BMK MacDonald Mines Exploration Ltd

MacDonald Mines Exploration Inc. (TSX VENTURE:BMK) ("BMK" or the "Company")
would like to provide clarification regarding its press release of September 12,
2012.


Clarification on the Statement That the Company "...has identified vanadium and
zinc-copper mineralization on the Butler Property that are economically viable
with road access" 


The Company stated it believes "it has identified vanadium and zinc-copper
mineralization on the Butler Property that are economically viable with road
access." Although the Company believes that the grades and widths of vanadium
and zinc-copper mineralization intersected on the Butler Property are comparable
to those being extracted in other mining jurisdictions with more accessible
infrastructure, this statement is not based on a positive economic analysis
based on a current resource statement, and the Company would like to retract the
statement.


Clarification on the Use of "Potential to Host both a world-class VMS deposit,
and an economically exploitable nickel deposit" 


BMK also stated that it believes that "the Butler property has the potential to
host both a world-class VMS deposit, and an economically exploitable nickel
deposit." This statement was based on geological and geochemical data reviews of
Butler Property drill hole data performed by well respected consultants. 


After reviewing the geological and geochemical data collected at the Butler
Property, Dr. James Franklin, PhD, FRSC, P.Geo., who has over 40 years of
extensive geological knowledge and expertise of mineral deposits and regional
metallogeny, serves as a Fellow of the Royal Society of Canada, was past
President of both the Geological Association of Canada and the Society of
Economic Geologists, has served as Chief Geoscientist of Earth Sciences Sector
for the Geological Survey of Canada (GSC), and is an Adjunct Professor at
Queen's, Laurentian and Ottawa universities stated "The volume of alteration is
exceptional, indicating that a very large volume of hydrothermal fluid
discharged in this region. There is good potential for a world-class VMS deposit
here, possibly on the extension of the core of the Zn-Cu rich zone as mapped
thus far." 


Dr. Larry Hulbert, Ph.D, D.Sc., P. Geo. reviewed the nickel, vanadium, and
platinum group element data collected at the Butler Property. Dr. Hulbert has
over 38 years of extensive geological knowledge and expertise on Ni-Cu-PGE
mineralization, with 23 years as Senior Research Scientist specializing in the
metallogeny of mafic-ultramafic rocks and associated Ni-Cu-PGE mineralization
with the GSC. Dr. Hulbert conducted a geological, geochemical, and geophysical
review of data collected over the Butler property, and made the following
observations:




--  wide range of differentiated mafic-ultramafic rocks ranging from
    komattitic dunite-peridotite sills/flows to gabbro and ferro-gabbro
    differentiates on the property 
    
--  magmatic Ni-Cu sulphides have recently (2012) been found in the marginal
    zone rocks at the extremity of a large dunite-peridotite complex on
    Butler 5 
    
--  the country rock to the intrusions has an abundance of external sulphur
    in the form of VMS mineralization to contaminate the magmas and cause
    sulphide immiscibility of Ni-Cu-PGE mineralization identical to the
    komatiitic ores at Noronts Eagles Nest deposits 
    
--  geochemical analyses indicate that this same body as well as some of the
    gabbroic intrusions have zinc contents hundreds to thousands of times
    normal background for such rocks, and is clear evidence of sulphur
    country rock contamination  
    
--  an IP survey over the central portion of this body demonstrates a
    "rooted" resistivity and "chargeability" feature underlying the
    intrusion in an area flanked by a string of VTEM anomalies along the
    base 
    
--  encouraging Ni-Cu sulphides have also been found in mid-range
    differentiated gabbroic rocks on Butler 5 (MN07-039) that has an
    unusually high magnetic signature for magnetite-poor gabbros - the
    source of this anomalous magnetism could be due to untested sources of
    Pyrhotite-Pentlandite 



Although the Company believes that the nickel prospectivity of the Butler
property is high based on Dr. Hulbert's observations, BMK's statement the Butler
property "has the potential to host...an economically exploitable nickel deposit
is not based on a positive economic analysis based on a current resource
statement, and the Company would like to retract the statement.


Clarification on Targeted Vanadium Resource 

BMK stated that "...the Company is confident that an exploration target of over
50 MT grading in excess of 0.6% V2O5 is obtainable on the property". This
statement should be clarified as a target range. In its place, the Company would
like to state it believes that targeting a vanadium deposit between 40 and 60
million tonnes with a grade range of 0.6% 1.0% V2O5 is obtainable on the
property, and that the development of a road to the Ring of Fire would be the
impetus to further develop this vanadium mineralization. 


The potential quantity and grade of the vanadium deposit target is conceptual in
nature and there has been insufficient exploration to adequately define a
mineral resource in accordance with NI 43-101 requirements. Further exploration
to define a compliant NI 43-101 resource would be required to delineate a
mineral resource. The potential quantity and grade of the target vanadium
deposit has been determined through the progression of exploration methodology
and initial metallurgical testing. This included airborne surveys, ground
geophysics, and diamond drill holes, in conjunction with assay results. The low
and high ranges of the resource target are based on confirmed drill hole
intersection assays to date. 


The grades of vanadium mineralization intersected at the Butler property are
highly significant, as they are directly comparable to the current producing
South African vanadium mines. The widths of vanadium mineralization found at the
Butler property however, are much wider than those currently being mined in
South Africa. Also of note, is that the magnetic concentrate obtained from
metallurgical analysis of the Butler property vanadium mineralization is of
superior tenor than that obtained in South Africa, with the Butler property
concentrate having V2O5 values of 2.08%, Fe2O3 values of 93.70% and TiO2 values
of 3.16%. 


Qualified Person

Quentin Yarie, P.Geo., is the qualified person in regard to the technical data
contained within this news release.


About MacDonald Mines Exploration Ltd. 

MacDonald Mines is a mineral exploration company with an established exploration
history in the Canadian Northlands. MacDonald Mines has set upon a strategic
direction of exploration with particular focus on nickel, chrome, copper, zinc,
vanadium and titanium in the "Ring of Fire" area of the James Bay Lowlands of
Northern Ontario. 


More information about the Company is available at www.macdonaldmines.com.

Cautionary Statement

No stock exchange, securities commission or other regulatory authority has
approved or disapproved the information contained herein. The foregoing
information may contain forward-looking statements relating to the future
performance of MacDonald Mines Exploration Ltd. Forward-looking statements,
specifically those concerning future performance, are subject to certain risks
and uncertainties, and actual results may differ materially from MacDonald's
plans and expectations. These plans, expectations, risks and uncertainties are
detailed herein and from time to time in the filings made by MacDonald with the
TSX Venture Exchange and securities regulators. MacDonald does not assume any
obligation to update or revise its forward-looking statements, whether as a
result of new information, future events or otherwise. We seek safe harbour.

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