New analytical results are presented below (see Table 1), including 20 mineralized intercepts from 7 new drill holes. Infill intercepts are located inside the 2024 MRE model ( see November 14, 2024 news release ), and are focused on upgrading inferred mineral resources to measured or indicated categories, as applicable. Expansion intercepts are located outside the 2024 MRE model and may potentially lead to additional resources that will be classified appropriately within the next MRE update. Some of the reported intercepts have contiguous shallower infill as well as deeper expansion (noted on Table 1 below as "Both**"). Maps showing hole locations are available at www.osiskometals.com .
Highlights:
- Drill hole 30-1096
- 730.7 metres averaging 0.29% Cu (infill and expansion)
- Drill hole 30-1085
- 219.0 metres averaging 0.41% Cu (infill)
- 754.5 metres averaging 0.24% Cu (infill and expansion)
- Drill hole 30-1092
- 331.5 metres averaging 0.37% Cu (expansion)
- Drill hole 30-1095
- 309.5 metres averaging 0.26% Cu (infill)
- Drill hole 30-1098
- 115.0 metres averaging 0.29% Cu (infill)
- 124.5 metres averaging 0.20% Cu (expansion)
- Drill hole 30-1099
- 614.7 metres averaging 0.23% Cu (infill and expansion)
- Drill hole 30-0872
- 92.1 metres averaging 0.24% Cu (expansion)
- 47.2 metres averaging 1.14% Cu (expansion)
Table 1: Infill and Expansion Drilling Results
| DDH No. | From (m) | To (m) | Length (m) | Cu % | Ag g/t | Mo % | CuEq* | Type** |
| 30-0872 | 167.6 | 259.7 | 92.1 | 0.24 | 3.05 | | 0.25 | Expansion |
| And | 342.0 | 389.2 | 47.2 | 1.14 | 11.84 | | 1.22 | Expansion |
| 30-1085 | 3.0 | 222.0 | 219.0 | 0.41 | 2.79 | | 0.44 | Infill |
| And | 355.5 | 1110 | 754.5 | 0.24 | 1.63 | 0.019 | 0.32 | Both |
| (including) | 355.5 | 763.3 | 407.8 | 0.21 | 1.49 | 0.020 | 0.30 | Infill |
| (including) | 763.3 | 1110.0 | 346.7 | 0.27 | 1.79 | 0.019 | 0.36 | Expansion |
| 30-1092 | 15.0 | 346.5 | 331.5 | 0.37 | 3.21 | | 0.39 | Expansion |
| 30-1095 | 15.0 | 43.0 | 28.0 | 0.22 | 1.75 | | 0.23 | Infill |
| And | 57.0 | 366.5 | 309.5 | 0.26 | 2.11 | 0.007 | 0.30 | Infill |
| And | 425.9 | 482.0 | 56.1 | 0.23 | 1.70 | | 0.24 | Expansion |
| And | 524.7 | 550.5 | 21.9 | 0.42 | 2.04 | | 0.43 | Expansion |
| 30-1096 | 27.0 | 78.0 | 51.0 | 0.21 | 1.40 | | 0.22 | Infill |
| And | 129.0 | 177.0 | 48.0 | 0.17 | 1.20 | | 0.18 | Infill |
| And | 331.5 | 1062.2 | 730.7 | 0.29 | 1.60 | 0.032 | 0.42 | Both |
| (including) | 331.5 | 727.5 | 396.0 | 0.21 | 1.45 | 0.032 | 0.34 | Infill |
| (including) | 727.5 | 1062.2 | 334.7 | 0.39 | 1.79 | 0.032 | 0.52 | Expansion |
| 30-1098 | 36.0 | 141.0 | 104.5 | 0.20 | 2.25 | | 0.21 | Infill |
| And | 255.0 | 288.0 | 33.0 | 0.21 | 1.18 | | 0.22 | Infill |
| And | 330.0 | 445.5 | 115.0 | 0.29 | 2.18 | 0.017 | 0.36 | Infill |
| And | 606.0 | 730.5 | 124.5 | 0.20 | 1.57 | 0.014 | 0.26 | Expansion |
| And | 753.0 | 813.0 | 60.0 | 0.35 | 2.88 | 0.006 | 0.39 | Expansion |
| 30-1099 | 31.5 | 66.0 | 34.5 | 0.22 | 1.08 | | 0.23 | Infill |
| And | 105.3 | 720.0 | 614.7 | 0.23 | 1.59 | 0.016 | 0.30 | Both |
| (including) | 105.3 | 578.0 | 472.7 | 0.23 | 1.61 | 0.017 | 0.30 | Infill |
| (including) | 578.0 | 720.0 | 142.0 | 0.23 | 1.52 | 0.015 | 0.30 | Expansion |
| And | 862.2 | 1000.5 | 138.0 | 0.13 | 1.01 | 0.028 | 0.24 | Expansion |
| | | | | | | | | |
* See explanatory notes below on copper equivalent values and Quality Assurance / Quality Control.
** "Both" indicates drill holes that have contiguous shallower infill as well as deeper expansion intercepts.
Discussion
Drill hole 30-0872 was an old Noranda hole from the 1990s from which core was recovered and analyzed. The hole is located 440 metres south of the southern limit of 2024 MRE model and returned 92.1 metres averaging 0.24% Cu and 3.05 g/t Ag followed by a higher grade second intercept of 47.2 metres averaging 1.14% Cu and 11.8 g/t Ag (at the level of the C Zone skarn horizon), extending mineralization to a vertical depth of 390 metres. The first intercept starts at a depth of 168 metres and the overlying stratigraphy (Indian Cove hornfels) is unmineralized, but this waste material may be included as necessary strip in the next Whittle pit shell.
Drill hole 30-1085, located on top of Copper Mountain near the central part of the 2024 MRE model, intersected 219.0 metres averaging 0.41% Cu and 2.79 g/t Ag (infill), followed by a second intercept (starting 130 metres deeper) of 754.5 metres averaging 0.24% Cu, 1.63 g/t Ag and 0.019% Mo (both infill and expansion at depth).This hole extends mineralization near the centre of the deposit to a vertical depth of 1110 metres.
Drill hole 30-1092 is located 230 metres south of the southern limit of 2024 MRE model and returned 331.5 metres averaging 0.37% Cu and 3.21 g/t Ag (from surface down to the P4 stratigraphic level below the C Zone). This hole is located approximately 15 metres west of previously-reported hole 30-1067, which had failed to drill through a pillar of the B Zone.
Drill hole 30-1095, located in the south-central part of the 2024 MRE model, intersected 309.5 metres averaging 0.26% Cu and 2.11 g/t Ag (infill). This was followed by 56.1 metres averaging 0.23% Cu and 1.70 g/t Ag and then by another 21.9 metres averaging 0.42% Cu and 2.04 g/t Ag (both expansion), extending mineralization to a vertical depth of 550 metres.
Drill hole 30-1096, located in the central part of the 2024 MRE model, intersected two short (51 and 48 metre-long) mineralized zones, followed by 730.7 metres averaging 0.29% Cu, 1.60 g/t Ag, and 0.032% Mo (0.42% CuEq). The latter includes an expansion lower intercept, below the base of the 2024 MRE model, of 334.7 metres averaging 0.39% Cu, 1.79 g/t Ag, and 0.032% Mo (0.52% CuEq). This hole extends mineralization to a vertical depth of 1062 metres.
Drill hole 30-1098, located near the western margin of the 2024 MRE model, intersected 104.5 metres averaging 0.20% Cu and 2.25 g/t Ag (infill), followed by 115.0 metres averaging 0.29% Cu and 2.18 g/t Ag (infill). This was followed by 124.0 metres averaging 0.20% Cu and 1.57 g/t Ag and then by another 60.0 metres averaging 0.35% Cu and 2.88 g/t Ag (both expansion), extending mineralization to a vertical depth of 813 metres.
Drill hole 30-1099, located near the central part of the 2024 MRE model, adjacent to the Copper Mountain pit, intersected a short (34-metre-long) mineralized zone followed by 614.7 metres averaging 0.23% Cu, 1.59 g/t Ag, and 0.016% Mo (both infill and expansion), followed by a third intersection of 138 metres that averaged 0.13% Cu, 1.01 g/t Ag, and 0.028% Mo (expansion), extending mineralization in the porphyry core of the deposit to a vertical depth of 1000 metres.
Mineralization at Gaspé Copper is of porphyry copper/skarn type and occurs as disseminations and stockworks of chalcopyrite with pyrite or pyrrhotite and minor bornite and molybdenite. At least five retrograde vein/stockwork mineralizing events have been recognized at Copper Mountain, which overprint earlier prograde skarn and porcellanite-hosted mineralization throughout the Gaspé Copper system. Porcellanite is a historical mining term used to describe bleached, pale green to white potassic-altered hornfels. Subvertical stockwork mineralization dominates at Copper Mountain whereas prograde bedding-replacement mineralization, that is mostly stratigraphically controlled, dominates in the area of Needle Mountain, Needle East, and Copper Brook. High molybdenum grades (up to 0.5% Mo) were locally obtained in both the C Zone and E Zone skarns away from Copper Mountain.
The 2022 to 2024 Osisko Metals drill programs were focused on defining open-pit resources within the Copper Mountain stockwork mineralization ( see May 6, 2024 MRE press release ). Extending the resource model south of Copper Mountain into the poorly-drilled prograde skarn/porcellanite portion of the system subsequently led to a significantly increased resource, mostly in the Inferred category ( see November 14, 2024 MRE press release ).
The current drill program is designed to convert the November 2024 MRE to Measured and Indicated categories, as well as test the expansion of the system deeper into the stratigraphy and laterally to the south and southwest towards Needle East and Needle Mountain respectively. The November 2024 MRE was limited at depth to the base of the L1 skarn horizon (C Zone), and all mineralized intersections below this horizon represent potential depth extensions to the deposit, to be included in the next scheduled MRE update in Q1 2026.
All holes are being drilled sub-vertically into the altered calcareous stratigraphy which dips 20 to 25 degrees to the north. The L1 (C Zone) the L2 (E Zone) skarn/marble horizons were intersected in most holes, as well as intervening porcellanites that host the bulk of the disseminated copper mineralization.
Table 2: Drill hole locations
| DDH No. | Azimuth (°) | Dip (°) | Length (m) | UTM E | UTM N | Elevation |
| 30-0872 | 0.00 | -90.00 | 594.3 | 316531.1 | 5425181.2 | 706.3 |
| 30-1085 | 0.00 | -90.00 | 1110.0 | 316020.0 | 5426400.0 | 742.5 |
| 30-1092 | 0.00 | -90.00 | 741.0 | 316342.0 | 5425425.0 | 609.0 |
| 30-1095 | 0.00 | -90.00 | 696.0 | 316409.1 | 5425733.0 | 572.8 |
| 30-1096 | 0.00 | -90.00 | 1069.0 | 316198.0 | 5426305.0 | 753.3 |
| 30-1098 | 0.00 | -90.00 | 861.0 | 316034.0 | 5425948.0 | 600.5 |
| 30-1099 | 0.00 | -90.00 | 1041.0 | 315700.0 | 5426462.0 | 603.7 |
| | | | | | | |
Explanatory note regarding copper-equivalent grades
Copper Equivalent grades are expressed for purposes of simplicity and are calculated taking into account: 1) metal grades; 2) estimated long-term prices of metals: US$4.25/lb copper, $20.00/lb molybdenum and US$24/oz silver; 3) estimated recoveries of 92%, 70% and 70% for Cu, Mo and Ag respectively; and 4) net smelter return value of metals as percentage of the price, estimated at 86.5%, 90.7% and 75.0% for Cu, Mo and Ag respectively.
Qualified Person
The scientific and technical content of this news release has been reviewed and approved by Mr. Bernard-Olivier Martel, P. Geo. (OGQ 492), an independent "qualified person" as defined by National Instrument 43-101 – Standards of Disclosure for Mineral Projects ("NI 43-101").
Quality Assurance / Quality Control
Mineralized intervals reported herein are calculated using an average 0.12% CuEq lower cut-off over contiguous 20-metre intersections (shorter intervals as the case may be at the upper and lower limits of reported intervals). Intervals of 20 metres or less are not reported unless indicating significantly higher grades . True widths are estimated at 90 – 92% of the reported core length intervals.
Osisko Metals adheres to a strict QA/QC program for core handling, sampling, sample transportation and analyses, including insertion of blanks and standards in the sample stream. Drill core is drilled in HQ or NQ diameter and securely transported to its core processing facility on site, where it is logged, cut and sampled. Samples selected for assay are sealed and shipped to ALS Canada Ltd.'s preparation facility in Sudbury. Sample preparation details (code PREP-31DH) are available on the ALS Canada website. Pulps are analyzed at the ALS Canada Ltd. facility in North Vancouver, BC. All samples are analyzed by four acid digestion followed by both ICP-AES and ICP-MS for Cu, Mo and Ag.
Option Grant
The Company announces that, effective August 12, 2025, it has granted to an employee of the Company an aggregate of 125,000 stock options ("Options") pursuant to the Osisko Metals omnibus equity incentive plan.
The Options have an exercise price of $0.44 per share and a five-year term from the date of grant, and vest annually in equal thirds beginning on the first anniversary of the date of grant.
About Osisko Metals
Osisko Metals Incorporated is a Canadian exploration and development company creating value in the critical metals sector, with a focus on copper and zinc. The Company acquired a 100% interest in the past-producing Gaspé Copper mine from Glencore Canada Corporation in July 2023. The Gaspé Copper mine is located near Murdochville in Québec ' s Gaspé Peninsula. The Company is currently focused on resource expansion of the Gaspé Copper system, with current Indicated Mineral Resources of 824 Mt averaging 0.34% CuEq and Inferred Mineral Resources of 670 Mt averaging 0.38% CuEq (in compliance with NI 43-101). For more information, see Osisko Metals' November 14, 2024 news release entitled "Osisko Metals Announces Significant Increase in Mineral Resource at Gaspé Copper". Gaspé Copper hosts the largest undeveloped copper resource in eastern North America, strategically located near existing infrastructure in the mining-friendly province of Québec.
In addition to the Gaspé Copper project, the Company is working with Appian Capital Advisory LLP through the Pine Point Mining Limited joint venture to advance one of Canada ' s largest past-producing zinc mining camps, the Pine Point project, located in the Northwest Territories. The current mineral resource estimate for the Pine Point project consists of Indicated Mineral Resources of 49.5 Mt averaging 5.52% ZnEq and Inferred Mineral Resources of 8.3 Mt averaging 5.64% ZnEq (in compliance with NI 43-101). For more information, see Osisko Metals ' June 25, 2024 news release entitled "Osisko Metals releases Pine Point mineral resource estimate: 49.5 million tonnes of indicated resources at 5.52% ZnEq". The Pine Point project is located on the south shore of Great Slave Lake, NWT, close to infrastructure, with paved road access, an electrical substation and 100 kilometers of viable haul roads.
For further information on this news release, visit www.osiskometals.com or contact:
Don Njegovan, President
Email: info@osiskometals.com
Phone: (416) 500-4129
Cautionary Statement on Forward-Looking Information
This news release contains "forward-looking information" within the meaning of applicable Canadian securities legislation based on expectations, estimates and projections as at the date of this news release. Any statement that involves predictions, expectations, interpretations, beliefs, plans, projections, objectives, assumptions, future events or performance (often, but not always, using phrases such as "expects", or "does not expect", "is expected", "interpreted", "management's view", "anticipates" or "does not anticipate", "plans", "budget", "scheduled", "forecasts", "estimates", "potential", "feasibility", "believes" or "intends" or variations of such words and phrases or stating that certain actions, events or results "may" or "could", "would", "might" or "will" be taken, occur or be achieved) are not statements of historical fact and may be forward-looking information and are intended to identify forward-looking information. This news release contains forward-looking information pertaining to, among other things: the tax treatment of the FT Units; the timing of incurring the Qualifying Expenditures and the renunciation of the Qualifying Expenditures; the ability to advance Gaspé Copper to a construction decision (if at all); the ability to increase the Company's trading liquidity and enhance its capital markets presence; the potential re-rating of the Company; the ability for the Company to unlock the full potential of its assets and achieve success; the ability for the Company to create value for its shareholders; the advancement of the Pine Point project; the anticipated resource expansion of the Gaspé Copper system and Gaspé Copper hosting the largest undeveloped copper resource in eastern North America.
Forward-looking information is not a guarantee of future performance and is based upon a number of estimates and assumptions of management, in light of management's experience and perception of trends, current conditions and expected developments, as well as other factors that management believes to be relevant and reasonable in the circumstances, including, without limitation, assumptions about: the ability of exploration results, including drilling, to accurately predict mineralization; errors in geological modelling; insufficient data; equity and debt capital markets; future spot prices of copper and zinc; the timing and results of exploration and drilling programs; the accuracy of mineral resource estimates; production costs; political and regulatory stability; the receipt of governmental and third party approvals; licenses and permits being received on favourable terms; sustained labour stability; stability in financial and capital markets; availability of mining equipment and positive relations with local communities and groups. Forward-looking information involves risks, uncertainties and other factors that could cause actual events, results, performance, prospects and opportunities to differ materially from those expressed or implied by such forward-looking information. Factors that could cause actual results to differ materially from such forward-looking information are set out in the Company's public disclosure record on SEDAR+ (www.sedarplus.ca) under Osisko Metals' issuer profile. Although the Company believes that the assumptions and factors used in preparing the forward-looking information in this news release are reasonable, undue reliance should not be placed on such information, which only applies as of the date of this news release, and no assurance can be given that such events will occur in the disclosed time frames or at all. The Company disclaims any intention or obligation to update or revise any forward-looking information, whether as a result of new information, future events or otherwise, other than as required by law.
Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accept responsibility for the adequacy or accuracy of this news release. No stock exchange, securities commission or other regulatory authority has approved or disapproved the information contained herein.
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Figure 3. Location of recent drilling at Corner Bay 