Osisko Files Technical Report for Windfall Mineral Resource Estimate Update
September 14 2022 - 8:00AM
Osisko Mining Inc. (OSK:TSX, "Osisko" or the "Corporation") is
pleased to announce that it has filed a technical report in
accordance with National Instrument 43-101 – Standards of
Disclosure for Mineral Projects ("
NI 43-101") to
update the mineral resource estimate on its 100% owned Windfall
gold deposit. The technical report entitled " Mineral Resource
Estimate Update for the Windfall Project, Eeyou Istchee James Bay,
Québec, Canada" and dated September 14, 2022 (with an effective
date of June 7, 2022) has been prepared for Osisko by BBA Inc. The
technical report is available on SEDAR (www.sedar.com) under
Osisko's issuer profile.
The technical report contains a non-material
change from the news release published on August 30, 2022.
Sensitivity Table 1 has been corrected for the 2.5g/t cut-off
grade. This change does not impact the results of the August 30,
2022 news release as the modification affects only numbers
presented for reference purposes in the news release. The NI
43-101 Technical Report cut-off grade has been determined with
reference to a 3.5g/t cut-off grade. The Table 1 below (which
is included in the Technical Report) should replace the Table 1
from the August 30, 2022 news release.
Table 1: Windfall Gold Deposit Mineral
Resource Estimate Sensitivity Table
Cut-off 2(g/t
Au) |
Measured + Indicated |
Inferred |
Tonnes1(000
t) |
Gold(g/t) |
Ag(g/t) |
Ounces Au1 (000
oz) |
Ounces Ag1(000 oz) |
Tonnes1 (000
t) |
Gold(g/t) |
Ag(g/t) |
Ounces Au1 (000
oz) |
Ounces Ag1(000 oz) |
5.0 |
8,213 |
13.9 |
7.0 |
3,667 |
1,854 |
7,986 |
10.7 |
6.0 |
2,760 |
1,545 |
4.5 |
9,029 |
13.1 |
6.7 |
3,791 |
1,935 |
9,078 |
10.0 |
5.6 |
2,927 |
1,638 |
4.0 |
9,950 |
12.2 |
6.3 |
3,917 |
2,020 |
10,561 |
9.2 |
5.2 |
3,129 |
1,754 |
3.5 |
11,061 |
11.4 |
5.9 |
4,050 |
2,114 |
12,287 |
8.4 |
4.8 |
3,337 |
1,892 |
3.0 |
12,388 |
10.5 |
5.6 |
4,188 |
2,217 |
14,299 |
7.7 |
4.4 |
3,547 |
2,033 |
2.5 |
14,728 |
10.1 |
5.1 |
4,772 |
2,423 |
17,178 |
6.9 |
4.0 |
3,801 |
2,219 |
Notes: 1Values are rounded to nearest thousand
which may cause apparent discrepancies. 2MRE cut-off: 3.5 g/t Au.
3The cut-off grade variation is not applicable to the material in
the Stockpiles.
Qualified Person
The technical report entitled, "Mineral Resource
Estimate Update for the Windfall Project, Eeyou Istchee James Bay,
Québec, Canada" and dated September 14, 2022 with an effective date
of June 7, 2022, was prepared for Osisko by BBA Inc. (Pierre-Luc
Richard, M.Sc., P.Geo (OGQ#1119) and Mathieu Belisle, P. Eng.
(OIQ#128549)). Mr. Richard is an employee of PLR Resources Inc.,
subcontracted by BBA Inc. for purposes of the technical report and
Mr. Belisle is an employee of BBA Inc. Each of Pierre-Luc Richard
and Mathieu Belisle is considered to be “independent” of Osisko for
purposes of Section 1.5 of NI 43-101. The scientific and technical
content in this news release has been reviewed and approved by Mr.
Mathieu Savard, P.Geo (OGQ #510), President of Osisko, who is a
"qualified person" (within the meaning of NI 43-101).
About Osisko Mining Inc.Osisko
is a mineral exploration company focused on the acquisition,
exploration, and development of precious metal resource properties
in Canada. Osisko holds a 100% interest in the high-grade Windfall
gold deposit located between Val-d'Or and Chibougamau in Québec and
holds a 100% undivided interest in a large area of claims in the
surrounding Urban Barry area and nearby Quévillon area (over 2,400
square kilometres).
Cautionary Statements Regarding
Mineral Resource EstimateReaders are cautioned
that mineral resources are not mineral reserves and that the
economic viability of mineral resources that are not mineral
reserves has not been demonstrated. The mineral resource estimate
described in this news release may be materially affected by
geology, environmental, permitting, legal, title, socio-political,
marketing or other relevant issues. The mineral resource estimate
is classified in accordance with the Canadian Institute of Mining,
Metallurgy and Petroleum's "CIM Definition Standards on Mineral
Resources and Mineral Reserves" incorporated by reference into NI
43-101. Readers are cautioned not to assume that further work on
the stated mineral resources will lead to mineral reserves that can
be mined economically.
CONTACT INFORMATION:John
BurzynskiPresident & Chief Executive OfficerTelephone (416)
363-8653
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