 0.142% Cu from 81m
Hole #24-1563: 13.5m
@ 1.09 g/t Au, 0.086% Cu from 32m
Hole #24-1566: 4.9m @
8.11 g/t Au, 0.024% Cu from 238m
Hole #24-1566: 40.0m
@ 0.33 g/t Au, 0.012% Cu from 136m
Hole #24-1567: 23.5m
@ 4.27 g/t Au, 0.183% Cu from 160m
Hole #24-1567: 5.0m @
5.01 g/t Au, 0.147% Cu from 291m
Hole #24-1567: 27.0m
@ 2.83 g/t Au, 0.143% Cu from 342m
Hole #24-1567: 27.7m
@ 3.63 g/t Au, 0.129% Cu from 483m
Kemess Project
- In 2024, 11,430
metres of core drilling was completed in 31 drillholes. These
drillholes are expected to be incorporated into an updated mineral
resource in the second quarter of 2025.
- The 2024 drill
program targeted the area between the known mineralization at
Nugget and the upper portion of the Kemess Underground zones.
Significant drill intersections were received, confirming that the
mineralization continues approximately five kilometres along
strike.
- Geologic
modeling and a preliminary resource estimate show continuous
mineralization between the Nugget and Kemess North zone areas,
which is expected to be the focus for the 2025 drill program. The
program aims to upgrade inferred resources to indicated reserves
and also to test, and potentially, confirm high grade
mineralization in the deep Kemess offset zone.
- Centerra is
encouraged by the large mineralization at Kemess and believes that
it can be a future source of gold and copper production with a long
mine life.
Some of the significant 2024 results
include:
Hole #KN-24-013: 435m
@ 0.43g/t Au, 0.23% Cu from 172m
Hole #KN-24-013: 402m
@ 0.42g/t Au, 0.20% Cu from 47m
Hole #KN-24-017: 382m
@ 0.38g/t Au, 0.19% Cu from 8m
Hole #KN-24-014: 342m
@ 0.35g/t Au, 0.07% Cu from 56m
Hole #KN-24-019: 341m
@ 0.34g/t Au, 0.16% Cu from 4m
Hole #KN-24-021: 311m
@ 0.37g/t Au, 0.18% Cu from 0m
Figure 6: A long sectional view of the Kemes
deposit showing a 0.2 g/t Au shell. The areas previously studied
for a potential block cave mining scenario are shown within the
dotted areas. The 2023 conceptual optimized pit is shown in
grey.
Goldfield Project
(“Goldfield”)
- In 2024,
Centerra continued to explore within the Goldfield district,
focusing on exploring near surface oxide mineralization.
- The 2024 drill
program consisted of 175 drillholes over 20,028 metres with 45 core
holes totaling 5,386 metres and 130 reverse circulation drillholes
totaling 14,642 metres.
- Drilling at
Goldfield’s other target areas did not yield meaningful
results.
The Jupiter prospect exploration program focused
on oxidized mineralization with an up-dip projection trending
shallower on the eastern portion of the prospect. The Jupiter
prospect is the northerly extension of the Gemfield deposit.
Drilling was facilitated by land agreements and drill permits
completed in late 2023. Results proved the up-dip projection of
oxide mineralization in the prospect, however, the grades and
thickness are uneconomic to include an appreciable amount of
material into an optimized pit shell when the prevailing economic
parameters were applied. A series of small satellite pits were
delineated to be included in the Goldfield initial resource. Some
of the significant results received for Jupiter include:
Hole #GEM24R279:
19.8m @ 2.55 g/t Au, 16.38 g/t Ag from 87m
Hole #GEM24R256:
36.6m @ 1.04 g/t Au, 1.09 g/t Ag from 20m
Hole #GEM24R319: 6.1m
@ 5.36 g/t Au, 5.50 g/t Ag from 0m
Hole #GEM24R286:
24.4m @ 1.09 g/t Au, 1.96 g/t Ag from 23m
Hole #GEM24R249:
35.1m @ 0.41 g/t Au, 0.66 g/t Ag from 40m
Hole #GEM24R291:
30.5m @ 0.46 g/t Au, 0.70 g/t Ag from 15m
Hole #GEM24R289:
30.5m @ 0.40 g/t Au, 0.91 g/t Ag from 15m
Hole #GEM24R239:
32.0m @ 0.38 g/t Au, 1.04 g/t Ag from 11m
Oakley Project (“Oakley”)
- The 2024 drill
program at Oakley completed 32 drillholes over 5,818 metres with 18
core holes totaling 2,995 metres and 14 reverse circulation
drillholes totaling 2,823 metres.
- In 2024,
drilling at the Cold Hill and Blue Hill prospects focused on
expanding the known gold mineralization, while drilling at Red Rock
and White Rock focused on new, untested drill targets.
At the Cold Hill target, four holes encountered
significant mineralization, primarily represented by silicified
pebble to cobble conglomerate and silicified volcanic ash, and with
minor intersections within the underlying Paleozoic limestone,
represented by decalcification and silicification. These
intersections continue to define the lateral extent and width of
the mineralization at Cold Hill. Some of the significant results
received for Cold Hill include:
Hole #CC-24-04: 20.3m
@ 0.24 g/t Au, 1.47 g/t Ag from 8m
Hole #CC-24-04: 20.9m
@ 0.50 g/t Au, 4.00 g/t Ag from 37m
Hole #CC-24-07: 9.9m
@ 0.69 g/t Au, 1.19 g/t Ag from 192m
Hole #CC-24-07: 1.0m
@ 4.54 g/t Au, 0.90 g/t Ag from 200m
Drilling at the Blue Hill prospect focused on
testing the margins of the known mineralization and following up on
the higher-grade intersections identified in historic drilling.
Mineralization was encountered in the most southwestern drillholes
in the prospect, which shows the potential for additional
mineralization towards the southwest. The mineralization is
associated with strong silicification of the pebble to cobble
conglomerate and silicification of the volcanic ash beds.
Significant intersections are listed below.
Hole #BHC24R001:
19.8m @ 0.42 g/t Au, 4.19 g/t Ag from 24m
Hole #BHC24R003:
24.4m @ 0.45 g/t Au, 4.73 g/t Ag from 84m
Hole #BHC24R005:
64.0m @ 0.31 g/t Au, 2.74 g/t Ag from 50m
Hole #BHC24R005:
28.9m @ 0.25 g/t Au, 6.88 g/t Ag from 131m
Hole #BHC24R007:
21.4m @ 0.35 g/t Au, 3.11 g/t Ag from 90m
Hole #BHC24R007:
67.0m @ 0.50 g/t Au, 5.83 g/t Ag from 162m
Öksüt Mine (“Öksüt”)
Drilling started during December 2024, with a
total of 431 metres completed at the Güneytepe pit to test for
potential deep porphyry mineralization. The exploration for deep
porphyry deposits was initiated in 2023, based on historical
drillholes confirming potassic alteration related to porphyry
intrusive rocks on the Öksüt license. In 2024, a detailed
alteration analysis and modelling was completed, using data from
historical and recent (2023) deep holes drilled in and around the
Öksüt deposit. The analysis of these drillholes pointed to the
presence of a large pyrophyllite alteration zone, which is an
indicator for the presence of the upper parts of a porphyry system.
The porphyry system was tested in 2024 by drilling additional deep
holes under the Güneytepe pit. In 2025, Centerra expects to
continue to explore for near surface oxide mineralization southeast
of the Öksüt pit.
A full listing of the drill results has been
filed on SEDAR+ at www.sedarplus.ca, EDGAR at www.sec.gov/edgar,
and is available on the Company’s website at
www.centerragold.com.
Centerra Gold Inc. 2024 Year-End Mineral Reserve and
Resources Summary –
Gold(1) |
as of December 31, 2024 (see additional footnotes
below) |
|
Proven and Probable Gold Mineral Reserves |
|
Proven |
Probable |
Total Proven and Probable |
Property |
Tonnes |
Grade |
ContainedGold (koz) |
Tonnes |
Grade |
ContainedGold (koz) |
Tonnes |
Grade |
ContainedGold (koz) |
(kt) |
(g/t) |
(kt) |
(g/t) |
(kt) |
(g/t) |
Mount Milligan(4) |
187,961 |
0.34 |
2,056 |
76,551 |
0.31 |
770 |
264,512 |
0.33 |
2,826 |
Öksüt |
475 |
0.63 |
10 |
19,604 |
1.04 |
653 |
20,080 |
1.03 |
662 |
Total |
188,436 |
0.34 |
2,065 |
96,155 |
0.46 |
1,423 |
284,591 |
0.38 |
3,488 |
|
Measured and Indicated Gold Mineral
Resources(2) |
|
Measured |
Indicated |
Total Measured and Indicated |
Property |
Tonnes |
Grade |
ContainedGold (koz) |
Tonnes |
Grade |
ContainedGold (koz) |
Tonnes |
Grade |
ContainedGold (koz) |
(kt) |
(g/t) |
(kt) |
(g/t) |
(kt) |
(g/t) |
Mount Milligan(4) |
91,827 |
0.25 |
743 |
92,144 |
0.28 |
824 |
183,971 |
0.26 |
1,566 |
Öksüt |
393 |
0.55 |
7 |
2,224 |
0.72 |
51 |
2,617 |
0.69 |
58 |
Kemess Open Pit |
- |
- |
- |
111,682 |
0.27 |
980 |
111,682 |
0.27 |
980 |
Kemess Underground |
- |
- |
- |
139,920 |
0.50 |
2,265 |
139,920 |
0.50 |
2,265 |
Kemess East |
- |
- |
- |
93,454 |
0.39 |
1,182 |
93,454 |
0.39 |
1,182 |
Goldfield |
9,729 |
1.08 |
339 |
21,103 |
0.54 |
368 |
30,833 |
0.71 |
706 |
Total |
101,949 |
0.33 |
1,088 |
460,527 |
0.38 |
5,670 |
562,476 |
0.37 |
6,759 |
|
Inferred Gold Mineral Resources
(3) |
|
Property |
Tonnes |
Grade |
ContainedGold (koz) |
(kt) |
(g/t) |
Mount Milligan (4) |
27,924 |
0.44 |
395 |
Öksüt |
130 |
1.06 |
4 |
Kemess Open Pit |
13,691 |
0.26 |
116 |
Kemess Underground |
- |
- |
- |
Kemess East |
- |
- |
- |
Goldfield |
2,267 |
0.41 |
30 |
Total |
44,012 |
0.39 |
546 |
1) Centerra’s equity interests as of this news
release are as follows: Mount Milligan 100%, Öksüt 100%, Kemess
Open Pit, Kemess Underground and Kemess East 100%, Goldfield 100%.
Mineral reserves and resources for these properties are presented
on a 100% basis. Numbers may not add up due to rounding.2) Mineral
resources are in addition to mineral reserves. Mineral resources do
not have demonstrated economic viability. 3) Inferred mineral
resources have a great amount of uncertainty as to their existence
and as to whether they can be mined economically. It cannot be
assumed that all or part of the inferred mineral resources will
ever be upgraded to a higher category. 4) Production at Mount
Milligan is subject to a streaming agreement with RGLD Gold AG and
Royal Gold, Inc. (collectively, “Royal Gold”) which entitles Royal
Gold to 35% of gold sales from the Mount Milligan Mine. Under the
stream arrangement, Royal Gold will pay a reduced price per ounce
of gold delivered. Mineral reserves and resources for the Mount
Milligan property are presented on a 100% basis.
Centerra Gold Inc. 2024 Year-End Mineral Reserve and
Resources Summary – Other
Metals(1) |
as of December 31, 2024 (see additional footnotes
below) |
|
|
Tonnes(kt) |
CopperGrade(%) |
ContainedCopper(Mlbs) |
MolybdenumGrade(%) |
ContainedMolybdenum(Mlbs) |
SilverGrade(g/t) |
ContainedSilver(koz) |
Proven Mineral Reserves |
Mount Milligan(4) |
187,961 |
0.19 |
808 |
- |
- |
- |
- |
Thompson Creek |
44,885 |
- |
- |
0.076 |
75 |
|
- |
Probable Mineral Reserves |
Mount Milligan(4) |
76,551 |
0.20 |
342 |
- |
- |
- |
- |
Thompson Creek |
68,104 |
- |
- |
0.057 |
86 |
|
- |
Total Proven and Probable Mineral Reserves |
Mount Milligan(4) |
264,512 |
0.20 |
1,150 |
- |
- |
- |
- |
Thompson Creek |
112,989 |
- |
- |
0.065 |
161 |
|
- |
Total Copper and Molybdenum |
377,501 |
0.20 |
1,150 |
0.065 |
161 |
- |
- |
|
|
|
|
|
|
|
|
Measured Mineral
Resources(2) |
Mount Milligan(4) |
91,827 |
0.19 |
384 |
- |
- |
- |
- |
Thompson Creek |
5,009 |
- |
- |
0.059 |
7 |
- |
- |
Endako |
47,100 |
- |
- |
0.050 |
48 |
- |
- |
Indicated Mineral
Resources(2) |
Mount Milligan(4) |
92,144 |
0.17 |
348 |
- |
- |
- |
- |
Kemess Open Pit |
111,682 |
0.14 |
337 |
- |
- |
1.19 |
4,262 |
Kemess Underground |
139,920 |
0.25 |
779 |
- |
- |
1.90 |
8,544 |
Kemess East |
93,454 |
0.30 |
628 |
- |
- |
1.66 |
5,000 |
Thompson Creek |
45,178 |
- |
- |
0.057 |
57 |
- |
- |
Endako |
122,175 |
- |
- |
0.040 |
118 |
- |
- |
Total Measured and Indicated Mineral
Resources(2) |
Mount Milligan(4) |
183,971 |
0.18 |
732 |
- |
- |
- |
- |
Kemess Open Pit |
111,682 |
0.14 |
337 |
- |
- |
1.19 |
4,262 |
Kemess Underground |
139,920 |
0.25 |
779 |
- |
- |
1.90 |
8,544 |
Kemess East |
93,454 |
0.30 |
628 |
- |
- |
1.66 |
5,000 |
Total Copper and Silver |
529,027 |
0.21 |
2,476 |
- |
- |
1.61 |
17,806 |
Thompson Creek |
50,187 |
- |
- |
0.057 |
63 |
- |
- |
Endako |
169,275 |
- |
- |
0.043 |
166 |
- |
- |
Total Molybdenum |
219,462 |
- |
- |
0.046 |
229 |
- |
- |
Inferred Mineral
Resources(3) |
Mount Milligan(4) |
27,924 |
0.12 |
74 |
- |
- |
- |
- |
Kemess Open Pit |
13,691 |
0.16 |
48 |
- |
- |
1.40 |
615 |
Total Copper and Silver |
41,615 |
0.13 |
121 |
- |
- |
1.40 |
615 |
Thompson Creek |
10,523 |
- |
- |
0.072 |
17 |
- |
- |
Endako |
47,325 |
- |
- |
0.040 |
44 |
- |
- |
Total Molybdenum |
57,848 |
- |
- |
0.046 |
61 |
- |
- |
1) Centerra’s equity interests as of this news
release are as follows: Mount Milligan 100%, Kemess Underground and
Kemess East 100%, Thompson Creek 100%, and Endako 75%. Mineral
reserves and resources for these properties are presented on a 100%
basis. Numbers may not add up due to
rounding. 2)
Mineral resources are in addition to mineral reserves. Mineral
resources do not have demonstrated economic
viability. 3) Inferred
mineral resources have a great amount of uncertainty as to their
existence and as to whether they can be mined economically. It
cannot be assumed that all or part of the inferred mineral
resources will ever be upgraded to a higher
category. 4) Production
at Mount Milligan is subject to a streaming agreement which
entitles Royal Gold to 18.75% of copper sales from the Mount
Milligan Mine. Under the stream arrangement, Royal Gold will pay a
reduced percentage of the spot price per metric tonne of copper
delivered. Mineral reserves and resources for the Mount Milligan
property are presented on a 100% basis.
Additional Footnotes
General
- A conversion
factor of 31.1035 grams per troy ounce of gold is used in the
mineral reserve and mineral resource estimates.
Mount Milligan Mine
- The mineral
reserves are reported based on a gold price of $1,800 per ounce, a
copper price of $3.75 per pound and an exchange rate of
1USD:1.30CAD.
- The open pit
mineral reserves are reported based on a Net Smelter Return (“NSR”)
cut-off of $8.72 per tonne (C$11.33 per tonne) that takes into
consideration metallurgical recoveries, concentrate grades,
transportation costs, and smelter treatment charges to determine
economic viability.
- The mineral
resources are reported based on a gold price of $2,000 per ounce, a
copper price of $4.00 per pound, and an exchange rate of
1USD:1.30CAD.
- The open pit
mineral resources are constrained by a pit shell and are reported
based on a NSR cut-off of $8.72 per tonne (C$11.33 per tonne) that
takes into consideration metallurgical recoveries, concentrate
grades, transportation costs, and smelter treatment charges to
determine economic viability.
- Further
information concerning the Mount Milligan deposit, operation, as
well as environmental and other risks is described in Centerra’s
most recently filed Annual Information Form and in the Mount
Milligan Mine Technical Report, each of which has been filed on
SEDAR+ at www.sedarplus.ca and EDGAR at www.sec.gov/edgar.
Sample preparation, analytical techniques, laboratories used, and
quality assurance-quality control protocols used during the
exploration drilling programs are consistent with industry
standards and were carried out by independent, certified assay
labs.
- The resource
tables above do not include the 2024 exploration drill
results.
Öksüt Mine
- The mineral
reserves are reported based on a gold price of $1,800 per ounce and
an exchange rate of 1USD:34TL.
- The open pit
mineral reserves are reported based on 0.16 grams of gold per tonne
cut-off grade.
- Open pit
optimization used an average life of mine (“LOM”) metallurgical
recovery of 77%.
- The mineral
resources are reported based on a gold price of $2,000 per
ounce.
- Open pit mineral
resources are constrained by a pit shell and are estimated based on
0.16 grams of gold per tonne cut-off grade.
- Further
information concerning the Öksüt deposit, operation, as well as
environmental and other risks is described in Centerra’s most
recently filed Annual Information Form which is available on SEDAR+
at www.sedarplus.ca and EDGAR
at www.sec.gov/edgar and the Technical Report on the
Öksüt Project, dated September 3, 2015, which is available on
SEDAR+ at www.sedarplus.ca. Sample preparation, analytical
techniques, laboratories used, and quality assurance-quality
control protocols used during the exploration drilling programs are
consistent with industry standards and were carried out by
independent, certified assay labs.
Kemess Open Pit and
Underground
- The mineral
resources are reported based on a gold price of $1,800 per ounce,
copper price of $3.75 per pound and an exchange rate of
1USD:1.30CAD.
- The mineral
resources are reported based on a NSR cut-off of C$12.92 open pit
and a NSR shut-off value of C$22.92 per tonne for underground block
cave mining option that takes into consideration metallurgical
recoveries, concentrate grades, transportation costs, and smelter
treatment charges.
Kemess East
- The mineral
resources are reported based on a gold price of $1,800 per ounce,
copper price of $3.75 per pound, and an exchange rate of
1USD:1.30CAD.
- The mineral
resources are reported based on a NSR shut-off of C$22.92 per tonne
for underground block cave mining option that takes into
consideration metallurgical recoveries, concentrate grades,
transportation costs, and smelter treatment charges.
Thompson Creek Mine
- The mineral
reserves have been estimated based on a molybdenum price of $16.00
per pound.
- The open pit
mineral reserves are based on a 0.030% molybdenum cut-off
grade.
- The mineral
resources have been estimated based on a molybdenum price of $18.50
per pound.
- The open pit
mineral resources are constrained by a pit shell and are estimated
based on a 0.025% molybdenum cut-off grade.
- Further
information concerning the Thompson Creek deposit, current and
planned operations as well as environmental and other risks are
described in the technical report dated September 2024 and filed on
SEDAR+ at www.sedarplus.ca. Sample preparation, analytical
techniques, laboratories used, and quality assurance-quality
control protocols used during the exploration drilling programs are
consistent with industry standards and were carried out by
independent, certified assay labs.
Endako Mine
- The mineral
resources are reported based on a molybdenum price of C$14.00 per
pound and an exchange rate of 1USD:1.25CAD.
- The open pit
mineral resources are constrained by a pit shell and are estimated
based on a 0.025% molybdenum cut-off grade.
Goldfield
- The mineral
resources are reported based on a gold price of $2,000 per
ounce.
- The open pit
mineral resources are constrained by a pit shell and are estimated
based on the following cut-off grades:
Gemfield: 0.10 g/t for oxide,
transition, and sulphide
Jupiter: 0.10 g/t for
oxide, transition, and sulphide
Goldfield Main: 0.14
g/t for oxide, 0.21 g/t for transition, 0.24 g/t for sulphide
McMahon Ridge: 0.14
g/t for oxide, 0.21 g/t for transition, 0.24 g/t for sulphide
- ROM recoveries
were assumed to be 67% for the oxide and transition zones for
Gemfield and Jupiter, and 62% and 31% for the oxide and transition
zones, respectively, for McMahon Ridge.
- Goldfield Main
recoveries considered tertiary crushing, and were 82% for oxide,
61% for transition and 50% for sulphide mineralization.
Qualified Person – Mineral Reserves and
Resources
Christopher Richings, Professional Engineer,
member of the Engineers and Geoscientists British Columbia (EGBC)
and Centerra’s Vice President, Technical Services, has reviewed and
approved the scientific and technical information related to
mineral reserves at Mount Milligan and Thompson Creek contained in
this news release. Mr. Richings is a Qualified Person within the
meaning of Canadian Securities Administrator’s NI 43-101 Standards
of Disclosure for Mineral Projects (“NI 43-101”).
Lars Weiershäuser, PhD and PGeo., and Centerra’s
Director, Geology, has reviewed and approved the scientific and
technical information related to mineral resource estimates
contained in this news release related to Öksüt, Kemess Open Pit,
Kemess Underground, Kemess East, Thompson Creek, and Endako. Dr.
Weiershäuser is a Qualified Person within the meaning of NI
43-101.
Andrey Shabunin, Professional Engineer, member
of Professional Engineers of Ontario (PEO) and General Manager of
Öksüt Mine, has reviewed and approved the scientific and technical
information related to mineral reserves at Öksüt contained in this
news release. Mr. Shabunin is a Qualified Person within the meaning
of NI 43-101.
AC (Chris) Hunter, Professional Geoscientist,
member of the Engineers and Geoscientists of British Columbia
(EGBC) and Centerra’s Senior Geologist, has reviewed and approved
the scientific and technical information related to mineral
resources estimates at Mount Milligan contained in this news
release. Mr. Hunter is a Qualified Person within the meaning of NI
43-101.
Karen Chiu, MSc., PGeo, and Centerra’s Corporate
Geologist, has reviewed and approved the scientific and technical
information related to mineral resource estimates contained in this
news release related to Goldfield. Ms. Chiu is a Qualified Person
within the meaning of NI 43-101.
All other scientific and technical information
presented in this document were prepared in accordance with the
standards of the Canadian Institute of Mining, Metallurgy and
Petroleum and NI 43-101 and were reviewed, verified, and compiled
by Centerra’s geological and mining staff under the supervision of
W. Paul Chawrun, Professional Engineer, member of the Professional
Engineers of Ontario (PEO) and Centerra’s Executive Vice President
and Chief Operating Officer whom is a qualified person for the
purpose of NI 43-101.
All mineral reserve and resources have been
estimated in accordance with the standards of the Canadian
Institute of Mining, Metallurgy and Petroleum and NI 43-101.
Mineral reserve and mineral resource estimates
are forward-looking information and are based on key assumptions
and are subject to material risk factors. If any event arising from
these risks occurs, the Company’s business, prospects, financial
condition, results of operations or cash flows, and the market
price of Centerra’s shares could be adversely affected. Additional
risks and uncertainties not currently known to the Company, or that
are currently deemed immaterial, may also materially and adversely
affect the Company’s business operations, prospects, financial
condition, results of operations or cash flows, and the market
price of Centerra’s shares. See the section entitled “Risk That Can
Affect Centerra’s Business” in the Company’s annual Management’s
Discussion and Analysis (MD&A) for the year-ended December 31,
2024, available on SEDAR+ at www.sedarplus.ca and EDGAR at
www.sec.gov/edgar and see also the discussion below under the
heading “Caution Regarding Forward-looking Information”.
Qualified Person & QA/QC –
Exploration
Exploration information and related scientific
and technical information in this document regarding the Mount
Milligan Mine were prepared, reviewed, verified, and compiled in
accordance with the standards of NI 43-101 by Cheyenne Sica, Member
of the Association of Professional Geoscientists Ontario and Member
of Engineers and Geoscientists British Columbia, and Exploration
Manager at Centerra’s Mount Milligan Mine, who is the qualified
person for the purpose of NI 43-101. Sample preparation, analytical
techniques, laboratories used, and quality assurance and quality
control protocols used during the exploration drilling programs are
done consistent with industry standards while independent certified
assay labs are used.
Exploration information and related scientific
and technical information in this document regarding the Öksüt
Mine, the Goldfield District Project, Oakley Project, and all other
exploration projects were prepared, reviewed, verified, and
compiled in accordance with the standards of NI 43-101 by Richard
Adofo, Member of the Professional Association of Geoscientists
Ontario and Vice President, Exploration & Resource at Centerra,
who is the qualified person for the purpose of NI 43-101. Sample
preparation, analytical techniques, laboratories used, and quality
assurance and quality control protocols used during the exploration
drilling programs are done consistent with industry standards while
independent certified assay labs are used.
All other scientific and technical information
presented in this document were prepared in accordance with the
standards of the Canadian Institute of Mining, Metallurgy and
Petroleum and NI 43-101 and were reviewed, verified, and compiled
by Centerra’s geological and mining staff under the supervision of
W. Paul Chawrun, Professional Engineer, member of the Professional
Engineers of Ontario (PEO), who is a qualified person for the
purpose of NI 43-101.
About Centerra GoldCenterra
Gold Inc. is a Canadian-based gold mining company focused on
operating, developing, exploring and acquiring gold and copper
properties in North America, Türkiye, and other markets worldwide.
Centerra operates two mines: the Mount Milligan Mine in British
Columbia, Canada, and the Öksüt Mine in Türkiye. The Company also
owns the Kemess Project in British Columbia, Canada, the Goldfield
Project in Nevada, United States, and owns and operates the
Molybdenum Business Unit in the United States and Canada.
Centerra’s shares trade on the Toronto Stock Exchange (“TSX”) under
the symbol CG and on the New York Stock Exchange (“NYSE”) under the
symbol CGAU. The Company is based in Toronto, Ontario, Canada.
For more information:
Lisa WilkinsonVice President, Investor Relations & Corporate
Communications(416) 204-3780Lisa.Wilkinson@centerragold.com
Additional information on Centerra is available
on the Company’s website at www.centerragold.com, on SEDAR+ at
www.sedarplus.ca and EDGAR at www.sec.gov/edgar.
Caution Regarding Forward-Looking
Information
This news release contains or incorporates by
reference “forward-looking statements” and “forward-looking
information” as defined under applicable Canadian and U.S.
securities legislation. All statements, other than statements of
historical fact, which address events, results, outcomes or
developments that the Company expects to occur are, or may be
deemed to be, forward-looking statements. Such forward-looking
information involves risks, uncertainties and other factors that
could cause actual results, performance, prospects and
opportunities to differ materially from those expressed or implied
by such forward-looking information. Forward-looking statements are
generally, but not always, identified by the use of forward-looking
terminology such as “assume”, “believes”, “continue”, “encouraged”,
“estimate”, “expect”, “future”, “ongoing”, “plan”, “potential”,
“target” or “update”, or variations of such words and phrases and
similar expressions or statements that certain actions, events or
results “may”, “could”, “would” or “will” be taken, occur or be
achieved or the negative connotation of such terms. Such statements
include but may not be limited to: mineral reserve and mineral
resource estimates; life of mine estimates and operating and
capital costs; future exploration potential; timing and scope of
future exploration (brownfields or greenfields); the ability of the
Company to increase mineral reserves or mineral resources at any of
its properties; the future success of Kemess including the results
of an updated resource estimate and accompanying update on its
technical concept including mining methods; the ability of the
Company to achieve 50,000 tonnes per day at the Kemess processing
plant; the ability of the Company to expand the existing tailings
facility at Kemess; and other statements that express management’s
expectations or estimates of future plans and performance,
operational, geological or financial results, estimates or amounts
not yet determinable and assumptions of management.
The Company cautions that forward-looking
statements are necessarily based upon a number of factors and
assumptions that, while considered reasonable by the Company at the
time of making such statements, are inherently subject to
significant business, economic, technical, legal, political and
competitive uncertainties and contingencies. Known and unknown
factors could cause actual results to differ materially from those
projected in the forward-looking statements and undue reliance
should not be placed on such statements and information.
Market price fluctuations in gold, copper, and
other metals, as well as increased capital or production costs or
reduced recovery rates may render ore reserves containing lower
grades of mineralization uneconomic and may ultimately result in a
restatement of mineral reserves. The extent to which mineral
resources may ultimately be reclassified as proven or probable
mineral reserves is dependent upon the demonstration of their
profitable recovery. Economic and technological factors, which may
change over time, always influence the evaluation of mineral
reserves or mineral resources. Centerra has not adjusted mineral
resource figures in consideration of these risks and, therefore,
Centerra can give no assurances that any mineral resource estimate
will ultimately be reclassified as proven and probable mineral
reserves.
Mineral resources are not mineral reserves, and
do not have demonstrated economic viability, but do have reasonable
prospects for economic extraction. Measured and indicated mineral
resources are sufficiently well defined to allow geological and
grade continuity to be reasonably assumed and permit the
application of technical and economic parameters in assessing the
economic viability of the resource. Inferred mineral resources are
estimated on limited information not sufficient to verify
geological and grade continuity or to allow technical and economic
parameters to be applied. Inferred mineral resources are too
speculative geologically to have economic considerations applied to
them to enable them to be categorized as mineral reserves. There is
no certainty that mineral resources of any category can be upgraded
to mineral reserves through continued exploration.
Centerra’s mineral reserve and mineral resource
figures are estimates, and Centerra can provide no assurances that
the indicated levels of gold or copper will be produced, or that
Centerra will receive the metal prices assumed in determining its
mineral reserves. Such estimates are expressions of judgment based
on knowledge, mining experience, analysis of drilling results, and
industry practices. Valid estimates made at a given time may
significantly change when new information becomes available. While
Centerra believes that these mineral reserve and mineral resource
estimates are well established, and the best estimates of
Centerra’s management, by their nature mineral reserve and mineral
resource estimates are imprecise and depend, to a certain extent,
upon analysis of drilling results and statistical inferences, which
may ultimately prove unreliable. If Centerra’s mineral reserve or
mineral reserve estimates for its properties are inaccurate or are
reduced in the future, this could have an adverse impact on
Centerra’s future cash flows, earnings, results, or operations and
financial condition.
Centerra estimates the future mine life of its
operations. Centerra can give no assurance that mine life estimates
will be achieved. Failure to achieve these estimates could have an
adverse impact on Centerra’s future cash flows, earnings, results
of operations, and financial condition.
Additional risk factors and details with respect
to risk factors that may affect the Company’s ability to achieve
the expectations set forth in the forward-looking statements
contained in this news release are set out in the Company’s latest
40-F/Annual Information Form and Management’s Discussion and
Analysis, each under the heading “Risk Factors”, which are
available on SEDAR+ (www.sedarplus.ca) or on EDGAR
(www.sec.gov/edgar). The foregoing should be reviewed in
conjunction with the information, risk factors and assumptions
found in this news release.
The Company disclaims any intention or
obligation to update or revise any forward-looking statements,
whether written or oral, or whether as a result of new information,
future events or otherwise, except as required by applicable
law.
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A PDF accompanying this announcement is available
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