OSISKO INTERSECTS 115 g/t Au OVER 5.6 METRES AT WINDFALL

(Toronto, September 1, 2020) Osisko Mining Inc. (OSK:TSX. “Osisko” or the “Corporation”) is pleased to provide new analytical results from the ongoing definition and expansion drill program at its 100% owned Windfall gold project located in the Abitibi greenstone belt, Urban Township, Eeyou Istchee James Bay, Québec.

Drilling is currently focused on the Lynx deposit, the main mineralized zones, and down plunge exploration in the central areas of the mineralized system.  Osisko President and Chief Executive Officer John Burzynski commented: “We continue to be impressed with the strong results from Lynx, and are seeing good possibilities to extend the mineralization in the known zones.  While we are focused on completing the infill drilling, the deposit continues to grow in the process.”

Infill results are presented below. Significant new analytical results from 96 intercepts in 38 new drill holes and 26 wedges include: 115 g/t Au over 5.6 metres and 25.6 g/t Au over 5.0 metres in OSK-W-20-2256-W2; 57.9 g/t Au over 3.6 metres in OSK-W-20-2139-W9; 94.4 g/t Au over 2.0 metres in WST-20-0389A; 54.4 g/t Au over 3.3 metres in OSK-W-20-2260-W2; 77.3 g/t Au over 2.3 metres in OSK-W-20-2268-W3; 42.8 g/t Au over 3.1 metresin OSK-W-20-2243-W4; 31.2 g/ Au over 4.1 metres OSK-W-20-2252-W2; 62.2 g/t Au over 2.0 metres in OSK-W-20-2299; and 47.4 g/t Au over 2.5 metres in WST-20-0471.  Maps showing hole locations and full analytical results are available at www.osiskomining.com.

 

Hole No. From (m) To (m) Interval (m) Au (g/t) uncut Au (g/t)         cut to 100 g/t Zone Corridor
OSK-W-18-1741-W1 847.0 849.7 2.7 7.02   Lynx 4 Lynx
including 848.2 848.7 0.5 33.1
OSK-W-19-1942 447.0 449.7 2.7 3.25   Lynx_323 Lynx
including 448.3 448.9 0.6 14.0
OSK-W-19-1963-W3 1401.0 1403.5 2.5 3.03   Lynx_345 Lynx
OSK-W-19-2059-W1 735.0 737.0 2.0 3.77   Lynx Lynx
  985.9 988.0 2.1 9.43   Lynx 4 Lynx
OSK-W-19-2139-W4 545.0 547.1 2.1 5.80   Triple Lynx Triple Lynx
including 546.5 547.1 0.6 18.4
OSK-W-19-2221 775.0 777.0 2.0 5.48   Lynx 4 Lynx
including 775.7 776.1 0.4 26.4
OSK-W-20-1104-W7 502.0 504.3 2.3 34.6   Lynx Lynx
including 503.0 504.0 1.0 79.1
OSK-W-20-1731-W5 607.0 609.0 2.0 11.9   Lynx Lynx
OSK-W-20-2059-W3 992.8 995.0 2.2 7.28   Lynx 4 Lynx
OSK-W-20-2059-W4 1077.0 1079.0 2.0 3.40   Lynx 4 Lynx
including 1077.7 1078.0 0.3 17.4
OSK-W-20-2139-W8 565.0 567.4 2.4 9.28   Triple Lynx Triple Lynx
including 566.2 566.8 0.6 36.9
OSK-W-20-2139-W9 908.9 912.5 3.6 57.9 15.6 Lynx_361 Triple Lynx
including 912.0 912.5 0.5 405 100
OSK-W-20-2170-W5 980.5 982.5 2.0 3.28   Lynx_363 Triple Lynx
OSK-W-20-2217-W4 768.7 775.0 6.3 9.98   Triple Lynx Triple Lynx
including 772.8 773.6 0.8 52.3
  781.0 783.0 2.0 4.08   Triple Lynx Triple Lynx
  793.6 795.8 2.2 4.42   Triple Lynx Triple Lynx
including 795.2 795.5 0.3 24.4
  917.0 919.0 2.0 10.9   Triple Lynx Triple Lynx
including 918.0 918.3 0.3 71.9
  972.0 974.0 2.0 22.8   Triple Lynx Triple Lynx
including 973.0 974.0 1.0 43.9
  981.0 983.0 2.0 29.2 15.6 Triple Lynx Triple Lynx
including 981.3 981.6 0.3 191 100
OSK-W-20-2243-W3 1016.0 1018.0 2.0 16.7   Lynx_374 Triple Lynx
including 1016.0 1017.0 1.0 33.3
OSK-W-20-2243-W4 773.4 776.5 3.1 42.8 20.9 Lynx_361 Triple Lynx
including 774.8 775.1 0.3 326 100
  829.0 831.0 2.0 4.09   Lynx_364 Triple Lynx
OSK-W-20-2249 374.6 376.6 2.0 3.44   Caribou Caribou
OSK-W-20-2250-W1 973.0 975.0 2.0 48.6 15.4 Triple Lynx Triple Lynx
including 973.5 973.8 0.3 321 100
OSK-W-20-2250-W3 748.0 750.0 2.0 3.11   Triple Lynx Triple Lynx
  756.4 758.5 2.1 11.5   Triple Lynx Triple Lynx
including 756.8 757.1 0.3 42.9
OSK-W-20-2250-W4 744.0 746.0 2.0 14.7   Lynx_371 Triple Lynx
including 744.0 745.0 1.0 27.3
  764.7 767.0 2.3 10.8   Lynx_361 Triple Lynx
including 765.7 766.4 0.7 33.1
OSK-W-20-2252-W1 832.0 834.6 2.6 27.6 13.2 Lynx_371 Triple Lynx
including 834.3 834.6 0.3 225 100
  861.0 863.0 2.0 4.86   Triple Lynx Triple Lynx
OSK-W-20-2252-W2 837.0 841.2 4.2 12.9   Triple Lynx Triple Lynx
including 838.8 839.5 0.7 59.7
  856.0 860.1 4.1 31.2 12.7 Lynx_371 Triple Lynx
including 859.7 860.1 0.4 290 100
  1154.0 1156.8 2.8 5.37   Lynx_374 Triple Lynx
OSK-W-20-2252-W3 940.1 943.0 2.9 4.33   Lynx_363 Triple Lynx
including 940.1 940.4 0.3 21.3
OSK-W-20-2253 554.1 556.4 2.3 5.60   Triple Lynx Triple Lynx
including 554.1 555.0 0.9 12.2
  596.7 599.0 2.3 3.01   Triple Lynx Triple Lynx
including 598.7 599.0 0.3 16.4
OSK-W-20-2256 830.7 833.4 2.7 4.61   Triple Lynx Triple Lynx
OSK-W-20-2256-W2 855.0 859.0 4.0 4.21   Triple Lynx Triple Lynx
  874.7 880.3 5.6 115 16.0 Lynx_361 Triple Lynx
including 876.5 877.1 0.6 1020 100
  931.9 936.0 4.1 3.78   Lynx_369 Triple Lynx
including 931.9 932.2 0.3 12.0
and 935.0 936.0 1.0 8.94
  940.0 945.0 5.0 25.6   Lynx_369 Triple Lynx
including 940.0 941.0 1.0 53.4
OSK-W-20-2260-W1 939.0 942.0 3.0 6.19   Lynx_369 Triple Lynx
including 939.0 940.0 1.0 14.0
OSK-W-20-2260-W2 838.7 842.0 3.3 54.4   Lynx_361 Triple Lynx
including 838.7 840.5 1.8 88.2
  878.0 880.0 2.0 4.25   Triple Lynx Triple Lynx
  891.0 893.0 2.0 12.2   Lynx_363 Triple Lynx
including 891.8 892.3 0.5 36.5
  909.9 912.0 2.1 4.77   Lynx_364 Triple Lynx
  941.0 943.0 2.0 10.1   Triple Lynx Triple Lynx
OSK-W-20-2266-W1 767.5 769.9 2.4 4.08   Lynx_363 Triple Lynx
OSK-W-20-2268-W1 812.5 814.5 2.0 4.64   Triple Lynx Triple Lynx
including 813.7 814.1 0.4 12.1
OSK-W-20-2268-W3 779.0 781.3 2.3 77.3 18.6 Lynx_364 Triple Lynx
including 780.7 781.0 0.3 550 100
  790.9 796.0 5.1 4.60   Triple Lynx Triple Lynx
OSK-W-20-2269 510.2 513.0 2.8 8.05   Lynx Lynx
including 510.2 510.5 0.3 72.3
OSK-W-20-2271 775.0 777.0 2.0 7.99   Lynx Lynx
  1108.6 1114.2 5.6 13.2   Lynx 4 Lynx
including 1110.8 1111.5 0.7 51.6
OSK-W-20-2275 670.3 672.4 2.1 4.13   Triple Lynx Triple Lynx
including 670.3 670.7 0.4 10.6
OSK-W-20-2276 83.6 85.9 2.3 3.11   F17_6003 F-17
including 84.7 85.0 0.3 18.6
  94.0 96.3 2.3 7.06   F17_6003 F-17
including 94.6 95.0 0.4 38.0
  98.5 102.0 3.5 4.09   F17_6005 F-17
OSK-W-20-2278 105.5 107.5 2.0 6.36   F17_6002 F-17
including 106.4 106.9 0.5 18.7
OSK-W-20-2281 125.0 129.0 4.0 3.08   F17_6003 F-17
including 125.0 126.0 1.0 7.28
and 128.5 129.0 0.5 7.46
OSK-W-20-2288 169.6 172.0 2.4 6.44   Caribou_2527 Caribou
  193.0 195.0 2.0 13.8   Caribou_2527 Caribou
including 194.0 194.6 0.6 24.5
  204.7 206.8 2.1 3.77   Caribou_2527 Caribou
OSK-W-20-2289 98.6 101.0 2.4 10.7   F17_6003 F-17
including 100.0 101.0 1.0 22.1
OSK-W-20-2291 89.7 92.0 2.3 18.2   F17_6003 F-17
including 89.7 90.5 0.8 24.3
and 90.5 91.3 0.8 26.7
OSK-W-20-2293 114.6 117.3 2.7 5.30   F17_6003 F-17
including 114.6 114.9 0.3 11.0
and 116.8 117.3 0.5 10.1
OSK-W-20-2298 487.0 489.0 2.0 11.2   Lynx_356 Lynx
including 487.7 488.6 0.9 24.6
OSK-W-20-2299 134.7 136.7 2.0 62.2 41.5 F17_6003 F-17
including 135.1 135.9 0.8 152 80.0
WST-19-0225 325.0 327.0 2.0 5.17   Caribou Caribou
WST-19-0238 89.1 91.1 2.0 4.32   Lynx Lynx
WST-20-0308 148.5 150.7 2.2 5.98   Lynx Lynx
including 150.1 150.7 0.6 21.5
WST-20-0318 258.0 260.5 2.5 6.53   Lynx 4 Lynx
including 260.0 260.5 0.5 22.9
WST-20-0335 32.0 34.3 2.3 4.51   Lynx Lynx
WST-20-0342A 172.6 175.0 2.4 5.15   Lynx_304 Lynx
including 174.6 175.0 0.4 18.0
WST-20-0343 60.9 63.2 2.3 11.0   Lynx_311 Lynx
including 60.9 61.3 0.4 60.0
  86.9 88.9 2.0 3.90   Lynx_304 Lynx
WST-20-0345 1.0 4.1 3.1 11.4   Mallard Mallard
including 1.0 2.5 1.5 20.9
WST-20-0350 41.6 44.4 2.8 9.18   Lynx_325 Lynx
including 41.6 42.4 0.8 29.3
  113.5 116.0 2.5 17.6   Lynx_304 Lynx
including 114.0 114.9 0.9 45.7
WST-20-0351 96.0 98.0 2.0 4.25   Lynx_304 Lynx
including 96.9 97.6 0.7 10.9
WST-20-0388 284.6 287.5 2.9 38.8 23.2 Lynx 4 Lynx
including 286.9 287.5 0.6 176 100
WST-20-0389A 162.3 164.3 2.0 94.4 50.9 Lynx_304 Lynx
including 163.0 164.0 1.0 187 100
  169.3 171.5 2.2 23.5 14.9 Lynx_304 Lynx
including 169.6 169.9 0.3 163 100
  322.0 324.3 2.3 4.44   Lynx_321 Lynx
including 323.2 323.9 0.7 14.4
WST-20-0396 138.5 141.1 2.6 3.54   Lynx HW Lynx
including 140.3 140.6 0.3 20.2
WST-20-0397 136.6 138.6 2.0 10.7   Lynx_301 Lynx
including 137.7 138.1 0.4 52.1
WST-20-0417 368.0 370.0 2.0 3.21   Lynx 4 Lynx
WST-20-0438 137.0 139.0 2.0 29.6 15.2 Lynx Lynx
including 137.6 137.9 0.3 197 100
WST-20-0442 239.0 241.0 2.0 3.09   Lynx 4 Lynx
WST-20-0446 167.9 170.0 2.1 34.2 29.9 Lynx_304 Lynx
including 167.9 168.5 0.6 115 100
  349.0 352.0 3.0 9.32   Lynx HW Lynx
WST-20-0462 263.8 266.0 2.2 7.77   Lynx Lynx
WST-20-0468 143.8 146.7 2.9 3.18   Lynx_321 Lynx
including 143.8 144.7 0.9 6.34
WST-20-0471 126.0 128.5 2.5 47.4 32.0 Lynx_321 Lynx
including 127.7 128.5 0.8 148 100
  154.9 157.0 2.1 12.4   Lynx_315 Lynx
including 155.8 156.5 0.7 36.0

 

Notes: True widths are estimated at 55 – 80% of the reported core length interval. See “Quality Control and Reporting Protocols” below.

 

Drill hole location

Hole Number Azimuth (°) Dip (°) Length (m) UTM E UTM N Elevation Section
OSK-W-18-1741-W1 144 -48 1083 453328 5435466 406 3725
OSK-W-19-1942 128 -54 930 453315 5435390 403 3675
OSK-W-19-1963-W3 123 -58 1460 453761 5435816 401 4275
OSK-W-19-2059-W1 131 -52 1041 453446 5435477 400 3825
OSK-W-19-2139-W4 115 -52 1011 452980 5435549 420 3450
OSK-W-19-2221 134 -49 789 453422 5435465 401 3800
OSK-W-20-1104-W7 142 -50 867 453383 5435455 402 3775
OSK-W-20-1731-W5 139 -51 1028 453383 5435518 409 3800
OSK-W-20-2059-W3 131 -52 1029 453446 5435477 400 3825
OSK-W-20-2059-W4 131 -52 1092 453446 5435477 400 3825
OSK-W-20-2139-W8 115 -52 1125 452980 5435549 420 3450
OSK-W-20-2139-W9 115 -52 1152 452980 5435549 420 3450
OSK-W-20-2170-W5 128 -59 1148 453425 5435657 413 3900
OSK-W-20-2217-W4 134 -48 1134 452943 5435566 419 3425
OSK-W-20-2243-W3 122 -54 1062 453087 5435527 418 3550
OSK-W-20-2243-W4 122 -54 1121 453087 5435527 418 3550
OSK-W-20-2249 132 -56 759 452775 5435192 411 3100
OSK-W-20-2250-W1 132 -57 1060 453128 5435505 420 3575
OSK-W-20-2250-W3 132 -57 1170 453128 5435505 420 3575
OSK-W-20-2250-W4 132 -57 1005 453128 5435505 420 3575
OSK-W-20-2252-W1 129 -54 1119 453241 5435694 415 3750
OSK-W-20-2252-W2 129 -54 1194 453241 5435694 415 3750
OSK-W-20-2252-W3 129 -53 1062 453241 5435694 415 3750
OSK-W-20-2253 128 -54 924 452831 5435326 413 3225
OSK-W-20-2256 125 -51 1179 453160 5435686 414 3675
OSK-W-20-2256-W2 125 -51 957 453160 5435686 414 3675
OSK-W-20-2260-W1 127 -48 1140 453199 5435669 413 3700
OSK-W-20-2260-W2 127 -48 1191 453199 5435669 413 3700
OSK-W-20-2266-W1 128 -55 1116 453069 5435476 418 3500
OSK-W-20-2268-W1 127 -55 1073 453148 5435489 418 3575
OSK-W-20-2268-W3 127 -55 975 453148 5435489 418 3575
OSK-W-20-2269 133 -50 933 452972 5435211 416 3275
OSK-W-20-2271 120 -53 1247 453462 5435683 410 3950
OSK-W-20-2275 127 -49 1094 452886 5435584 409 3400
OSK-W-20-2276 149 -47 138 452639 5435493 405 3125
OSK-W-20-2278 158 -53 186 452632 5435522 405 3150
OSK-W-20-2281 149 -47 171 452630 5435550 404 3150
OSK-W-20-2288 146 -51 749 452875 5435181 410 3175
OSK-W-20-2289 149 -47 141 452664 5435521 407 3175
OSK-W-20-2291 158 -48 131 452692 5435522 410 3200
OSK-W-20-2293 145 -44 183 452658 5435549 407 3175
OSK-W-20-2298 137 -50 596 452846 5435060 407 3100
OSK-W-20-2299 150 -49 201 452681 5435584 404 3225
WST-19-0225 132 -9 329 452208 5434899 249 2475
WST-19-0238 173 12 97 453216 5435114 224 3450
WST-20-0308 172 -12 160 453292 5435139 163 3525
WST-20-0318 148 -52 502 453228 5435127 134 3475
WST-20-0335 141 -42 142 453411 5435230 113 3675
WST-20-0342A 116 -47 679 453452 5435266 115 3725
WST-20-0343 158 8 177 453410 5435229 115 3675
WST-20-0345 136 -21 401 452282 5434975 263 2575
WST-20-0350 142 -31 175 453359 5435209 154 3625
WST-20-0351 142 -19 181 453359 5435209 154 3625
WST-20-0388 169 -55 516 453228 5435127 134 3475
WST-20-0389A 115 -46 616 453452 5435266 115 3725
WST-20-0396 158 20 165 453493 5435287 118 3775
WST-20-0397 150 26 162 453494 5435287 118 3775
WST-20-0417 138 -50 759 453228 5435126 134 3475
WST-20-0438 163 -16 145 453449 5435264 115 3725
WST-20-0442 134 -32 265 453494 5435287 116 3775
WST-20-0446 115 -49 613 453452 5435265 114 3725
WST-20-0462 152 -53 680 453227 5435125 134 3475
WST-20-0468 130 2 193 453494 5435287 117 3775
WST-20-0471 156 2 181 453493 5435287 117 3775

 

Lynx Zone

Mineralization occurs as grey to translucent quartz-carbonate-pyrite-tourmaline veins and pyrite replacement zones and stockworks. The vein-type is associated with haloes of pervasive sericite-pyrite ± silica alteration and contain sulphides (predominantly pyrite with minor amounts of chalcopyrite, sphalerite, galena, arsenopyrite, and pyrrhotite) and local visible gold. Replacement mineralization is associated with strong pervasive silica-sericite-ankerite ± tourmaline alteration and contains disseminated pyrite from trace to 80% with local visible gold. Pyrite stockworks can form envelopes that reach several tens of metres thick. Fuchsite alteration is common and is spatially constrained to near the gabbros. Mineralization occurs at or near geological contacts between felsic porphyritic or fragmental intrusions and the host rhyolites or gabbros and locally can be hosted along the gabbro-rhyolite contact.

 

Caribou Zone

Mineralization most commonly occurs in gold-bearing pyrite stockworks as well as semi-massive pyrite replacement zones associated with phyllic alteration (sericite-pyrite ± silica) with sulphides, pyrite dominated with minor chalcopyrite and sphalerite ranging from trace to up to 20%, and local visible gold. Mineralization is hosted in rhyolites or mafic-intermediate volcanics frequently at or near faults or the contact with felsic porphyritic intrusions.

 

F-Zone

Mineralization is hosted in sheared andesites with carbonate replacement or quartz veining and occurs as quartz ± ankerite veinlets or in shear zones as replacement, characterised by trace to 10% pyrite with local visible gold. Alteration is dominated by sericite-fuchsite-tourmaline-pyrite.

 

Mallard

Mineralization is hosted in sheared mafic volcanics with felsic porphyritic intrusions and occurs as veins associated with sericite-pyrite ± silica ± chlorite alteration and contains pyrite ranging from trace to 30% and local visible gold.

 

Qualified Person

The scientific and technical content of this news release has been reviewed, prepared and approved by Mr. Louis Grenier, M.Sc.A., P.Geo. (OGQ 800), Project Manager of Osisko’s Windfall Lake gold project, who is a “qualified person” as defined by National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“NI 43-101”).

 

Quality Control and Reporting Protocols

True width determination is estimated at 55-80% of the reported core length interval for the zone. Assays are uncut except where indicated. Intercepts occur within geological confines of major zones but have not been correlated to individual vein domains at this time. Reported intervals include minimum weighted averages of 3.0 g/t Au diluted over core lengths of at least 2.0 metres. All NQ core assays reported were obtained by either 1-kilogram screen fire assay or standard 50-gram fire-assaying-AA finish or gravimetric finish at (i) ALS Laboratories in Val d’Or, Québec, Thunder Bay, Ontario, Sudbury, Ontario or Vancouver, British Colombia, or (ii) Bureau Veritas in Timmins, Ontario. The 1-kilogram screen assay method is selected by the geologist when samples contain coarse gold or present a higher percentage of pyrite than surrounding intervals. Selected samples are also analyzed for multi-elements, including silver, using an Aqua Regia-ICP-AES method at ALS Laboratories. Drill program design, QualityAssurance/Quality Control (“QA/QC”) and interpretation of results is performed by qualified persons employing a QA/QC program consistent with NI 43-101 and industry best practices. Standards and blanks are included with every 20 samples for QA/QC purposes by the Corporation as well as the lab. Approximately 5% of sample pulps are sent to secondary laboratories for check assay.

 

About the Windfall Gold Deposit

The Windfall gold deposit is located between Val-d’Or and Chibougamau in Eeyou Istchee James Bay, Québec, Canada. The mineral resource defined by Osisko, as disclosed in the news release dated February 19, 2020 and supported by the technical report entitled “An updated mineral resource estimate for the Windfall Lake Project, Located in the Abitibi Greenstone Belt, Urban Township, Eeyou Istchee James Bay, Québec, Canada” and dated April 3, 2020 (with an effective date of January 3, 2020), and assuming a cut-off grade of 3.5 g/t, comprises 4,127,000 tonnes at 9.1 g/t Au (1,206,000 ounces) in the indicated mineral resource category and 14,532,000 tonnes at 8.40 g/t Au (3,938,000 ounces) in the inferred mineral resource category. The key assumptions, parameters and methods used to estimate the mineral resource estimate disclosed in the February 19,2020 news release are further described in the full technical report prepared by Micon International Limited (“Micon”) and BBA Inc (“BBA”), in accordance with NI 43-101 available on SEDAR (www.sedar.com) under the Corporation’s issuer profile. The Windfall gold deposit is currently one of the highest-grade resource-stage gold projects in Canada and has world-class scale. Mineralization occurs in three principal zones:Lynx, Main Zone, and Underdog. Mineralization is generally comprised of deformed sub-vertical zones plunging to the northeast. Vein-type or pyrite replacement-type styles of mineralization crosscut syn-volcanic host rocks and syn-deformation felsic porphyry intrusions and are spatially associated with the contacts of the intrusions. The deposit is well defined from surface to a depth of 1,200 metres and remains open along strike and at depth.Mineralization has been identified 30 metres from surface in some areas and as deep as 2,000 metres in others, with significant potential to extend mineralization down-plunge and at depth.

 

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 a100% undivided interest in a large area of claims in the surrounding Urban Barry area and nearby Quévillon area (over 2,700 square kilometres).

 

Cautionary Note Regarding Forward-Looking Information

This news release contains “forward-looking information” within the meaning of the applicable Canadian securities legislation that is based on expectations, estimates, projections and interpretations 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 to 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 the forward-looking information pertaining to, among other things: the Windfall gold deposit being one of the highest-grade resource-stage gold projects in Canada and having world-class scale; the key assumptions, parameters and methods used to estimate the mineral resource estimate; the prospects, if any, of the Windfall gold deposit; the timing and ability of Osisko, if at all, to publish a feasibility study for the Windfall gold deposit; the projected capital expenditures of mining activities at the Windfall gold deposit; upgrading an inferred mineral resource to a measured mineral resource or indicated mineral resource category; future drilling at the Windfall gold deposit; the deposit remaining open along strike to the northeast and at depth; significant high-grade zones (Lynx 4, Triple Lynx) remaining open down plunge; the plunge potential of the Lynx and Underdog zones; the significance of historic exploration activities and results. Such factors include, among others, risks relating to the ability of exploration activities (including drill results) to accurately predict mineralization; errors in management’s geological modelling; the ability of Osisko to complete further exploration activities, including drilling; property and royalty interests in the Windfall gold deposit; the ability of the Corporation to obtain required approvals; the results of exploration activities; risks relating to mining activities; the global economic climate; metal prices; dilution; environmental risks; and community and non-governmental actions. Although the forward-looking information contained in this news release is based upon what management believes, or believed at the time, to be reasonable assumptions, Osisko cannot assure shareholders and prospective purchasers of securities of the Corporation that actual results will be consistent with such forward-looking information, as there may be other factors that cause results not to be as anticipated, estimated or intended, and neither Osisko nor any other person assumes responsibility for the accuracy and completeness of any such forward-looking information. Osisko does not undertake, and assumes no obligation, to update or revise any such forward-looking statements or forward-looking information contained herein to reflect new events or circumstances, except as may be required by law.

 

CONTACT INFORMATION:

John Burzynski
President & Chief Executive Officer
Telephone (416) 363-8653