OSISKO INTERSECTS HIGH GRADE AT LYNX

Posted on December 18, 2019November 8, 2023 by Yannick Fradette

Including 33.5 g/t Au Over 10.5 Metres

(Toronto, December 18, 2019) Osisko Mining Inc. (OSK:TSX. “Osisko” or the “Corporation”) is pleased to provide new drilling 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.

The program is currently focused on the Lynx deposit, exploration on the main mineralized zones, and deep exploration in the central areas of the mineralized intrusive system. Twenty-two drills are active at Lynx and Triple Lynx, with another two drills conducting infill and exploration drilling on other areas of the deposit.

Osisko President and Chief Executive Officer John Burzynski commented: “Lynx and Triple Lynx continue to deliver strong results with infill drilling. We are seeing some wider intervals of high-grade material, which should have a very positive effect on the pending resource update.”

Significant new analytical results from 85 intercepts in 22 surface drill holes, 23 wedges and 2 extension focused on Lynx infill and expansion drilling are presented below. Additionally, 23 intercepts from 14 underground infill drill holes are included in the table below.

Intercepts from new results include: 248 g/t Au over 3.0 metres in OSK-19-1995; 337 g/t Au over 2.2 metres and 56.6 g/t Au over 4.2 metres in OSK-W-19-2120-W2; 174 g/t Au over 2.5 metres in OSK-W-19-2107-W1; 33.5 g/t Au over 10.5 metres in OSK-W-19-1166-W5; 104 g/t Au over 3.0 metres in OSK-W-19-2171; 24.9 g/t Au over 9.0 metres in OSK-W-19-2123-W1; 56.9 g/t Au over 3.8 metres in OSK-W-19-2139-W1; 35.0 g/t Au over 5.6 metres in OSK-W-19-2067-W2; 21.2 g/t Au over 5.5 metres in OSK-W-19-2139 and 54.4 g/t Au over 2.0 metres in WST-19-0249. Maps showing hole locations and full analytical results are available at www.osiskomining.com.

Surface Drilling

Hole No.	From (m)	To (m)	Interval (m)	Au (g/t) uncut	Au (g/t) cut to 100 g/t	Zone	Corridor
OSK-W-17-886	1066.0	1068.0	2.0	6.10		Triple Lynx	Triple Lynx
OSK-W-17-921	544.7	547.0	2.3	9.20		Lynx	Lynx
OSK-W-18-1104-W1	522.0	524.0	2.0	4.56		Lynx_321	Lynx
including	523.6	524.0	0.4	22.7		Lynx_321	Lynx
	532.3	537.4	5.1	3.60		Lynx	Lynx
including	537.1	537.4	0.3	28.9		Lynx	Lynx
OSK-W-19-1104-W2	468.6	471.0	2.4	4.55		Lynx_305	Lynx
including	469.7	470.4	0.7	14.8		Lynx_305	Lynx
	558.2	560.6	2.4	6.08		Lynx_321	Lynx
including	559.6	560.6	1.0	14.6		Lynx_321	Lynx
	826.0	828.2	2.2	7.59		Lynx_313	Lynx
including	827.2	827.7	0.5	31.7		Lynx_313	Lynx
	848.0	850.5	2.5	4.00		Lynx_327	Lynx
	853.3	855.7	2.4	12.0		Lynx_327	Lynx
including	855.3	855.7	0.4	46.8		Lynx_327	Lynx
	858.2	862.6	4.4	4.54		Lynx_327	Lynx
OSK-W-19-1104-W3	777.0	779.0	2.0	8.24		Lynx	Lynx
including	777.6	778.0	0.4	39.2		Lynx	Lynx
OSK-W-19-1166-W5	959.0	964.7	5.7	4.92		Lynx_333	Lynx
	974.9	985.4	10.5	33.5	23.0	Lynx_317	Lynx
including	974.9	975.8	0.9	197	100	Lynx_317	Lynx
and	984.6	985.4	0.8	130	100
	996.0	998.2	2.2	8.05		Lynx_330	Lynx
OSK-W-19-1169-W3	948.0	950.0	2.0	9.89		Lynx_333	Lynx
OSK-W-19-1181-W11	806.0	808.9	2.9	3.11		Lynx	Lynx
OSK-W-19-1193-W4	912.0	914.0	2.0	3.64		Lynx_314	Lynx
including	912.8	913.2	0.4	16.3		Lynx_314	Lynx
OSK-W-19-1272-W2	846.0	848.0	2.0	33.6		Triple Lynx	Triple Lynx
including	847.0	848.0	1.0	65.2		Triple Lynx	Triple Lynx
OSK-W-19-1272-W3	807.0	809.0	2.0	7.73		Triple Lynx	Triple Lynx
	842.0	856.6	14.6	6.15		Triple Lynx	Triple Lynx
including	854.5	856.6	2.1	16.5		Triple Lynx	Triple Lynx
	1140.3	1142.3	2.0	23.6		Triple Lynx	Triple Lynx
including	1140.9	1141.4	0.5	91.8		Triple Lynx	Triple Lynx
OSK-W-19-1414-W8	965.0	969.1	4.1	6.60		Lynx_330	Lynx
OSK-W-19-1731-W2	877.0	879.0	2.0	12.3		Lynx_313	Lynx
OSK-W-19-1949-W3	1295.0	1297.0	2.0	10.8		Lynx 4	Lynx
including	1295.5	1296.2	0.7	30.2		Lynx 4	Lynx
OSK-W-19-1969	305.0	307.0	2.0	7.82		Lynx corridor	Lynx
including	306.0	307.0	1.0	15.6		Lynx corridor	Lynx
OSK-W-19-1995	133.3	136.3	3.0	248	35.0	Lynx_335	Lynx
including	135.3	136.3	1.0	740	100	Lynx_335	Lynx
OSK-W-19-2026-W1	932.2	939.0	6.8	4.12		Triple Lynx	Triple Lynx
including	932.2	932.6	0.4	22.3		Triple Lynx	Triple Lynx
	1026.0	1028.9	2.9	4.88		Triple Lynx	Triple Lynx
including	1028.6	1028.9	0.3	22.0		Triple Lynx	Triple Lynx
	1058.0	1064.0	6.0	3.92		Triple Lynx	Triple Lynx
including	1063.1	1063.4	0.3	16.6		Triple Lynx	Triple Lynx
	1083.0	1085.1	2.1	6.74		Triple Lynx	Triple Lynx
including	1083.8	1084.1	0.3	37.3		Triple Lynx	Triple Lynx
OSK-W-19-2067	925.4	927.7	2.3	12.6		Triple Lynx	Triple Lynx
including	927.2	927.7	0.5	28.8		Triple Lynx	Triple Lynx
	1058.1	1060.8	2.7	6.85		Triple Lynx	Triple Lynx
including	1060.4	1060.8	0.4	24.4		Triple Lynx	Triple Lynx
OSK-W-19-2067-W2	986.0	991.6	5.6	35.0	33.2	Triple Lynx	Triple Lynx
including	987.3	988.2	0.9	112	100	Triple Lynx	Triple Lynx
OSK-W-19-2067-W3	1063.0	1065.0	2.0	5.09		Triple Lynx	Triple Lynx
	1078.0	1080.0	2.0	3.97		Triple Lynx	Triple Lynx
OSK-W-19-2075	146.0	149.1	3.1	3.75		Lynx_344	Lynx
OSK-W-19-2081	198.4	201.4	3.0	16.1		Lynx_344	Lynx
OSK-W-19-2100	945.0	953.0	8.0	9.23		Triple Lynx	Triple Lynx
including	945.0	948.0	3.0	20.7		Triple Lynx	Triple Lynx
OSK-W-19-2100-W2	964.8	967.0	2.2	3.15		Triple Lynx	Triple Lynx
	994.3	997.1	2.8	11.2		Triple Lynx	Triple Lynx
including	995.0	995.7	0.7	29.4		Triple Lynx	Triple Lynx
OSK-W-19-2107-W1	631.0	633.0	2.0	4.13		Lynx 4	Lynx
	639.0	641.0	2.0	5.58		Lynx 4	Lynx
including	639.7	640.5	0.8	13.7		Lynx 4	Lynx
	646.0	648.0	2.0	4.65		Lynx 4	Lynx
	733.0	737.0	4.0	3.72		Triple Lynx	Triple Lynx
	782.0	784.0	2.0	6.28		Triple Lynx	Triple Lynx
	890.5	893.0	2.5	174	56.6	Triple Lynx	Triple Lynx
including	891.2	892.0	0.8	464	100	Triple Lynx	Triple Lynx
OSK-W-19-2107-W2	636.4	639.0	2.6	5.19		Lynx 4	Lynx
	779.0	781.0	2.0	15.5	15.1	Triple Lynx	Triple Lynx
including	779.5	779.8	0.3	103	100	Triple Lynx	Triple Lynx
OSK-W-19-2108-W1	1352.6	1357.8	5.2	18.8		Triple Lynx	Triple Lynx
including	1355.3	1357.8	2.5	34.8		Triple Lynx	Triple Lynx
OSK-W-19-2120-W2	1058.4	1060.4	2.0	28.5		Lynx 4	Lynx
	1128.0	1132.2	4.2	56.6	35.9	Lynx 4	Lynx
including	1131.8	1132.2	0.4	317	100	Lynx 4	Lynx
	1201.4	1203.6	2.2	337	60.0	Lynx 4	Lynx
including	1201.4	1202.7	1.3	569	100	Lynx 4	Lynx
	1209.5	1212.6	3.1	8.82		Lynx 4	Lynx
including	1211.5	1212.0	0.5	23.2		Lynx 4	Lynx
OSK-W-19-2123	1164.4	1167.0	2.6	9.97		Triple Lynx	Triple Lynx
	1197.0	1199.3	2.3	26.7	20.8	Triple Lynx	Triple Lynx
including	1198.9	1199.3	0.4	134	100	Triple Lynx	Triple Lynx
	1203.0	1205.0	2.0	3.26		Triple Lynx	Triple Lynx
OSK-W-19-2123-W1	1048.0	1051.5	3.5	3.84		Triple Lynx	Triple Lynx
	1123.0	1125.0	2.0	8.72		Triple Lynx	Triple Lynx
including	1123.8	1124.4	0.6	27.9		Triple Lynx	Triple Lynx
	1191.0	1194.0	3.0	5.19		Triple Lynx	Triple Lynx
	1217.0	1226.0	9.0	24.9	24.1	Triple Lynx	Triple Lynx
including	1221.0	1222.3	1.3	80.3	74.7
and	1224.0	1225.0	1.0	71.4
OSK-W-19-2133	796.3	798.8	2.5	37.0		Lynx	Lynx
including	797.5	798.4	0.9	79.7		Lynx	Lynx
OSK-W-19-2133-W1	887.0	889.8	2.8	6.06		Lynx 4	Lynx
OSK-W-19-2139	909.7	915.2	5.5	21.2		Triple Lynx	Triple Lynx
	918.2	920.6	2.4	3.06		Triple Lynx	Triple Lynx
	1120.0	1122.1	2.1	27.5	15.4	Triple Lynx	Triple Lynx
including	1121.5	1121.8	0.3	185	100	Triple Lynx	Triple Lynx
OSK-W-19-2139-W1	898.8	902.6	3.8	56.9	37.1	Triple Lynx	Triple Lynx
	910.0	912.2	2.2	8.46		Triple Lynx	Triple Lynx
including	910.0	910.7	0.7	22.5		Triple Lynx	Triple Lynx
OSK-W-19-2151	671.3	674.0	2.7	4.41		Lynx_320	Lynx
including	671.3	671.7	0.4	16.2		Lynx_320	Lynx
	684.9	689.0	4.1	6.48		Lynx_320	Lynx
including	684.9	685.4	0.5	29.4		Lynx_320	Lynx
OSK-W-19-2154	126.4	128.4	2.0	7.18		Lynx_305	Lynx
including	127.4	127.7	0.3	46.8		Lynx_305	Lynx
	174.0	176.0	2.0	34.5		Lynx_310	Lynx
including	174.3	175.1	0.8	86.0		Lynx_310	Lynx
OSK-W-19-2155	522.9	525.0	2.1	11.3		Lynx	Lynx
including	523.4	524.1	0.7	27.1		Lynx	Lynx
	532.6	535.1	2.5	9.00		Lynx	Lynx
OSK-W-19-2160	869.0	871.2	2.2	4.50		Lynx_331	Lynx
OSK-W-19-2161	118.1	120.1	2.0	10.4		Lynx_305	Lynx
	151.7	154.0	2.3	19.1		Lynx_307	Lynx
including	153.6	154.0	0.4	52.8		Lynx_307	Lynx
OSK-W-19-2165	142.2	145.0	2.8	18.4		Lynx_310	Lynx
including	143.2	144.0	0.8	63.0		Lynx_310	Lynx
OSK-W-19-2166	177.1	179.4	2.3	12.0		Lynx_307	Lynx
including	177.1	178.2	1.1	23.9		Lynx_307	Lynx
OSK-W-19-2168	443.7	445.7	2.0	5.92		Lynx	Lynx
including	445.0	445.7	0.7	14.1		Lynx	Lynx
OSK-W-19-2169	596.6	598.7	2.1	4.61		Lynx	Lynx
OSK-W-19-2171	167.0	170.0	3.0	104	39.4	Lynx_307	Lynx
including	168.5	169.0	0.5	488	100	Lynx_307	Lynx
OSK-W-19-2172	157.8	161.5	3.7	7.86		Lynx_307	Lynx
including	160.8	161.5	0.7	23.5		Lynx_307	Lynx
OSK-W-19-2176	149.5	153.7	4.2	4.69		Lynx_307	Lynx
including	151.0	151.6	0.6	14.9		Lynx_307	Lynx
	158.5	160.5	2.0	5.08		Lynx_307	Lynx
OSK-W-19-2179	104.0	106.0	2.0	9.15		Lynx_305	Lynx
including	104.9	105.6	0.7	25.5		Lynx_305	Lynx

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

Underground Drilling

Hole No.	From (m)	To (m)	Interval (m)	Au (g/t) uncut	Au (g/t) cut to 100 g/t	Zone	Corridor
WST-19-0201	67.6	70.0	2.4	15.0		Lynx_307	Lynx
including	67.6	68.5	0.9	36.0		Lynx_307	Lynx
	94.0	96.0	2.0	10.2		Lynx	Lynx
including	94.8	95.1	0.3	66.7		Lynx	Lynx
WST-19-0210	91.2	95.7	4.5	10.3		Lynx_307	Lynx
including	91.2	92.2	1.0	24.7		Lynx_307	Lynx
WST-19-0230	50.0	52.0	2.0	8.98		Lynx	Lynx
including	50.0	51.0	1.0	17.8		Lynx	Lynx
	70.0	72.0	2.0	13.7		Lynx_308	Lynx
including	70.0	70.3	0.3	80.4		Lynx_308	Lynx
WST-19-0231	69.0	71.6	2.6	5.17		Lynx_308	Lynx
including	71.0	71.6	0.6	16.6		Lynx_308	Lynx
WST-19-0232	66.0	68.0	2.0	10.5		Lynx_311	Lynx
WST-19-0233	88.0	90.0	2.0	4.16		Lynx	Lynx
WST-19-0236	119.6	121.9	2.3	8.63		Lynx_304	Lynx
WST-19-0237	72.0	74.9	2.9	4.88		Lynx_308	Lynx
including	74.6	74.9	0.3	26.5		Lynx_308	Lynx
WST-19-0242	4.0	6.0	2.0	5.15		Lynx_310	Lynx
including	4.0	5.0	1.0	10.1		Lynx_310	Lynx
	10.0	12.0	2.0	8.15		Lynx	Lynx
including	10.0	11.0	1.0	16.1		Lynx	Lynx
	16.0	18.8	2.8	20.2	14.7	Lynx_305	Lynx
including	17.4	17.8	0.4	139	100	Lynx_305	Lynx
WST-19-0243	15.0	17.3	2.3	5.08		Lynx	Lynx
including	16.5	16.8	0.3	33.9		Lynx	Lynx
	46.2	48.2	2.0	10.1		Lynx_304	Lynx
including	46.6	46.9	0.3	65.1		Lynx_304	Lynx
WST-19-0246	7.0	9.0	2.0	5.02		Lynx_310	Lynx
	12.5	15.0	2.5	5.05		Lynx	Lynx
including	14.7	15.0	0.3	33.9		Lynx	Lynx
	33.0	35.0	2.0	3.47		Lynx_305	Lynx
including	34.7	35.0	0.3	21.8		Lynx_305	Lynx
WST-19-0247	5.0	9.8	4.8	3.65		Lynx_310	Lynx
including	9.5	9.8	0.3	22.2		Lynx_310	Lynx
WST-19-0249	83.0	85.0	2.0	17.3		Lynx_308	Lynx
including	83.8	84.2	0.4	80.8		Lynx_308	Lynx
	88.0	90.5	2.5	3.73		Lynx_310	Lynx
including	88.6	88.9	0.3	30.2		Lynx_310	Lynx
	110.0	112.0	2.0	54.4	32.8	Lynx_305	Lynx
including	110.4	111.0	0.6	172	100	Lynx_305	Lynx
WST-19-0251	75.6	78.0	2.4	6.11		Lynx_308	Lynx
including	76.3	76.8	0.5	25.2		Lynx_308	Lynx

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-17-886	130	-56	1191	453466	5435585	410	3900
OSK-W-17-921	331	-57	834	453428	5434865	396	3525
OSK-W-18-1104-W1	142	-50	600	453383	5435455	402	3775
OSK-W-19-1104-W2	142	-50	927	453383	5435455	402	3775
OSK-W-19-1104-W3	142	-50	834	453383	5435455	402	3775
OSK-W-19-1166-W5	132	-59	1155	453621	5435638	405	4050
OSK-W-19-1169-W3	129	-55	1266	453332	5435467	406	3725
OSK-W-19-1181-W11	133	-58	1025	453789	5435790	401	4275
OSK-W-19-1193-W4	141	-59	1067	453807	5435721	400	4275
OSK-W-19-1272-W2	127	-60	1064	453246	5435535	412	3675
OSK-W-19-1272-W3	127	-60	1164	453246	5435535	412	3675
OSK-W-19-1414-W8	133	-57	1092	453656	5435645	403	4100
OSK-W-19-1731-W2	139	-51	996	453383	5435518	409	3800
OSK-W-19-1949-W3	105	-57	1326	453440	5435479	401	3825
OSK-W-19-1969	164	-51	336	452832	5434947	405	3025
OSK-W-19-1995	336	-59	564	452818	5434775	397	2950
OSK-W-19-2026-W1	123	-56	1152	453214	5435642	414	3700
OSK-W-19-2067	123	-53	1212	453241	5435696	415	3750
OSK-W-19-2067-W2	123	-53	1159	453241	5435696	415	3750
OSK-W-19-2067-W3	123	-53	1227	453241	5435696	415	3750
OSK-W-19-2075	177	-50	288	452940	5435029	411	3175
OSK-W-19-2081	152	-47	291	452838	5435047	407	3100
OSK-W-19-2100	122	-47	1110	453093	5435726	419	3650
OSK-W-19-2100-W2	122	-47	1134	453093	5435726	419	3650
OSK-W-19-2107-W1	23	-70	1059	453426	5434778	396	3475
OSK-W-19-2107-W2	23	-70	932	453426	5434778	396	3475
OSK-W-19-2108-W1	117	-53	1506	453215	5435858	414	3825
OSK-W-19-2120-W2	114	-60	1317	453800	5435747	401	4275
OSK-W-19-2123	126	-57	1293	453231	5435774	400	3775
OSK-W-19-2123-W1	126	-57	1308	453231	5435774	400	3775
OSK-W-19-2133	118	-49	1055	453080	5435531	417	3525
OSK-W-19-2133-W1	118	-49	987	453080	5435531	417	3525
OSK-W-19-2139	115	-52	1149	452980	5435549	420	3450
OSK-W-19-2139-W1	115	-52	1152	452980	5435549	420	3450
OSK-W-19-2151	125	-56	834	453420	5435559	410	3850
OSK-W-19-2154	338	-52	225	453178	5434912	397	3325
OSK-W-19-2155	138	-51	909	453215	5435512	410	3650
OSK-W-19-2160	124	-50	1032	453087	5435527	404	3550
OSK-W-19-2161	323	-45	183	453177	5434912	397	3325
OSK-W-19-2165	335	-48	162	453177	5434897	397	3300
OSK-W-19-2166	326	-48	228	453177	5434897	397	3300
OSK-W-19-2168	149	-56	537	453457	5435342	399	3775
OSK-W-19-2169	130	-50	1268	453215	5435512	410	3650
OSK-W-19-2171	329	-45	201	453177	5434898	397	3300
OSK-W-19-2172	329	-53	207	453148	5434907	398	3300
OSK-W-19-2176	328	-48	195	453148	5434907	398	3300
OSK-W-19-2179	335	-45	213	453149	5434907	398	3300
WST-19-0201	162	-8	130	453177	5435125	174	3425
WST-19-0210	187	22	157	453176	5435125	175	3425
WST-19-0230	161	20	151	453215	5435114	224	3450
WST-19-0231	161	10	154	453215	5435114	224	3450
WST-19-0232	161	-1	148	453215	5435114	223	3450
WST-19-0233	183	12	94	453215	5435114	224	3450
WST-19-0236	150	0	169	453216	5435114	223	3450
WST-19-0237	173	22	97	453216	5435114	224	3450
WST-19-0242	119	31	72	453307	5435063	206	3500
WST-19-0243	124	42	67	453306	5435063	206	3500
WST-19-0246	143	40	73	453306	5435063	206	3500
WST-19-0247	155	33	73	453306	5435063	205	3500
WST-19-0249	134	20	115	453217	5435115	224	3450
WST-19-0251	143	17	155	453217	5435115	224	3450

Lynx Zone

Mineralization in the Lynx zone is typically characterized by trace to 15% disseminated, clustered or stringer pyrite (locally up to 70%), local visible gold, trace to 3% sphalerite, chalcopyrite, and galena, local ptygmatic pyrite-tourmaline or tourmaline veinlets, quartz-carbonate veins (locally crustiform), smoky quartz veins and veinlets, and local chlorite-calcite or quartz-carbonate chlorite fracture filling. Alteration consists of weak to strong sericite, weak to strong silica with areas of local pervasive silica flooding, weak to moderate chlorite and carbonate, and locally weak to strong fuchsite. Mineralization is hosted in or at the contacts of felsic porphyritic or fragmental intrusions with rhyolites, andesites (locally bleached), or gabbros.

Triple Lynx Zone

Mineralization in the Triple Lynx zone is typically characterized by trace to 30% disseminated, clustered or stringer pyrite, local visible gold, trace sphalerite, chalcopyrite, and galena, local quartz-tourmaline veins (up to 20%), local ptygmatic tourmaline veins, and local smoky quartz and quartz-carbonate veins. Alteration consists of weak to strong sericite, weak to strong silica with areas of local pervasive silica flooding, weak to moderate chlorite and carbonate, and locally weak to strong fuchsite. Mineralization is hosted in or at the contacts of felsic porphyritic dikes with rhyolites (locally bleached) or gabbros.

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, Quality Assurance/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 Lake Gold Deposit

The Windfall Lake gold deposit is located between Val-d’Or and Chibougamau in the Abitibi region of Québec, Canada. The mineral resource defined by Osisko, as disclosed in the Windfall Lake Technical Report (as defined below) and November 27, 2018 Lynx resource update, comprises 2,874,000 tonnes at 8.17 g/t Au (754,000 ounces) in the indicated mineral resource category and 10,352,000 tonnes at 7.11 g/t Au (2,366,000 ounces) in the inferred mineral resource category. For details regarding the key assumptions, parameters and methods used to estimate the mineral resources presented in respect of the Windfall Lake gold project, please see the technical report entitled “Technical Report and Mineral Resource Estimate for the Windfall Lake Project, Windfall Lake and Urban-Barry Properties” and dated June 12, 2018 (effective date of May 14, 2018), which has been prepared by InnovExplo Inc. from Val-d’Or, Québec (the “Windfall Lake Technical Report”) and the press release “Osisko Releases Mineral Resource Update for Lynx” dated November 27, 2018, which has been prepared by Osisko and reviewed and approved by Micon International, Ltd. from Toronto, Ontario. The Windfall Lake Technical Report and press release are available on Osisko’s website at www.osiskomining.com and on SEDAR under Osisko’s issuer profile at www.sedar.com. The Windfall Lake gold deposit is currently one of the highest-grade resource-stage gold projects in Canada. Mineralization occurs in four principal zones: Lynx, Zone 27, Caribou and Underdog. All zones comprise sub-vertical lenses following intrusive porphyry contacts plunging to the northeast. The deposit is well defined from surface to a depth of 900 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 Lake 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 the 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. The information in this news release about the Windfall Lake gold deposit being one of the highest grade resource-stage gold projects in Canada; the significance of results from the new infill drilling and ongoing drill definition and expansion program at the Windfall Lake gold project; the significance of assay results presented in this news release; the deposit remaining open along strike and at depth; potential depth extensions of the mineralized zones down-plunge and at depth; the actual mineralization of local visible gold; the current drill program; the type of drilling included in the drill program; potential mineralization; the potential to extend mineralization up and down-plunge and at depth at the Windfall Lake gold deposit; the ability to realize upon any mineralization in a manner that is economic; the ability to complete any proposed exploration activities and the results of such activities, including the continuity or extension of any mineralization; and any other information herein that is not a historical fact may be “forward-looking information”. Any statement that involves discussions with respect to 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”, “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 forward-looking information is based on reasonable assumptions and estimates of management of the Corporation at the time such assumptions and estimates were made, and involves known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements of Osisko to be materially different from any future results, performance or achievements expressed or implied by such forward-looking information. 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 interests in the Windfall Lake gold project; the ability of the Corporation to obtain required approvals and complete transactions on terms announced; 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.

For further information please contact:

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

OSISKO INTERSECTS 1475 g/t Au OVER 4.6 METRES IN LYNX

Posted on December 16, 2019November 8, 2023 by Yannick Fradette

(Toronto, December 16, 2019) Osisko Mining Inc. (OSK:TSX. “Osisko” or the “Corporation”) is pleased to provide new drilling 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.

The program is currently focused on infill and expansion drilling at the Lynx deposit, exploration on the main mineralized zones, and deep exploration in the central areas of the mineralized intrusive system. Twenty-one drills are active at Lynx and Triple Lynx, with another three drills conducting infill and exploration drilling on other areas of the deposit.

Infill drilling at Lynx has returned the highest-grade metal factor (grade x length) result intersected at Windfall to date of 1475 g/t Au over 4.6 metres in hole OSK-W-19-1731-W2. This infill hole from the definition program is 50 metres up plunge of OSK-19-2068-W2 (161 g/t Au over 8.0 meters, see Osisko news release dated November 25, 2019) and confirms the high-grade continuity in the Lynx 313 wireframe. The zone remains open down plunge and definition drilling will continue to pursue the open areas.

Osisko President and Chief Executive Officer John Burzynski commented: “Today’s very impressive results again underscore that Lynx is a well mineralized part of the Windfall system. Lynx, discovered by Osisko in late 2016, is shaping up to be one of the best new gold discoveries in a long time in Eastern Canada. The recently announced Lynx bulk sample results (see Osisko news release dated December 12, 2019) and our infill drill program are demonstrating the strong continuity of grade inside the known mineralized zones, which remain open down plunge. Our exploration team is excited by the continuing potential of what we feel is an emerging world-class high-grade gold deposit.”

Significant new analytical results in thirteen intercepts from one surface drill hole and six wedges focused on Lynx infill and expansion drilling are presented below.

Maps showing hole locations and full analytical results are available at www.osiskomining.com.

Surface Drilling

Hole No.	From (m)	To (m)	Interval (m)	Au (g/t) uncut	Au (g/t) cut to 100 g/t	Zone	Corridor
OSK-W-19-1104-W2	834.6	836.7	2.1	50.4		Lynx_313	Lynx
OSK-W-19-1181-W9	907.9	910.1	2.2	25.4		Lynx_324	Lynx
including	907.9	908.7	0.8	68.8		Lynx_324	Lynx
OSK-W-19-1181-W12	1149.0	1151.0	2.0	12.2		Lynx 4	Lynx
including	1150.0	1150.7	0.7	32.0		Lynx 4	Lynx
	1158.4	1166.0	7.6	16.5		Lynx_317	Lynx
including	1159.4	1161.9	2.5	37.5		Lynx_317	Lynx
	1171.0	1174.0	3.0	94.6	48.9	Lynx_317	Lynx
including	1171.0	1172.0	1.0	237	100	Lynx_317	Lynx
	1185.0	1187.3	2.3	4.27		Lynx_317	Lynx
	1189.2	1192.0	2.8	179	100	Lynx_317	Lynx
OSK-W-18-1673	925.5	941.6	16.1	23.4	21.8	Lynx_313	Lynx
including	937.8	938.6	0.8	132	100	Lynx_313	Lynx
OSK-W-19-1731-W2	882.7	887.3	4.6	1475	64.3	Lynx_313	Lynx
including	886.3	887.0	0.7	8030	100	Lynx_313	Lynx
	891.0	893.2	2.2	33.6		Lynx_313	Lynx
OSK-W-19-1949-W2	1080.6	1085.4	4.8	25.4	18.1	Lynx_313	Lynx
including	1082.4	1083.1	0.7	150	100	Lynx_313	Lynx
	1097.8	1100.5	2.7	3.92		Lynx_313	Lynx
OSK-W-19-2068-W3	893.5	896.0	2.5	22.3		Lynx_313	Lynx

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

Drill hole location

Hole Number	Azimuth (°)	Dip (°)	Length (m)	UTM E	UTM N	Elevation	Section
OSK-W-19-1104-W2	142	-50	927	453383	5435455	402	3775
OSK-W-19-1181-W9	133	-58	1058	453789	5435790	401	4275
OSK-W-19-1181-W12	133	-58	1371	453789	5435790	401	4275
OSK-W-18-1673	135	-46	984	453260	5435472	407	3675
OSK-W-19-1731-W2	154	-44	996	453383	5435518	409	3800
OSK-W-19-1949-W2	105	-57	1127	453440	5435479	401	3825
OSK-W-19-2068-W3	116	-53	1458	453316	5435389	403	3675

OSK-W-19-1104-W2 intersected 50.4 g/t Au over 2.1 metres. Mineralization consists of local visible gold, 8% disseminated, clustered and stringer pyrite, trace sphalerite clusters with pervasive silica flooding, and 2% ptygmatic tourmaline veinlets hosted in a weakly sericitized rhyolite and moderately beached andesite.

OSK-W-19-1181-W9 intersected 25.4 g/t Au over 2.2 metres. Mineralization consists of 3% finely disseminated pyrite and ptygmatic quartz-tourmaline veins hosted in a moderate chlorite and fuchsite altered gabbro.

OSK-W-19-1181-W12 intersected five intervals: 12.2 g/t Au over 2.0 metres, 16.5 g/t Au over 7.6 metres, 94.6 g/t Au over 3.0 metres, 4.27 g/t Au over 2.3 metres and 179 g/t Au over 2.8 metres. The first interval consists of trace stringer and clustered pyrite associated with strong pervasive silica flooding hosted in a felsic porphyritic dike. The second interval consists of 5% pyrite stringers, 1% disseminated sphalerite and chalcopyrite and local visible native silver at the contact between a moderate chlorite altered gabbro and a moderate sericite altered rhyolite. The third and fourth intervals consist of 1% pyrite stringers hosted in a moderate sericite altered rhyolite. The last interval consists of local visible gold, up to 8% pyrite stringers, and trace sphalerite and chalcopyrite in clusters with a strong silica, fuchsite and sericite altered gabbro.

OSK-W-18-1673 intersected 23.4 g/t Au over 16.1 metres. Mineralization consists of local visible gold, up to 5% pyrite stringers, up to 5% disseminated sphalerite, 2% chalcopyrite and trace of galena within a strong sericite and silica altered rhyolite.

OSK-W-19-1731-W2 intersected 1475 g/t Au over 4.6 metres and 33.6 g/t Au over 2.2 metres. The first interval contains up to 5% local visible gold, up to 8% disseminated and stringer pyrite hosted in an intensely pervasive silica flooded, moderately sericitized, and strong fuchsite altered rhyolite. The second interval contains local visible gold, 3% disseminated and stringer pyrite hosted in a moderate silica, sericite and fuchsite altered rhyolite.

OSK-W-19-1949-W2 intersected 25.4 g/t Au over 4.8 metres and 3.92 g/t Au over 2.7 metres. The first interval contains local visible gold, up to 15% semi-massive and stringer pyrite and ptygmatic tourmaline veins hosted in a strong silica altered rhyolite. The second interval contains semi-massive and stringer pyrite hosted in a strong silica and moderate sericite altered rhyolite.

OSK-W-19-2068-W3 intersected 22.3 g/t Au over 2.5 metres. Mineralization consists of 2% pyrite clusters and 1% pyrite-tourmaline stringers in a moderate silica, sericite and weak fuchsite altered rhyolite.

Qualified Person

Quality Control and Reporting Protocols

About the Windfall Lake Gold Deposit

About Osisko Mining Inc.

Cautionary Note Regarding Forward-Looking Information

For further information please contact:

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

OSISKO LYNX BULK SAMPLE RETURNS 17.8 g/t Au RECONCILED HEAD GRADE

Posted on December 11, 2019November 8, 2023 by Yannick Fradette

89% Higher Grade than Predicted in Resource Block Model

(Toronto, Dec 11, 2019) Osisko Mining Inc. (OSK:TSX “Osisko” or the “Corporation”) is pleased to provide new results from the ongoing exploration program at its 100% owned Windfall Lake gold project located in the Abitibi greenstone belt, Urban Township, Eeyou Istchee James Bay, Québec. Results from processing 5,716 tonnes mined from Lynx (the “bulk sample”) have exceeded expectations, returning an average grade of 17.8 g/t Au. The bulk sample average grade is 89% higher than the 9.40 g/t Au predicted by infill drilling on the Lynx zone 311 resource block model wireframe. Mining of the bulk sample successfully confirmed the presence of mineralization predicted in the resource model, and the analytical results have confirmed the visual mineralization encountered along the stope. Highlights and full results are presented below.

Highlights

Average grade of 17.8 g/t Au for the bulk sample is 89% higher than predicted in the 12.5 metre infill drilling block model
Higher than anticipated average Au recovery of 97.2% achieved
66.7% of the gold was recovered in the gravity concentrate
The sample contained 3,271 ounces Au and 2,176 ounces of Ag

President and Chief Executive Officer John Burzynski commented: “We are highly encouraged with the excellent results from this second bulk sample completed from the Windfall deposit. The average grade greatly exceeded our expectations based on the infill drilling, returning 89% higher grade than anticipated. The significant grade increase from the block model appears to correspond well with the very regular visible gold observed in Lynx drilling. The bulk sampling work is greatly helping to build our confidence in the continuity, grade, recoveries and the predictability of the mineralized zones at Windfall.”

Geology

The Lynx zone 311 bulk sample is characterized by an East-North-East sub vertical silica altered corridor with an average width of approximately 2.5 meters. Banded grey quartz veins contain 3 to 15% disseminated pyrite and local visible gold, cross-cutting foliated rhyolite and granodiorite with strong sericite and local fuchsite alteration. The continuous vein system was mapped along sills over three levels.

Processing

A total of 5,716 tonnes were processed in November 2019. The bulk sample test was performed at the Northern Sun Redstone concentrator. Processing produced gravity and flotation concentrates. Ore transportation trucks were sampled for moisture and weighed on a calibrated weight scale. The sample material was crushed and milled to a particle size favorable to the flotation recovery process. Gravity and flotation concentrates produced will be sent to a local smelter for sale. Day and night shift daily composite samples of streams for the reconciliation process were prepared and analyzed by an external independent lab. Concentrate production tonnage and assays were used to reconcile the bulk sample mass balance process in the concentrator. The reconciliation was performed by an external independent consultant using Bilmat (a reconciliation software) on a dry tonnes basis.

The reconciled head grade obtained from the processed sample is 17.8 g/t Au and 11.8 g/t Ag. The sample contained 3,271 oz Au and 2,176 oz Ag, with a total of 3,181 oz Au and 2,052 oz Ag recovered. Reconciled recoveries are 97.2% for gold and 94.3% for silver. The Preliminary Economic Assessment (or “PEA”, see Osisko news release dated July 17^th, 2018) metallurgical test work considered a communition, gravity and carbon in leach process flowsheet, giving an average recovery of 93.8% for Lynx zone. Test mill availability dictated the use of a mill with a communition, gravity and flotation flowsheet. The reconciled results from the processing of the bulk sample material are presented in Table 1 below:

Table 1: Lynx Bulk Sample Reconciled Results

tonnes (dry)

Head

Grade

Contained

Ounces

Gravity Concentrate

Flotation Concentrate

Overall

Recovery

Recovered

Ounces

Au (g/t)

Ag (g/t)

tonnes (dry)

Au Rec (%)

tonnes (dry)

Au Rec (%)

Au Recovery (%)

Ag Recovery (%)

5,716

17.8

11.8

3,271

2,176

9.7

66.7

284.4

91.7

97.2

94.3

3,181

2,052

Mill feed tonnages used in the sample processing reconciliation were provided by Northern Sun. Day and night shift daily composite samples collected during the processing of the bulk sample were assayed by external independent laboratories. Bulk sample results were reconciled by Soutex Inc., an external independent consultant using Bilmat.

Block Model

The area mined was located in mineralization wireframe 311 from the Windfall Lynx updated resources block model. The area was prepared for mining with infill drilling at 12.5 metre spacing. The same parameters used in the November 2018 Mineral Resource Estimation (see Osisko news release dated November 28, 2018) were used for an internal update of the resource block model in the bulk sample area. The infill drilling block model predicted 5,717 tonnes at 9.40 g/t Au containing 1,736 ounces of gold inside the excavated area (see Table 2 below).

Table 2: Infill Resource Block Model Predictions vs. Actual Processed

Predicted from Block Model

(12.5m Infill Spacing)

Actual Processed Material

Tonnes

Au g/t

Au Ounces

Tonnes

Au g/t

Au Ounces

5,717

9.40

1,736

5,716

17.8

3,271

Concentrates

Both the gravity concentrate and flotation concentrate produced from the sample are considered high-grade. The gravity concentrate averaged 7,020 g/t Au (225.7 oz/T Au), while the flotation concentrate averaged 110.6 g/t Au (3.6 oz/T Au), or respectively CDN$381,464/t and CDN$6,010/t (using US$1300/oz and 1.3 US/CDN exchange rate). Further work will be conducted on the process flowsheet prior to feasibility in light of these high-value numbers.

Mining and Grade Control

The Lynx bulk sample was mined in wireframe 311 with the long hole mining method proposed in the PEA. Two development drifts were mined conventionally at 20 metre vertical intervals between 210 and 230 meters below surface. A third development drift was mined 20 metres above the stope at 190 meters below surface to confirm grade and continuity of the Lynx 311 wireframe. While mining the development drifts, split blasts of the face were completed to test the width and grade of the mineralization. A V30 borehole was used in the slot raise and two and one-half inch production holes were drilled down and blasted. The blasted ore was retrieved with remote scoop tram equipment and trucked to the mill with muck samples taken.

Qualified Person

The scientific and technical content of this news release has been reviewed, prepared and approved by Miss. Kim-Quyên Nguyên, MBA., P.Eng. (OIQ 146014), Project Manager of Windfall gold project Technical Studies, who is a “qualified person” as defined by National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“NI 43-101”). The infill block model in the bulk sample area from the Lynx 311 zone of the Windfall Lake Deposit, with an effective date of June 10^th, 2019, was prepared by Judith St-Laurent, P.Geo (OGQ #1023)., B.Sc., of Osisko Mining, who is a “qualified person” within the meaning of NI 43-101. The scientific and technical content in this press release has been reviewed and approved by Mr. Mathieu Savard, P.Geo (OGQ #510), Senior Vice President Exploration of Osisko Mining, who is a “qualified person” within the meaning of NI 43-101.

Technical Info, Quality Control and Reporting Protocols

Process reconciliation was performed using Bilmat software and validated by Soutex Inc., an external consultant. Day and night shift daily and global reconciliations were performed. Day and night shift daily mill throughput was estimated using the load cell on the Redstone primary ball mill feed conveyor. Day and night shift daily composite samples were taken on streams required for reconciliation. Global Mill throughput was estimated based on the Redstone Mill truck scale which is calibrated once per year. Global flotation concentrate was weighed on the same truck scale and samples were taken from each bucket used to load the concentrate trucks. Global gravity concentrate was weighed on a scale and each bag was drill sampled. All samples were sent out to an external independant lab for preparation and assaying. They were all assayed for gold, silver, iron, sulfur and moisture. Gold assay from all streams was obtained by screened metallics fire assay.

About the Windfall Lake Gold Deposit

The Windfall gold deposit is located between Val-d’Or and Chibougamau in the Abitibi region of Québec, Canada. The mineral resource defined by Osisko, as disclosed in the Windfall Lake Technical Report (as defined below) and November 27, 2018 Lynx resource update, comprises 2,874,000 tonnes at 8.17 g/t Au (754,000 ounces) in the indicated mineral resource category and 10,352,000 tonnes at 7.11 g/t Au (2,366,000 ounces) in the inferred mineral resource category. For details regarding the key assumptions, parameters and methods used to estimate the mineral resources presented in respect of the Windfall Lake gold project, please see the technical report entitled “Technical Report and Mineral Resource Estimate for the Windfall Lake Project, Windfall Lake and Urban-Barry Properties” and dated June 12, 2018 (effective date of May 14, 2018), which has been prepared by InnovExplo Inc. from Val-d’Or, Québec (the “Windfall Lake Technical Report”) and the press release “Osisko Releases Mineral Resource Update for Lynx” dated November 27, 2018, which has been prepared by Osisko and reviewed and approved by Micon International, Ltd. from Toronto, Ontario. The Windfall Lake Technical Report and press release are available on Osisko’s website at www.osiskomining.com and on SEDAR under Osisko’s issuer profile at www.sedar.com. The Windfall Lake gold deposit is currently one of the highest-grade resource-stage gold projects in Canada. Mineralization occurs in four principal zones: Lynx, Zone 27, Caribou and Underdog. All zones comprise sub-vertical lenses following intrusive porphyry contacts plunging to the northeast. The deposit is well defined from surface to a depth of 900 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 a 100% undivided interest in a large area of claims in the surrounding the 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. The information in this news release about the Windfall gold deposit being one of the highest grade resource-stage gold projects in Canada; the significance of results from the new infill drilling and ongoing drill definition and expansion program at the Windfall gold project; the results from the bulk sample; the bulk sample having a higher grade than predicted; any prediction arising from the bulk sample; the average grade of the bulk sample having any predictive value; the results of the bulk sample being better than expected; the results of the bulk sample being within management’s expectations for the overall grade of the deposit; the timing and ability to complete the second bulk test in the Lynx Zone; the geology of the bulk sample; any results from the infill drilling block model; the deposit remaining open along strike and at depth; potential depth extensions of the mineralized zones down-plunge and at depth; the type of drilling included in the drill program; potential mineralization; the potential to extend mineralization up and down-plunge and at depth at the Windfall Lake gold deposit; the ability to realize upon any mineralization in a manner that is economic; the ability to complete any proposed exploration activities and the results of such activities, including the continuity or extension of any mineralization; and any other information herein that is not a historical fact may be “forward-looking information”. Any statement that involves discussions with respect to 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”, “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 forward-looking information is based on reasonable assumptions and estimates of management of the Corporation at the time such assumptions and estimates were made, and involves known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements of Osisko to be materially different from any future results, performance or achievements expressed or implied by such forward-looking information. 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 interests in the Windfall Lake gold project; the ability of the Corporation to obtain required approvals and complete transactions on terms announced; 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.

For further information please contact:

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

OSISKO WINDFALL UPDATE ON DISCOVERY 1 DEEP DRILL HOLE

Posted on December 10, 2019November 8, 2023 by Yannick Fradette

Wide Zones of Anomalous Gold Intercepted As Hole Nears Interpreted Source Area

(Toronto, December 10, 2019) Osisko Mining Inc. (OSK:TSX. “Osisko” or the “Corporation”) is pleased to provide an update on the Discovery 1 (OSK-W-19-1970) drill hole. Discovery 1 is a planned 3000 metre to 3500 metre deep drill hole, designed to target two down plunge extensions of known gold zones and investigate the projected source area of the Windfall deposit at depth. The working model for the Windfall deposit interprets an outer shell and centre of a possible porphyry intrusion feeding the Windfall-Lynx gold system.

Prior results from Discovery 1 included successful intersections in the targeted Underdog Zone (500 metre extension: 14.1 g/t Au over 2.1 metres), and the Triple 8 Zone (100 metre extension: 9.58 g/t Au over 7.6 metres) (see Osisko news release dated September 11, 2019).

Discovery 1 completed approximately 2275 metres before requiring a wedge at 2170 metres to drill past blocked rods. To date, the hole has progressed to 3225 metres of the planned 3500 metres.

The drill hole has intersected several wide zones of anomalous gold mineralization between 2300 metres – 2900 metres down-hole. Analytical results below 2900 metres are pending. The newly detected anomalous gold zones range up to 116 metres in length, and occur in chlorite, sericite, and biotite altered andesites. Wide zones of anomalous gold have similarly been observed in the proximity of Triple 8, Triple Lynx, and Lynx zones.

Osisko President and Chief Executive Officer John Burzynski commented: “Discovery 1 gave early dividends with the discovery of the Underdog and Triple 8 extensions. As we approach the main target depth, these wide intercepts of anomalous gold values are a positive indication that we may be approaching another mineralized zone. We are at the really interesting part of this hole as Discovery 1 continues its voyage to the hypothetical roots and feeder system of the Windfall deposit.”

Maps showing hole locations and full analytical results are available at www.osiskomining.com.

Hole No.	From (m)	To (m)	Interval (m)	Au (ppb)	Host
OSK-W-19-1970-W1	2290.0	2305.0	15.0	790	Andesite
	2358.2	2360.7	2.5	4010	Felsic intrusive
	2377.0	2392.0	15.0	1340	Andesite
	2437.4	2520.6	83.2	320	Andesite
	2650.2	2670.0	19.8	750	Andesite
	2681.0	2738.0	57.0	460	Andesite
	2738.0	2740.0	2.0	7410	Felsic intrusive
	2760.0	2856.0	116.0	420	Andesite
	2879.3	2900.0	20.7	540	Andesite

Hole Number	Azimuth (°)	Dip (°)	Length (m)	UTM E	UTM N	Elevation	Section
OSK-W-19-1970	090	-51	In Progress	451913	5435346	401	2425

Qualified Person

Quality Control and Reporting Protocols

About the Windfall Lake Gold Deposit

About Osisko Mining Inc.

Cautionary Note Regarding Forward-Looking Information

For further information please contact:
John Burzynski
President and Chief Executive Officer
Telephone: (416) 363-8653

OSISKO MINING RECAPS WINDFALL DRILL PROGRAM AND  50 TOP INTERCEPTS

Posted on December 9, 2019November 8, 2023 by Yannick Fradette

(Toronto, December 9, 2019) Osisko Mining Inc. (OSK:TSX. “Osisko” or the “Corporation”) is pleased to provide a recap of the drill program and 50 top intercepts to date at its 100{4a519b2e1b7ee41c07b52bf609655ec62dee46aaa3d3e6dbc7220444390e11ca} owned Windfall gold project located in the Abitibi greenstone belt, Urban Township, Eeyou Istchee James Bay, Québec.

The ongoing drill program at Windfall started in October 2015 and has included over 900,000 metres of reported drilling to date from approximately 3000 holes. An additional approximately 180,000 metres were drilled at Windfall and reported by previous operators, and are included in the database. Previously released intercepts described in this news release reflect management’s interpretation of the drill results reported to date in news releases of the Corporation, and should be read with reference to the full drill results described in such news releases issued by the Corporation from time to time since October 2015, which are available on SEDAR under Osisko’s issuer profile and on Osisko’s website (https://www.osiskomining.com/news/).

The drill program is focused on infill and expansion drilling of the known mineralized zones, deep exploration in the central areas of the mineralized intrusive system, and general exploration. Currently, there are 21 drills active at Lynx and Triple Lynx, with another three drills conducting infill and exploration drilling on other areas of the deposit.

Presented below are three tables describing the “50 Top Intercepts” from the Windfall drill program, based on: (I) Metal Factor (Grade*Length); (II) Grade; and (III) Length, with a corresponding grade greater than one ounce.

Osisko President and Chief Executive Officer John Burzynski commented: “As we approach the completion of drilling that will be included in the February 2020 resource update, we are pleased to review some of the top intercepts returned from Windfall to date. In the past four years, we have seen high-grade intercepts in all the main mineralized zones and across varying depths in the deposit. And even after four years and 900,000 metres of drilling, we are still finding new extensions of the mineralized zones, and infill holes continue to return exceptional results. An example is last Monday’s news release headline intercept (OSK-W-19-991-W8), which is our third longest interval with an average grade over an ounce, and is also in the top 20 by metal factor. Windfall continues to be an exciting deposit to drill.”

WINDFALL: 50 TOP INTERCEPTS – METAL FACTOR (GRADE*LENGTH)

Hole No.	From (m)	To (m)	Interval (m)	Au (g/t) uncut	Interval (feet)	Au (oz/T) uncut	Zone
WST-18-0025	65.0	67.0	2.0	2223	6.6	64.8	Zone 27
EAG-13-466	490.8	497.2	6.4	558	21.0	16.3	Zone 27
EAG-13-527	226.2	234.0	7.8	416	25.6	12.1	Zone 27
OSK-W-18-1725	283.3	286.0	2.7	1026	8.9	29.9	Lynx
OSK-W-18-1639	475.8	481.0	5.2	510	17.1	14.9	Lynx
OSK-W-17-1166-W1	1027.0	1032.9	5.9	415	19.4	12.1	Lynx
OSK-W-17-820	616.5	619.0	2.5	936	8.2	27.3	Caribou
OSK-W-17-909	912.0	918.2	6.2	301	20.3	8.8	Lynx 4
OSK-W-19-934-W1	918.0	921.7	3.7	489	12.1	14.3	Lynx 4
OSK-W-17-743-W4	796.2	799.0	2.8	585	9.2	17.1	Caribou
OSK-W-18-1589	101.6	103.8	2.2	742	7.2	21.6	Zone 27
OSK-W-19-1193-W2	996.5	999.8	3.3	491	10.8	14.3	Lynx 4
OSK-W-17-834	292.0	295.7	3.7	421	12.1	12.3	Lynx
OSK-W-19-1857	1278.3	1282.6	4.3	322	14.1	9.4	Lynx Extension
OSK-W-18-1593	228.1	230.9	2.8	494	9.2	14.4	Lynx
OSK-W-19-991-W8	1449.0	1462.0	13.0	106	42.7	3.1	Lynx Extension
OSK-W-19-2068-W2	853.8	861.8	8.0	161	26.2	4.7	Lynx 4
OSK-W-17-913	719.0	721.0	2.0	611	6.6	17.8	Caribou
OSK-W-16-728	478.1	481.2	3.1	391	10.2	11.4	Caribou
EAG-12-318	69.0	94.0	25.0	44.0	82.0	1.3	Zone 27
OSK-W-18-1412-W1	720.0	722.7	2.7	403	8.9	11.7	Lynx
OSK-W-19-909-W11	912.2	924.0	11.8	84.6	38.7	2.5	Lynx 4
OSK-W-17-1363	373.6	382.0	8.4	115	27.6	3.3	Lynx
OSK-W-17-1169	761.0	763.0	2.0	479	6.6	14.0	Lynx
OSK-W-19-934-W2	901.8	904.0	2.2	429	7.2	12.5	Lynx 4
OSK-W-19-1272-W1	762.2	774.9	12.7	72.3	41.7	2.1	Triple Lynx
OSK-W-18-1550	886.3	889.5	3.2	284	10.5	8.3	Lynx 4
WST-19-0202	81.0	83.0	2.0	453	6.6	13.2	Lynx
OSK-W-19-1883	100.2	102.4	2.2	393	7.2	11.5	Windfall North
OSK-W-16-760	223.0	232.0	9.0	95.3	29.5	2.8	Lynx
OSK-W-17-837	320.0	328.4	8.4	97.4	27.6	2.8	Lynx
OSK-W-16-743	1233.7	1236.3	2.6	303	8.5	8.8	Underdog
OBM-15-557	894.5	901.3	6.8	115	22.3	3.4	Underdog
OSK-W-17-821-W1	1110.0	1141.0	31.0	24.9	101.7	0.7	Underdog
OSK-W-17-881	412.0	414.0	2.0	379	6.6	11.0	Lynx
WST-19-0209	72.4	75.1	2.7	267	8.9	7.8	Lynx
OSK-W-17-1343	541.0	546.0	5.0	140	16.4	4.1	Lynx
OSK-W-18-1768	268.7	273.0	4.3	161	14.1	4.7	Lynx
OSK-W-18-1066-W1	779.5	789.3	9.8	68.5	32.2	2.0	Underdog
WST-19-0117	84.5	89.5	5.0	132	16.4	3.9	Lynx
OSK-W-19-1272-W2	775.6	788.0	12.4	52.0	40.7	1.5	Triple Lynx
OSK-W-17-1168	503.6	506.0	2.4	265	7.9	7.7	VNCR
OSK-W-18-1804	280.0	282.8	2.8	224	9.2	6.5	Lynx
OSK-W-17-862-W2	712.7	714.8	2.1	297	6.9	8.7	Vein
OSK-W-16-735	101.8	137.2	35.4	17.0	116.1	0.5	Caribou
OSK-W-18-1546	347.7	349.9	2.2	273	7.2	8.0	Lynx
EAG-11-251	332.6	336.0	3.4	170	11.5	5.0	Zone 27
OSK-W-17-1272	858.4	870.5	12.1	47.8	39.7	1.4	Triple Lynx
OSK-W-18-1603	1491.3	1519.6	28.3	20.4	92.8	0.6	Triple 8
OSK-W-19-1949-W2	719.0	721.0	2.0	288.1	6.6	8.4	Lynx

WINDFALL: 50 TOP INTERCEPTS – BY GRADE

Hole No.	From (m)	To (m)	Interval (m)	Au (g/t) uncut	Interval (feet)	Au (oz/T) uncut	Zone
WST-18-0025	65.0	67.0	2.0	2223	6.6	64.8	Zone 27
OSK-W-18-1725	283.3	286.0	2.7	1026	8.9	29.9	Lynx
OSK-W-17-820	616.5	619.0	2.5	936	8.2	27.3	Caribou
OSK-W-18-1589	101.6	103.8	2.2	742	7.2	21.6	Zone 27
OSK-W-17-913	719.0	721.0	2.0	611	6.6	17.8	Caribou
OSK-W-17-743-W4	796.2	799.0	2.8	585	9.2	17.1	Caribou
EAG-13-466	490.8	497.2	6.4	558	21.0	16.3	Zone 27
OSK-W-18-1639	475.8	481.0	5.2	510	17.1	14.9	Lynx
OSK-W-18-1593	228.1	230.9	2.8	494	9.2	14.4	Lynx
OSK-W-19-1193-W2	996.5	999.8	3.3	491	10.8	14.3	Lynx 4
OSK-W-19-934-W1	918.0	921.7	3.7	489	12.1	14.3	Lynx 4
OSK-W-17-1169	761.0	763.0	2.0	479	6.6	14.0	Lynx
WST-19-0202	81.0	83.0	2.0	453	6.6	13.2	Lynx
OSK-W-19-934-W2	901.8	904.0	2.2	429	7.2	12.5	Lynx 4
OSK-W-17-834	292.0	295.7	3.7	421	12.1	12.3	Lynx
EAG-13-527	226.2	234.0	7.8	416	25.6	12.1	Zone 27
OSK-W-17-1166-W1	1027.0	1032.9	5.9	415	19.4	12.1	Lynx 4
OSK-W-18-1412-W1	720.0	722.7	2.7	403	8.9	11.7	Lynx
OSK-W-19-1883	100.2	102.4	2.2	393	7.2	11.5	Windfall North
OSK-W-16-728	478.1	481.2	3.1	391	10.2	11.4	Caribou
OSK-W-17-881	412.0	414.0	2.0	379	6.6	11.0	Lynx
OSK-W-19-1857	1278.3	1282.6	4.3	322	14.1	9.4	Lynx Extension
OSK-W-16-743	1233.7	1236.3	2.6	303	8.5	8.8	Underdog
OSK-W-17-909	912.0	918.2	6.2	301	20.3	8.8	Lynx 4
OSK-W-17-862-W2	712.7	714.8	2.1	297	6.9	8.7	Vein
OSK-W-19-1949-W2	719.0	721.0	2.0	288	6.6	8.4	Lynx
OBM-16-584	57.0	59.0	2.0	287	6.6	8.4	Vein
OSK-W-18-1550	886.3	889.5	3.2	284	10.5	8.3	Lynx 4
OSK-W-18-1546	347.7	349.9	2.2	273	7.2	8.0	Lynx
WST-19-0209	72.4	75.1	2.7	267	8.9	7.8	Lynx
OSK-W-17-1168	503.6	506.0	2.4	265	7.9	7.7	Vein
OSK-W-17-903	668.5	670.5	2.0	251	6.6	7.3	Vein
OSK-W-18-1804	280.0	282.8	2.8	224	9.2	6.5	Lynx
OSK-W-17-1191	235.4	237.5	2.1	218	6.9	6.4	Zone 27
OSK-W-17-923	890.1	892.5	2.4	210	7.9	6.1	Lynx 4
OSK-W-19-1414-W6	923.4	925.5	2.1	200	6.9	5.8	Lynx 4
OSK-W-18-1638	515.0	517.0	2.0	198	6.6	5.8	Lynx
OSK-EAG-12-333	934.0	936.3	2.3	198	7.5	5.8	Underdog
OSK-W-17-824	28.4	31.0	2.6	195	8.5	5.7	Zone 27
OSK-W-17-1087	354.0	356.6	2.6	191	8.5	5.6	Mallard
OSK-W-17-814	118.5	120.5	2.0	189	6.6	5.5	Zone 27
OSK-W-19-1831	629.6	632.0	2.4	189	7.9	5.5	Lynx 4
OBM-16-610	222.0	224.5	2.5	175	8.2	5.1	Zone 27
OSK-W-17-1383	38.1	40.4	2.3	173	7.5	5.0	Bobcat
EAG-11-251	332.6	336.0	3.4	170	11.5	5.0	Zone 27
OSK-W-19-2068-W2	853.8	861.8	8.0	161	26.2	4.7	Lynx 4
OSK-W-18-1768	268.7	273.0	4.3	161	14.1	4.7	Lynx
OSK-W-17-1142-W1	370.0	372.0	2.0	160	6.6	4.7	Vein
OSK-W-17-857	361.5	364.2	2.7	159	8.9	4.6	Vein
OSK-W-19-1857	1287.8	1290.6	2.8	153	9.2	4.5	Lynx 4

WINDFALL: 50 TOP INTERCEPTS – BY LENGTH*

Hole No.	From (m)	To (m)	Interval (m)	Au (g/t) uncut	Interval (feet)	Au (oz/T) uncut	Zone
EAG-12-318	69.0	94.0	25.0	44.0	82.0	1.3	Zone 27
OSK-W-18-1139-W1	713.0	726.7	13.7	38.9	44.9	1.1	Underdog
OSK-W-19-991-W8	1449.0	1462.0	13.0	106	42.7	3.1	Lynx Extension
OSK-W-19-1272-W1	762.2	774.9	12.7	72.3	41.7	2.1	Triple Lynx
OSK-W-19-1272-W2	775.6	788.0	12.4	52.0	40.7	1.5	Triple Lynx
OSK-W-17-1272	858.4	870.5	12.1	47.8	39.7	1.4	Triple Lynx
OSK-W-19-909-W11	912.2	924.0	11.8	84.6	38.7	2.5	Lynx 4
OSK-W-18-1066-W1	779.5	789.3	9.8	68.5	32.2	2.0	Underdog
OSK-W-17-792	309.5	318.7	9.2	42.1	30.2	1.2	Lynx
OSK-W-16-760	223.0	232.0	9.0	95.3	29.5	2.8	Lynx
OSK-W-17-1336-W1	1064.1	1073.0	8.9	56.1	29.2	1.6	Underdog
OSK-W-17-1363	373.6	382.0	8.4	115	27.6	3.3	Lynx
OSK-W-17-837	320.0	328.4	8.4	97.4	27.6	2.8	Lynx
OSK-W-19-2068-W2	853.8	861.8	8.0	161	26.2	4.7	Lynx 4
EAG-13-527	226.2	234.0	7.8	416	25.6	12.1	Zone 27
OSK-W-19-934-W4	1031.4	1039.2	7.8	37.6	25.6	1.1	Lynx 4
OSK-OBM-16-609	654.3	662.0	7.7	63.2	25.3	1.8	Underdog
OSK-W-17-1006	383.3	390.2	6.9	36.0	22.6	1.0	Lynx
OSK-W-18-1551	249.7	256.3	6.6	49.1	21.7	1.4	Lynx
EAG-13-466	490.8	497.2	6.4	558	21.0	16.3	Zone 27
OSK-W-19-909-W7	976.7	983.0	6.3	51.0	20.7	1.5	Lynx 4
OSK-W-17-909	912.0	918.2	6.2	301	20.3	8.8	Lynx 4
OSK-W-17-1166-W1	1027.0	1032.9	5.9	415	19.4	12.1	Lynx 4
OSK-W-19-1958-W2	1001.3	1007.1	5.8	80.7	19.0	2.4	Lynx 4
OSK-W-19-1857-W8	1415.1	1420.8	5.7	62.4	18.7	1.8	Lynx Extension
OSK-W-18-1557	279.0	284.6	5.6	39.3	18.4	1.1	Lynx
OSK-W-18-1731	585.2	590.5	5.3	83.9	17.4	2.4	Lynx
OSK-W-18-1639	475.8	481.0	5.2	510	17.1	14.9	Lynx
OSK-W-18-1613	221.4	226.6	5.2	46.4	17.1	1.4	Lynx
OSK-W-17-1343-W1	596.7	601.8	5.1	58.7	16.7	1.7	Lynx
OSK-W-17-1343	541.0	546.0	5.0	140	16.4	4.1	Lynx
WST-19-0117	84.5	89.5	5.0	132	16.4	3.9	Lynx
OSK-W-17-1275	844.0	849.0	5.0	76.5	16.4	2.2	Underdog
OSK-W-19-1891	515.8	520.6	4.8	96.7	15.7	2.8	Lynx
OSK-W-17-799	319.8	324.4	4.6	50.9	15.1	1.5	Lynx
OSK-W-17-799	339.8	344.2	4.4	63.8	14.4	1.9	Lynx
OSK-W-19-1857	1278.3	1282.6	4.3	322	14.1	9.4	Lynx Extension
OSK-W-18-1768	268.7	273.0	4.3	161	14.1	4.7	Lynx
OSK-W-17-1345	684.0	688.3	4.3	86.7	14.1	2.5	Caribou
OSK-W-19-2012	303.0	307.2	4.2	52.3	13.8	1.5	Lynx
OSK-EAG-13-480-W2	656.0	660.1	4.1	87.9	13.5	2.6	Underdog
WST-19-0106	126.6	130.7	4.1	64.2	13.5	1.9	Lynx
OSK-W-18-1681	1071.0	1075.1	4.1	61.6	13.5	1.8	Lynx 4
OSK-W-19-1181-W7	1038.9	1042.9	4.0	75.8	13.1	2.2	Lynx 4
OSK-W-19-934-W1	918.0	921.7	3.7	489	12.1	14.3	Lynx 4
OSK-W-17-834	292.0	295.7	3.7	421	12.1	12.3	Lynx
OSK-W-18-1477	783.3	787.0	3.7	86.9	12.1	2.5	Lynx 4
OSK-W-19-1539-W1	468.2	471.8	3.6	104	11.8	3.0	Lynx
EAG-11-251	332.6	336.0	3.5	170	11.5	5.0	Zone 27
OSK-W-1857-W4	1312.8	1316.3	3.5	145	11.5	4.2	Lynx 4

*Length with a corresponding grade greater than one ounce Au per Ton.

Qualified Person

Quality Control and Reporting Protocols

True width determination is estimated at 55-80{4a519b2e1b7ee41c07b52bf609655ec62dee46aaa3d3e6dbc7220444390e11ca} 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, Quality Assurance/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{4a519b2e1b7ee41c07b52bf609655ec62dee46aaa3d3e6dbc7220444390e11ca} of sample pulps are sent to secondary laboratories for check assay.

About the Windfall Lake Gold Deposit

The Windfall Lake gold deposit is located between Val-d’Or and Chibougamau in the Abitibi region of Québec, Canada. The mineral resource defined by Osisko, as disclosed in the Windfall Lake Technical Report (as defined below) and November 27, 2018 Lynx resource update, comprises 2,874,000 tonnes at 8.17 g/t Au (754,000 ounces) in the indicated mineral resource category and 10,352,000 tonnes at 7.11 g/t Au (2,366,000 ounces) in the inferred mineral resource category. For details regarding the key assumptions, parameters and methods used to estimate the mineral resources presented in respect of the Windfall Lake gold project, please see the technical report entitled “Technical Report and Mineral Resource Estimate for the Windfall Lake Project, Windfall Lake and Urban-Barry Properties” and dated June 12, 2018 (effective date of May 14, 2018), which has been prepared by InnovExplo Inc. from Val-d’Or, Québec (the “Windfall Lake Technical Report”) and the news release “Osisko Releases Mineral Resource Update for Lynx” dated November 27, 2018, which has been prepared by Osisko and reviewed and approved by Micon International, Ltd. from Toronto, Ontario. The Windfall Lake Technical Report and news release are available on Osisko’s website (www.osiskomining.com) and on SEDAR (www.sedar.com) under Osisko’s issuer profile. The Windfall Lake gold deposit is currently one of the highest-grade resource-stage gold projects in Canada. Mineralization occurs in four principal zones: Lynx, Zone 27, Caribou and Underdog. All zones comprise sub-vertical lenses following intrusive porphyry contacts plunging to the northeast. The deposit is well defined from surface to a depth of 900 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{4a519b2e1b7ee41c07b52bf609655ec62dee46aaa3d3e6dbc7220444390e11ca} interest in the high-grade Windfall Lake gold deposit located between Val-d’Or and Chibougamau in Québec and holds a 100{4a519b2e1b7ee41c07b52bf609655ec62dee46aaa3d3e6dbc7220444390e11ca} undivided interest in a large area of claims in the surrounding the 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. The information in this news release about the Windfall Lake gold deposit being one of the highest grade resource-stage gold projects in Canada; management’s interpretation of the intercepts from the Windfall drill program; the significance of the intercepts described in this news release; the drill results from the drill program being encouraging or illustrating any potential for mineralization at Windfall; the significance of results from the new infill drilling and ongoing drill definition and expansion program at the Windfall Lake gold project; the significance of intercepts presented in this news release; the deposit remaining open along strike and at depth; potential depth extensions of the mineralized zones down-plunge and at depth; the actual mineralization of local visible gold; the current 800,000 metre drill program; the type of drilling included in the drill program; potential mineralization; the potential to extend mineralization up and down-plunge and at depth at the Windfall Lake gold deposit; the ability to realize upon any mineralization in a manner that is economic; the ability to complete any proposed exploration activities and the results of such activities, including the continuity or extension of any mineralization; and any other information herein that is not a historical fact may be “forward-looking information”. Any statement that involves discussions with respect to 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”, “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 forward-looking information is based on reasonable assumptions and estimates of management of the Corporation at the time such assumptions and estimates were made, and involves known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements of Osisko to be materially different from any future results, performance or achievements expressed or implied by such forward-looking information. 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 interests in the Windfall Lake gold project; the ability of the Corporation to obtain required approvals and complete transactions on terms announced; 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.

For further information please contact:
John Burzynski
President and Chief Executive Officer
Telephone: (416) 363-8653

OSISKO MINING CLOSES $61 MILLION “BOUGHT DEAL” PRIVATE PLACEMENT OF FLOW-THROUGH SHARES, INCLUDING FULL UNDERWRITERS’ OPTION

Posted on December 5, 2019November 8, 2023 by Yannick Fradette

NOT FOR DISTRIBUTION TO U.S. NEWS WIRE SERVICES OR FOR DISSEMINATION IN THE UNITED STATES

(Toronto, December 5, 2019) – Osisko Mining Inc. (TSX:OSK) (“Osisko” or the “Corporation”) is pleased to announce the completion of its previously-announced “bought deal” brokered private placement of an aggregate of 14,848,800 “flow-through shares” of the Corporation (“Flow-Through Shares”) in two tranches as follows:

Tranche One: 8,050,000 Flow-Through Shares at an issue price of $4.70 per Flow-Through Share for aggregate gross proceeds of approximately $37.8 million, including the exercise in full of the underwriters’ option (the “T1 Offering”);

Tranche Two: 6,798,800 Flow-Through Shares at an issue price of $3.40 per Flow-Through Share for aggregate gross proceeds of approximately $23.1 million, including the exercise in full of the underwriters’ option (the “T2 Offering” and, together with the T1 Offering, the “Offering”).

The total proceeds of the Offering are approximately $61 million.

The T1 Offering was co-led by Canaccord Genuity Corp. and Eight Capital. The T2 Offering was led by Canaccord Genuity Corp., on behalf of itself and a syndicate of underwriters that included BMO Nesbitt Burns Inc., CIBC World Markets Inc., National Bank Financial Inc., Cormark Securities Inc., Echelon Wealth Partners Inc., Industrial Alliance Securities Inc., Beacon Securities Limited, and Haywood Securities Inc.

The gross proceeds from the sale of Flow-Through Shares will be used by the Corporation to incur eligible “Canadian exploration expenses” that will qualify as “flow-through mining expenditures” (within the meaning of Income Tax Act (Canada)) related to the Corporation’s projects in Québec on or prior to December 31, 2020 for renunciation to subscribers of Flow-Through Shares effective December 31, 2019.

All securities issued under the Offering will be subject to a hold period expiring four months and one day from the date hereof. The securities offered have not been registered under the U.S. Securities Act of 1933, as amended, and may not be offered or sold in the United States absent registration or an applicable exemption from the registration requirements. This press release shall not constitute an offer to sell or the solicitation of an offer to buy nor shall there be any sale of the securities in any State in which such offer, solicitation or sale would be unlawful.

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 the 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 applicable Canadian securities legislation based on expectations, estimates and projections as at the date of this news release. 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. Forward-looking information in this news release includes, but is not limited to, the use of proceeds of the Offering; the timing and ability of the Corporation, if at all, to obtain final approval of the Offering from the Toronto Stock Exchange; the tax treatment of the Flow-Through Shares; the timing of the tax renunciation to the subscribers; objectives, goals or future plans; statements regarding exploration results and exploration plans. Factors that could cause actual results to differ materially from such forward-looking information include, but are not limited to, capital and operating costs varying significantly from estimates; the preliminary nature of metallurgical test results; delays in obtaining or failures to obtain required governmental, environmental or other project approvals; uncertainties relating to the availability and costs of financing needed in the future; changes in equity markets; inflation; fluctuations in commodity prices; delays in the development of projects; the other risks involved in the mineral exploration and development industry; and those risks set out in the Corporation’s public documents filed on SEDAR at www.sedar.com. Although the Corporation 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 Corporation 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.

For further information please contact:

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

OSISKO INTERSECTS 106 g/t Au OVER 13 METRES IN LYNX EXTENSION

Posted on December 2, 2019November 8, 2023 by Yannick Fradette

(Toronto, December 2, 2019) Osisko Mining Inc. (OSK:TSX. “Osisko” or the “Corporation”) is pleased to provide new drilling 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.

The program is currently focused on infill drilling and expansion drilling at the Lynx deposit, exploration on the main mineralized zones, and deep exploration in the central areas of the mineralized intrusive system. Twenty-one drills are active at Lynx and Triple Lynx, with another three drills conducting infill and exploration drilling on other areas of the deposit.

Infill drilling at Lynx Extension has returned one of the highest-grade intervals intersected a Windfall to date, returning 106 g/t Au over 13.0 metres in OSK-W-19-991-W8. A second infill hole in the Lynx Extension (OSK-W-19-1857-W8) returned 62.4 g/t over 5.7 metres. The infill holes from the 50-metre spacing definition program continue to confirm the continuity of the Lynx Extension zone 315 metres down plunge of the nearest resource wireframe (see Osisko news releases dated June 3, 2019, April 16, 2019 and November 27, 2018). The Lynx Extension remains open down plunge, and definition drilling will continue in the open areas.

Osisko President and Chief Executive Officer John Burzynski commented: “Lynx continues to deliver strong results and is underpinning the high-grade potential of the Windfall deposit. Infill drilling in Lynx Extension is adding good connectivity and meaningful ounces, which should have a positive effect on the upcoming resource update. Exploration is pursuing the down plunge areas of the Lynx zones, all of which remain open at depth.”

Maps and sections 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-19-991-W8	1449.0	1462.0	13.0	106	48.0	Lynx Ext	Lynx
including	1449.0	1449.5	0.5	*16.1*		Lynx Ext.	Lynx
	1449.5	1450.0	0.5	*13.2*
	1450.0	1451.0	1.0	*9.97*
	1451.0	1451.6	0.6	*789*	*100*
	1451.6	1452.3	0.7	*447*	*100*
	1452.3	1453.1	0.8	*149*	*100*
	1453.1	1453.5	0.4	*75.7*
	1453.5	1454.3	0.8	*93.9*
	1454.3	1455.0	0.7	*7.99*
	1455.0	1455.4	0.4	*4.37*
	1455.4	1456.0	0.6	*2.43*
	1456.0	1457.0	1.0	*2.08*
	1457.0	1457.8	0.8	*2.85*
	1457.8	1458.7	0.9	*43.8*
	1458.7	1459.2	0.5	*79.2*
	1459.2	1459.8	0.6	*41.9*
	1459.8	1460.3	0.5	*182*	*100*
	1460.3	1461.0	0.7	*24.4*
	1461.0	1462.0	1.0	*113*	*100*

OSK-W-19-1857-W8	1415.1	1420.8	5.7	62.4	38.3	LYNX Ext.	LYNX
including	1418.3	1419.6	1.3	*206*	*100*	LYNX Ext.	LYNX

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

Drill hole location

Hole Number	Azimuth (°)	Dip (°)	Length (m)	UTM E	UTM N	Elevation	Section
OSK-W-19-991-W8	128	-58	1652	453980	5435993	401	4550
OSK-W-19-1857-W8	108	-58	1527	453525	5435704	405	4000

OSK-W-19-991-W8 intersected 106 g/t Au over 13.0 metres. Mineralization contains local visible gold and electrum, up to 7% pyrite clusters, and local chalcopyrite, sphalerite and galena hosted in a bleached, fuchsite and silica altered gabbro.

OSK-W-19-1857-W8 intersected 62.4 g/t Au over 5.7 metres. Mineralization contains local visible gold and native silver, up to 10% disseminated pyrite and local chalcopyrite associated with strong pyrite-silica flooding hosted in a strong silica, sericite and fuchsite altered gabbro.

Qualified Person

Quality Control and Reporting Protocols

About the Windfall Lake Gold Deposit

About Osisko Mining Inc.

Cautionary Note Regarding Forward-Looking Information

For further information please contact:

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

OSISKO INTERSECTS 161 g/t Au OVER 8.0 METRES AT WINDFALL

Posted on November 25, 2019November 8, 2023 by Yannick Fradette

(Toronto, November 25, 2019) Osisko Mining Inc. (OSK:TSX. “Osisko” or the “Corporation”) is pleased to provide new drilling 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.

The program is currently focused on infill drilling and expansion drilling at the Lynx deposit, exploration on the main mineralized zones, and deep exploration in the central areas of the mineralized intrusive system. Twenty-two drills are active at Lynx and Triple Lynx, with another two drills conducting infill and exploration drilling on other areas of the deposit.

Osisko President and Chief Executive Officer John Burzynski commented: “Infill drilling in the Lynx zones is delivering strong results. We are especially pleased with Triple Lynx as it continues to infill very well and is adding significant ounces. We expect continued good results from Lynx as we progress with our expansion and infill drill program.”

Significant new analytical results from 71 intercepts in 17 surface drill holes and 19 wedges focused on Lynx infill and expansion drilling are presented below. Additionally, 11 intercepts from 9 underground infill drill holes, including the Lynx bulk sample area, are included in the table below.

Intercepts from new results include: 491 g/t Au over 3.3 metres in OSK-19-1193-W2; 161 g/t Au over 8.0 metres in OSK-W-19-2068-W2; 267 g/t Au over 2.7 metres in WST-19-0209; 138 g/t Au over 2.0 metres and 37.4 g/t Au over 5.6 metres in OSK-W-19-1949-W3. Maps showing hole locations and full analytical results are available at www.osiskomining.com.

Surface Drilling

Hole No.	From (m)	To (m)	Interval (m)	Au (g/t) uncut	Au (g/t) cut to 100 g/t	Zone	Corridor
OSK-W-17-1272	898.7	901.6	2.9	12.4		Triple Lynx	Triple Lynx
including	900.7	901.6	0.9	38.8		Triple Lynx	Triple Lynx
OSK-W-18-1560-W2	754.5	765.6	11.1	4.51		Lynx_331	Lynx
OSK-W-18-1582	874.2	877.3	3.1	13.6		Lynx_331	Lynx
OSK-W-18-1687	765.5	767.6	2.1	46.1	40.6	Lynx_331	Lynx
including	766.8	767.6	0.8	115	100	Lynx_331	Lynx
OSK-W-19-923-W4	892.3	894.3	2.0	31.7		Lynx_330	Lynx
including	893.3	894.3	1.0	63.0		Lynx_330	Lynx
OSK-W-19-1193-W2	996.5	999.8	3.3	491	59.9	Lynx_330	Lynx
including	998.0	998.8	0.8	1625	100	Lynx_330	Lynx
OSK-W-19-1272-W3	768.0	789.3	21.3	6.65		Triple Lynx	Triple Lynx
including	780.9	783.7	2.8	11.8		Triple Lynx	Triple Lynx
OSK-W-19-1419-W1	807.9	812.2	4.3	14.0		Lynx_333	Lynx
including	809.0	809.7	0.7	35.4		Lynx_333	Lynx
OSK-W-19-1711-W3	1136.0	1138.0	2.0	6.14		Lynx_327	Lynx
including	1137.7	1138.0	0.3	35.7		Lynx_327	Lynx
OSK-W-19-1857-W7	1371.0	1373.4	2.4	23.1		Lynx 4	Lynx
including	1372.4	1372.9	0.5	65.7		Lynx 4	Lynx
	1421.0	1423.0	2.0	10.0		Lynx 4	Lynx
including	1421.0	1422.0	1.0	19.9		Lynx 4	Lynx
OSK-W-19-1891-W4	576.7	579.3	2.6	4.16		Lynx_315	Lynx
	587.5	589.7	2.2	6.06		Lynx_315	Lynx
OSK-W-19-1947	502.1	504.6	2.5	12.8		Lynx_321	Lynx
including	502.1	503.1	1.0	28.2		Lynx_321	Lynx
	517.5	520.9	3.4	14.1		Lynx_301	Lynx
including	517.5	518.0	0.5	34.7		Lynx_301	Lynx
OSK-W-19-1948	185.0	188.9	3.9	3.67		Lynx_309	Lynx
OSK-W-19-1949-W3	691.2	696.8	5.6	37.4	23.6	Lynx	Lynx
including	692.7	693.8	1.1	170	100	Lynx	Lynx
	698.1	700.4	2.3	3.27		Lynx	Lynx
	1046.0	1048.0	2.0	138	31.3	Lynx_333	Lynx
including	1046.0	1046.6	0.6	456	100	Lynx_333	Lynx
OSK-W-19-1975-W1	1504.2	1506.6	2.4	5.69		Lynx 4 Ext	Lynx
OSK-W-19-1986	952.4	960.6	8.2	3.99		Lynx	Lynx
including	956.0	956.7	0.7	12.4
and	959.4	960.0	0.6	13.5
OSK-W-19-1991	891.2	893.7	2.5	5.10		Lynx 4	Lynx
OSK-W-19-2012	216.0	218.0	2.0	6.44		Lynx_306	Lynx
including	216.0	216.6	0.6	20.9		Lynx_306	Lynx
OSK-W-19-2017	385.0	387.0	2.0	17.9		Lynx_322	Lynx
including	386.0	386.5	0.5	70.5		Lynx_322	Lynx
	415.0	417.0	2.0	6.99		Lynx_301	Lynx
including	415.0	416.0	1.0	13.2		Lynx_301	Lynx
OSK-W-19-2023	206.0	208.0	2.0	11.5		Lynx_302	Lynx
including	207.0	207.4	0.4	57.1		Lynx_302	Lynx
OSK-W-19-2025	186.0	188.0	2.0	19.9		Lynx_302	Lynx
including	186.3	187.1	0.8	49.0		Lynx_302	Lynx
OSK-W-19-2026-W2	927.0	929.3	2.3	9.95		Triple Lynx	Triple Lynx
including	928.4	928.7	0.3	38.4		Triple Lynx	Triple Lynx
	973.0	975.0	2.0	5.98		Triple Lynx	Triple Lynx
	982.6	987.0	4.4	8.71		Triple Lynx	Triple Lynx
including	983.0	984.1	1.1	24.7		Triple Lynx	Triple Lynx
	1000.3	1004.2	3.9	13.7		Triple Lynx	Triple Lynx
including	1003.7	1004.2	0.5	62.7		Triple Lynx	Triple Lynx
	1034.0	1036.4	2.4	35.7		Triple Lynx	Triple Lynx
including	1034.6	1035.4	0.8	99.8		Triple Lynx	Triple Lynx
	1052.6	1054.6	2.0	9.27		Triple Lynx	Triple Lynx
including	1054.3	1054.6	0.3	32.4		Triple Lynx	Triple Lynx
	1083.0	1085.0	2.0	6.97		Triple Lynx	Triple Lynx
including	1083.0	1083.3	0.3	41.8		Triple Lynx	Triple Lynx
OSK-W-19-2026-W3	936.0	938.1	2.1	5.08		Triple Lynx	Triple Lynx
	987.0	989.0	2.0	4.40		Triple Lynx	Triple Lynx
	1059.0	1063.0	4.0	12.7		Triple Lynx	Triple Lynx
OSK-W-19-2035	554.1	556.5	2.4	3.24		Lynx_301	Lynx
	743.0	745.3	2.3	7.82		Lynx 4	Lynx
including	744.1	744.8	0.7	24.9		Lynx 4	Lynx
OSK-W-19-2041-W1	1099.0	1106.0	7.0	3.88		Triple Lynx	Triple Lynx
	1109.0	1113.8	4.8	14.8	13.2	Triple Lynx	Triple Lynx
including	1109.0	1109.5	0.5	116	100	Triple Lynx	Triple Lynx
	1131.9	1134.8	2.9	5.88		Triple Lynx	Triple Lynx
OSK-W-19-2044	143.2	147.3	4.1	10.9		Lynx corridor	Lynx
	192.0	194.0	2.0	33.7		Lynx_344	Lynx
OSK-W-19-2061	155.7	158.0	2.3	3.73		Lynx corridor	Lynx
	252.0	254.3	2.3	5.17		Lynx_335	Lynx
OSK-W-19-2067-W1	1102.5	1105.0	2.5	21.8		Triple Lynx	Triple Lynx
including	1104.3	1105.0	0.7	51.6		Triple Lynx	Triple Lynx
	1120.3	1122.3	2.0	8.20		Triple Lynx	Triple Lynx
including	1121.1	1121.4	0.3	37.7		Triple Lynx	Triple Lynx
	1127.1	1129.1	2.0	8.38		Triple Lynx	Triple Lynx
including	1127.1	1127.4	0.3	51.9		Triple Lynx	Triple Lynx
	1140.1	1142.2	2.1	47.9	14.7	Triple Lynx	Triple Lynx
including	1141.9	1142.2	0.3	332	100	Triple Lynx	Triple Lynx
OSK-W-19-2067-W2	924.3	926.4	2.1	3.38		Triple Lynx	Triple Lynx
	933.0	935.0	2.0	4.02		Triple Lynx	Triple Lynx
	937.7	940.0	2.3	3.71		Triple Lynx	Triple Lynx
	945.0	948.0	3.0	3.74		Triple Lynx	Triple Lynx
	957.4	960.6	3.2	17.8		Triple Lynx	Triple Lynx
	1029.0	1031.3	2.3	14.6		Triple Lynx	Triple Lynx
OSK-W-19-2068-W1	885.5	887.7	2.2	5.63		Lynx_313	Lynx
	942.5	944.5	2.0	3.93		Lynx_327	Lynx
	993.0	995.0	2.0	4.32		Lynx_312	Lynx
OSK-W-19-2068-W2	853.8	861.8	8.0	161	69.7	Lynx_313	Lynx
including	856.5	857.0	0.5	282	100
and	857.6	858.8	1.2	488	100
and	861.2	861.8	0.6	345	100
	934.7	936.8	2.1	6.54		Lynx_312	Lynx
including	934.7	935.3	0.6	18.2		Lynx_312	Lynx
	967.0	969.0	2.0	3.76		Lynx	Lynx
OSK-W-19-2068-W3	893.5	896.0	2.5	22.3		Lynx_313	Lynx
OSK-W-19-2077	808.0	810.0	2.0	15.0		Triple Lynx	Triple Lynx
including	808.6	809.0	0.4	69.5		Triple Lynx	Triple Lynx
OSK-W-19-2084-W1	703.4	706.0	2.6	38.4		Lynx	Lynx
including	704.3	705.0	0.7	69.7
and	705.5	706.0	0.5	68.2
OSK-W-19-2100	980.0	982.1	2.1	3.96		Triple Lynx	Triple Lynx
	989.0	991.6	2.6	8.06		Triple Lynx	Triple Lynx
including	989.0	990.0	1.0	18.6		Triple Lynx	Triple Lynx
OSK-W-19-2107	581.1	593.7	12.6	3.93		Lynx	Lynx
including	584.0	586.0	2.0	7.62		Lynx	Lynx
	690.6	693.5	2.9	3.52		Triple Lynx	Triple Lynx
	699.0	701.1	2.1	3.67		Triple Lynx	Triple Lynx
including	699.9	700.2	0.3	22.2		Triple Lynx	Triple Lynx

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

Underground Drilling

Hole No.	From (m)	To (m)	Interval (m)	Au (g/t) uncut	Au (g/t) cut to 100 g/t	Zone	Corridor
WST-19-0152	52.3	55.2	2.9	3.89		Lynx_308	Lynx
including	52.3	52.7	0.4	15.1		Lynx_308	Lynx
WST-19-0166	73.0	75.0	2.0	4.66		Lynx_305	Lynx
including	73.4	73.9	0.5	17.7		Lynx_305	Lynx
WST-19-0207	75.6	78.0	2.4	10.6		Lynx_309	Lynx
including	76.8	77.1	0.3	76.8		Lynx_309	Lynx
WST-19-0209	72.4	75.1	2.7	267	65.5	Lynx_307	Lynx
including	74.0	74.5	0.5	966	100	Lynx_307	Lynx
WST-19-0211	77.0	81.0	4.0	5.21		Lynx_307	Lynx
WST-19-0212	86.2	88.3	2.1	23.5	19.4	Lynx_311	Lynx
including	87.4	87.8	0.4	122	100	Lynx_311	Lynx
WST-19-0215	162.2	164.6	2.4	53.9	22.4	Lynx_311	Lynx
including	162.2	162.7	0.5	251	100	Lynx_311	Lynx
WST-19-0229	68.8	70.9	2.1	4.54		Lynx_311	Lynx
including	70.6	70.9	0.3	28.7		Lynx_311	Lynx
	76.6	78.6	2.0	5.34		Lynx_308	Lynx
including	77.5	78.2	0.7	11.4		Lynx_308	Lynx
WST-19-0230	129.9	132.	2.1	4.91		Lynx_306	Lynx
including	130.8	131.2	0.4	25.3		Lynx_306	Lynx
	146.0	148.5	2.5	3.57		Lynx_323	Lynx

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

Drill hole location

Hole Number	Azimuth (°)	Dip (°)	Length (m)	UTM E	UTM N	Elevation	Section
OSK-W-17-1272	127	-60	1409	453246	5435535	412	3675
OSK-W-18-1560-W2	145	-53	876	453373	5435483	404	3775
OSK-W-18-1582	143	-50	1248	453279	5435516	410	3700
OSK-W-18-1687	141	-50	1043	453344	5435502	408	3750
OSK-W-19-923-W4	137	-56	1035	453607	5435603	405	4025
OSK-W-19-1193-W2	141	-59	1095	453807	5435721	400	4275
OSK-W-19-1272-W3	127	-60	1164	453246	5435535	412	3675
OSK-W-19-1419-W1	137	-49	906	453453	5435560	408	3875
OSK-W-19-1711-W3	134	-52	1233	453367	5435556	413	3800
OSK-W-19-1857-W7	108	-58	1460	453525	5435704	405	4000
OSK-W-19-1891-W4	135	-52	666	453513	5435472	399	3875
OSK-W-19-1947	137	-46	633	453412	5435463	401	3775
OSK-W-19-1948	121	-45	489	453286	5435277	400	3600
OSK-W-19-1949-W3	105	-57	1326	453440	5435479	401	3825
OSK-W-19-1975-W1	119	-58	1560	453768	5435892	402	4300
OSK-W-19-1986	46	-75	1085	453352	5434424	398	3225
OSK-W-19-1991	358	-46	1266	453561	5434349	398	3375
OSK-W-19-2012	359	-69	321	453482	5435045	396	3650
OSK-W-19-2017	149	-46	471	453466	5435433	399	3825
OSK-W-19-2023	157	-49	243	452825	5434978	406	3050
OSK-W-19-2025	157	-51	276	452977	5435033	408	3200
OSK-W-19-2026-W2	123	-56	1208	453214	5435642	414	3700
OSK-W-19-2026-W3	123	-56	1182	453214	5435642	414	3700
OSK-W-19-2035	134	-51	780	453421	5435432	400	3775
OSK-W-19-2041-W1	118	-49	1350	453231	5435774	408	3775
OSK-W-19-2044	158	-48	441	452820	5435006	406	3050
OSK-W-19-2061	150	-48	468	452783	5435007	407	3025
OSK-W-19-2067-W1	123	-53	1302	453241	5435696	415	3750
OSK-W-19-2067-W2	123	-53	1159	453241	5435696	415	3750
OSK-W-19-2068-W1	116	-53	1049	453316	5435389	403	3675
OSK-W-19-2068-W2	116	-53	1046	453316	5435389	403	3675
OSK-W-19-2068-W3	116	-53	1022	453316	5435389	403	3675
OSK-W-19-2077	127	-57	1123	453147	5435489	418	3575
OSK-W-19-2084-W1	120	-58	1200	453439	5435575	410	3875
OSK-W-19-2100	122	-47	1110	453093	5435726	419	3650
OSK-W-19-2107	23	-70	1095	453423	5434778	396	3475
WST-19-0152	154	-27	121	453290	5435116	204	3525
WST-19-0166	130	-5	121	453290	5435116	205	3525
WST-19-0207	147	-12	139	453178	5435126	174	3425
WST-19-0209	147	-30	130	453178	5435126	173	3425
WST-19-0211	172	14	151	453177	5435125	175	3425
WST-19-0212	131	-13	166	453178	5435126	174	3425
WST-19-0215	144	20	184	453178	5435127	175	3425
WST-19-0229	140	11	112	453215	5435114	222	3450
WST-19-0230	161	20	151	453215	5435114	223	3450

OSK-W-17-1272 intersected 12.4 g/t Au over 2.9 metres in Triple Lynx. Mineralization consists of trace disseminated pyrite in a moderate silica and weak sericite altered rhyolite.

OSK-W-18-1560-W2 intersected 4.51 g/t Au over 11.1 metres in Lynx. Mineralization consists of local visible gold, 5% pyrite stringers and clusters, and trace sphalerite hosted at the contact between a moderate chlorite altered gabbro and a moderate sericite altered rhyolite.

OSK-W-18-1582 intersected 13.6 g/t Au over 3.1 metres in Lynx. Mineralization consists of 5% disseminated pyrite, 2% pyrite stringers, 5% pyrite with ptygmatic quartz-tourmaline veinlets, and irregular quartz veinlets at the contact between a moderated fuchsite altered gabbro and moderate silica-sericite altered rhyolite.

OSK-W-18-1867 intersected 46.1 g/t Au over 2.1 metres in Lynx. Mineralization consists of 7% pyrite stringers and clusters and 1% pyrite with quartz-tourmaline veins hosted in a strongly sericitized and weakly fuchsitized andesite.

OSK-W-19-923-W4 intersected 31.7 g/t Au over 2.0 metres in Lynx. Mineralization consists of local visible gold, 15% disseminated and stringer pyrite, 2% chalcopyrite and trace sphalerite within a moderate sericite and weak fuchsite altered rhyolite.

OSK-W-19-1193-W2 intersected 491 g/t Au over 3.3 metres in Lynx. Mineralization consists of local visible gold and native silver, 2% pyrite-tourmaline veinlets, 10% disseminated pyrite, 1% pyrite clusters, and trace chalcopyrite clusters with quartz-tourmaline veins hosted in a weakly brecciated, moderately silicified and moderately sericitized felsic intrusion.

OSK-W-19-1272-W3 intersected 6.65 g/t Au over 21.3 metres in Triple Lynx. Mineralization consists of 8% disseminated, clustered and stringer pyrite hosted in a moderately sericitized and silicified rhyolite with strongly sericitized gabbro enclaves with local fuchsite.

OSK-W-19-1419-W1 intersected 14.0 g/t Au over 4.3 metres in Lynx. Mineralization consists of quartz crustiform veins with trace disseminate pyrite hosted at a weak sericite and silica altered contact between a rhyolite and a porphyritic felsic dike.

OSK-W-19-1711-W3 intersected 6.14 g/t Au over 2.0 metres in Lynx. Mineralization consists of 1% disseminated pyrite and trace sphalerite within a weak sericite and silica altered rhyolite.

OSK-W-19-1857-W7 intersected 23.1 g/t Au over 2.4 metres in Lynx and 10.0 g/t Au over 2.0 metres in Lynx Extension. The first interval consists of up to 8% disseminated, stringer, and clustered pyrite associated with pervasive silica flooding hosted in a weak sericite altered rhyolite. The second interval consists of trace disseminated and clustered pyrite within a moderate sericite and weak silica altered porphyritic felsic dike.

OSK-W-19-1891-W4 intersected 4.16 g/t Au over 2.6 metres and 6.06 g/t Au over 2.2 metres in Lynx. Both intervals consist of 2% disseminated and clustered pyrite with local smoky silica flooding, ptygmatic tourmaline veinlets and quartz-carbonate veinlets hosted in a sericitized rhyolite in contact with a fuchsitized gabbro.

OSK-W-19-1947 intersected 12.8 g/t Au over 2.5 metres and 14.1 g/t Au over 3.4 metres in Lynx. Both intervals consist of up to 7% disseminated, stringer, and clustered pyrite within a strong fuchsite and sericite altered gabbro.

OSK-W-19-1948 intersected 3.67 g/t Au over 3.9 meters in Lynx. Mineralization consists of 2% pyrite clusters in a moderate silica and weak sericite altered fragmental felsic dike.

OSK-W-19-1949-W3 intersected 37.4 g/t Au over 5.6 metres, 3.27 g/t Au over 2.3 metres and 138 g/t Au over 2.0 metres in Lynx. The first interval consists of local visible gold and 5% pyrite clusters with smoky quartz veins in a moderate sericite altered rhyolite. The second interval consists of 3% clustered, stringer, and disseminated pyrite in a moderate sericite and strong fuchsite altered gabbro. The third interval consist of local visible gold with 3% disseminated, stringer, and clustered pyrite with quartz-tourmaline veins, silica flooding and ptygmatic tourmaline veins in a strong silica and sericite altered rhyolite.

OSK-W-19-1975-W1 intersected 5.69 g/t Au over 2.4 metres in Lynx. Mineralization consists of up to 10% disseminated and clustered pyrite in a weakly to moderately silicified and weakly bleached andesite.

OSK-W-19-1986 intersected 3.99 g/t Au over 8.2 metres in Lynx. Mineralization consists of up to 5% disseminated, clustered, and stringer pyrite and 1% sphalerite hosted in a moderate silica altered porphyritic felsic intrusion.

OSK-W-19-1991 intersected 5.10 g/t Au over 2.5 metres in Lynx. Mineralization consists of 15% pyrite stringers, 10% pyrite clusters, and 5% disseminated pyrite at the contact between a strongly bleached, moderately sericitized, and weakly silicified gabbro and an andesite.

OSK-W-19-2012 intersected 6.44 g/t Au over 2.0 metres in Lynx. Mineralization consists of trace pyrite stringers and clusters with quartz veins in a weakly sericitized and silicified rhyolite with moderate chlorite alteration.

OSK-W-19-2017 intersected 17.9 g/t Au over 2.0 metres and 6.99 g/t Au over 2.0 metres in Lynx. The first interval consists of 3% clustered and stringer pyrite associated with pervasive silica flooding and 3% ptygmatic quartz-tourmaline veins hosted at the contact between a moderate fuchsite altered gabbro and a weak sericite altered porphyritic felsic dike. The second interval consists of trace pyrite stringers associated with pervasive silica flooding hosted in a moderate sericite altered rhyolite.

OSK-W-19-2023 intersected 11.5 g/t Au over 2.0 metres in Lynx. Mineralization consists of local visible gold, 10% pyrite stringers, and 3% pyrite clusters hosted in a moderate silica altered porphyritic felsic intrusion.

OSK-W-19-2025 intersected 19.9 g/t Au over 2.0 metres in Lynx. Mineralization consists of 2% disseminated pyrite associated with quartz-tourmaline veins and up to 5% pyrite clusters hosted in moderate silica altered porphyritic dike.

OSK-W-19-2026-W2 intersected seven intervals in Triple Lynx: 9.95 g/t Au over 2.3 metres, 5.98 g/t Au over 2.0 metres, 8.71 g/t Au over 4.4 metres, 13.7 g/t Au over 3.9 metres, 35.7 g/t Au over 2.4 metres, 9.27 g/t Au over 2.0 metres and 6.97 g/t Au over 2.0 metres. The first interval consists of 1% pyrite stringers associated with ptygmatic tourmaline veins hosted in a weakly sericitized and chloritized rhyolite. The second interval consists of trace disseminated pyrite within a weak sericite altered rhyolite. The third interval consists of 5% pyrite clusters and stringers in a weakly sericitized and bleached gabbro in contact with a rhyolite. The fourth interval consists of 10% disseminated pyrite with a smoky quartz vein in a moderate silica and weak sericite altered rhyolite. The fifth interval consists of up to 7% pyrite stringers within a weak sericite altered rhyolite. The sixth interval consists of up to 25% pyrite and 3% sphalerite associated with smoky quartz veins hosted in a moderate chlorite altered porphyritic felsic intrusion. The last interval consists of local visible gold, up to 15% pyrite stringers and 1% sphalerite within a moderate silica altered and weak chlorite altered rhyolite.

OSK-W-19-2026-W3 intersected 5.08 g/t Au over 2.1 metres, 4.40 g/t Au over 2.0 metres and 12.7 g/t Au over 4.0 metres in Triple Lynx. The first interval consists of 1% disseminated or semi-massive centimetric bands of pyrite in a moderate silica and weak sericite altered porphyritic felsic dike. The second interval consists of 5% disseminated and stringer pyrite in fracture filling in a weak silica and sericite altered rhyolite. The last interval consists of trace disseminated pyrite and 1% pyrite with ptygmatic tourmaline veins in a weakly sericite and silica altered porphyritic felsic dike.

OSK-W-19-2035 intersected 3.24 g/t Au over 2.4 metres and 7.82 g/t Au over 2.3 metres in Lynx. The first interval consists of 10% disseminated pyrite in a moderate fuchsite, silica and weak sericite altered gabbro. The second interval consists of 3% disseminated and clustered pyrite in a weak sericite and moderate silica altered rhyolite.

OSK-W-19-2041-W1 intersected 3.88 g/t Au over 7.0 metres, 14.8 g/t Au over 4.8 metres and 5.88 g/t Au over 2.9 metres in Triple Lynx. The first interval consists of 1% disseminated pyrite and 1% pyrite-tourmaline stringers in a weak silica and moderate sericite altered rhyolite. The second interval consists of local visible gold, 25% disseminated pyrite with tourmaline in a smoky-quartz vein, and 3% disseminated, clustered and stringer pyrite in a sericitized and silica altered rhyolite. The third interval consists of 1% disseminated pyrite and 1% massive pyrite veins in a moderate silica and sericite altered rhyolite.

OSK-W-19-2044 intersected 10.9 g/t Au over 4.1 metres and 33.7 g/t Au over 2.0 metres in Lynx. The first interval consists of 15% disseminated and stringer pyrite and 5% sphalerite associated with quartz-carbonate veins hosted in a moderate silica altered porphyritic felsic intrusion. The second interval consists of up to 10% pyrite stringers and clusters hosted in a weak silica and fuchsite altered gabbro.

OSK-W-19-2061 intersected 3.73 g/t Au over 2.3 metres and 5.17 g/t Au over 2.3 metres in Lynx. The first interval consists of up to 10% pyrite associated with quartz-carbonate veins within a moderate sericite and weak silica altered felsic intrusion. The second interval consists of up to 10% pyrite stringers within a weak silica, sericite and fuchsite altered porphyritic felsic dike.

OSK-W-19-2067-W1 intersected four intervals in Triple Lynx: 21.8 g/t Au over 2.5 metres, 8.20 g/t Au over 2.0 metres, 8.38 g/t Au over 2.0 metres and 47.9 g/t Au over 2.1 metres. The first interval consists of up to 7% pyrite clusters and up to 4% pyrite stringers within a moderately bleached gabbro. The second interval consists of 5% pyrite stringers and 15% crustiform veins hosted in a weak silica and sericite altered rhyolite. The third interval consists of local visible gold and 2% pyrite stringers associated with smoky quartz veins hosted in a weak silica and sericite altered rhyolite. The last interval consists of local visible gold, 2% pyrite stringers and quartz-carbonate veins within a weak silica altered rhyolite.

OSK-W-19-2067-W2 intersected six intervals in Triple Lynx: 3.38 g/t Au over 2.1 metres, 4.02 g/t Au over 2.0 metres, 3.71 g/t Au over 2.3 metres, 3.74 g/t Au over 3.0 metres, 17.8 g/t Au over 3.2 metres and 14.6 g/t Au over 2.3 metres. The first to fourth intervals consist of 1% disseminated or stringer pyrite within a weakly to moderately silicified and moderately sericitized rhyolite. The fifth interval consists of local visible gold in a pervasive silica zone with 20% disseminated or stringer pyrite in a moderate silica and sericite altered rhyolite in contact with moderate chlorite and sericite altered gabbro with 5% disseminated or fracture filling pyrite. The last interval consists of local visible gold and 10% disseminated pyrite with ptygmatic tourmaline veins in a moderate to strongly silicified and sericitized rhyolite.

OSK-W-19-2068-W1 intersected three intervals in Lynx: 5.63 g/t Au over 2.2 metres, 3.93 g/t Au over 2.0 metres and 4.32 g/t Au over 2.0 metres. The first interval consists of up to 5% pyrite stringers associated with ptygmatic tourmaline veins and trace chalcopyrite within a weakly chloritized basalt. The second interval consists of 5% quartz-tourmaline veins and trace chalcopyrite within a weak sericite and silica altered basalt. The last interval consists of trace disseminated and stringer pyrite within a moderate chlorite altered and weak sericite altered basalt.

OSK-W-19-2068-W2 intersected 161 g/t Au over 8.0 metres, 6.54 g/t Au over 2.1 metres and 3.76 g/t Au over 2.0 metres in Lynx. The first interval consists of local visible gold, local native silver, 15% disseminated pyrite, 1% disseminated sphalerite, and 1% disseminated chalcopyrite with silica flooding with local fuchsite hosted in a moderate sericite and strong silica altered rhyolite. The second interval consists of local visible gold, trace sphalerite with silica flooding, 3% pyrite clusters and stringers, and 1% disseminated pyrite in a strong silica and sericite altered rhyolite in contact with a locally fuchsitized gabbro. The last interval is composed of 2% pyrite stringers and clusters within a moderate sericite rhyolite.

OSK-W-19-2068-W3 intersected 22.3 g/t Au over 2.5 metres in Lynx. Mineralization consists of 2% pyrite clusters and 1% pyrite-tourmaline stringers hosted in a moderately sericitized, silicified and weakly fuchsitized rhyolite.

OSK-W-19-2077 intersected 15.0 g/t Au over 2.0 metres in Triple Lynx. Mineralization consists of local visible gold in quartz-tourmaline veins and 5% disseminated pyrite hosted in a strong silica and weak sericite altered rhyolite.

OSK-W-19-2084-W1 intersected 38.4 g/t Au over 2.6 metres in Lynx. Mineralization consists of local visible gold, 3% pyrite clusters and stringers associated with ptygmatic tourmaline veins hosted in a strong silica, moderate sericite and fuchsite altered gabbro.

OSK-W-19-2100 intersected 3.96 g/t Au over 2.1 metres and 8.06 g/t Au over 2.6 metres in Triple Lynx. Mineralization in both intervals consists of 1% pyrite stringers and trace pyrite with quartz-carbonates veins in weak to moderate sericite rhyolite.

OSK-W-19-2107 intersected 3.93 g/t Au over 12.6 metres, 3.52 g/t Au over 2.9 metres and 3.67 g/t Au over 2.1 metres in Triple Lynx. The first interval consists of 7% disseminated and clustered pyrite, and trace sphalerite clusters in a weakly sericitized and moderately silicified porphyritic felsic dike. The second and third intervals consists of 1% pyrite stringers and trace disseminated pyrite in a moderately chloritized and weakly sericitized porphyritic felsic dike.

WST-19-0152 intersected 3.89 g/t Au over 2.9 metres in Lynx. Mineralization consists of local visible gold and 15% pyrite with pervasive silica flooding in a moderate silica altered rhyolite. WST-19-0152 was drilled from underground drill station BM-200-285-S located 285 metres below surface from section 3525E.

WST-19-0166 intersected 4.66 g/t Au over 2.0 metres in Lynx. Mineralization consists of 5% pyrite stringers associated with pervasive silica flooding in a fragmental felsic intrusion. WST-19-0166 was drilled from underground drill station BM-200-285-S located 285 metres below surface from section 3525E.

WST-19-0207 intersected 10.6 g/t Au over 2.4 metres in Lynx. Mineralization consists of local visible gold in a smoky quartz vein, 6% disseminated pyrite and 4% pyrite clusters hosted in a weakly sericitized rhyolite. WST-19-0207 was drilled from underground drill station AN-225-190-O located 225 metres below surface from section 3425E.

WST-19-0209 intersected 267 g/t Au over 2.7 metres in Lynx. Mineralization consists of local visible gold, up to 4% disseminated pyrite, and 1% trace sphalerite within a quartz-tourmaline vein hosted in a weak sericite altered rhyolite. WST-19-0209 was drilled from underground drill station AN-225-190-O located 225 metres below surface from section 3425E.

WST-19-0211 intersected 5.21 g/t Au over 4.0 metres in Lynx. Mineralization consists of finely disseminated pyrite and trace sphalerite associated with smoky quartz veins hosted in a sericitized rhyolite. WST-19-0211 was drilled from underground drill station AN-225-190-O located 225 metres below surface from section 3425E.

WST-19-0212 intersected 23.5 g/t Au over 2.1 metres in Lynx. Mineralization consists of local visible gold with quartz crustiform veins, 8% pyrite clusters, and trace sphalerite hosted in a moderate silica altered rhyolite. WST-19-0212 was drilled from underground drill station AN-225-190-O located 225 metres below surface from section 3425E.

WST-19-0215 intersected 53.9 g/t Au over 2.4 metres in Lynx. Mineralization consists of local visible gold in a crustiform quartz-carbonate vein, 6% disseminated pyrite and 3% pyrite clusters hosted at the contact between a weakly sericitized rhyolite and a gabbro. WST-19-0215 was drilled from underground drill station AN-225-190-O located 225 metres below surface from section 3425E.

WST-19-0229 intersected 4.54 g/t Au over 2.1 metres and 5.34 g/t Au over 2.0 metres in Lynx. The first interval consists of 3% disseminated pyrite, 2% sphalerite within quartz-fuchsite veins, and 2% pyrite clusters hosted in a moderately sericitized porphyritic felsic dike. The second interval consists of 3% pyrite clusters and pyrite-tourmaline stringers, and 10% pyrite within a quartz vein hosted in a moderately sericitized-silicified porphyritic felsic dike. WST-19-0229 was drilled from underground drill station RA-180-190-E located 180 metres below surface from section 3450E.

WST-19-0230 intersected 4.91 g/t Au over 2.1 metres and 3.57 g/t Au over 2.5 metres in Lynx. Mineralization consists of 10% pyrite clusters and stringers in a moderate sericite altered rhyolite. WST-19-0230 was drilled from underground drill station RA-180-190-E located 180 metres below surface from section 3450E.

Qualified Person

Quality Control and Reporting Protocols

About the Windfall Lake Gold Deposit

About Osisko Mining Inc.

Cautionary Note Regarding Forward-Looking Information

For further information please contact:
John Burzynski
President and Chief Executive Officer
Telephone: (416) 363-8653

Osisko Mining Announces C$25 MILLION “Bought Deal”  PRIVATE PLACEMENT OF Flow-Through SHARES

Posted on November 14, 2019November 8, 2023 by Yannick Fradette

NOT FOR DISTRIBUTION TO U.S. NEWS WIRE SERVICES OR FOR DISSEMINATION IN THE UNITED STATES

(Toronto, November 14, 2019) – Osisko Mining Inc. (TSX:OSK) (“Osisko” or the “Corporation“) is pleased to announce that it has entered into an agreement with a syndicate of underwriters consisting of Canaccord Genuity Corp. and Eight Capital Corp. (collectively, the “Underwriters“) in connection with a “bought deal” private placement financing (the “Offering“) of an aggregate of 5,320,000 common shares of the Corporation that will qualify as “flow-through shares” (within the meaning of subsection 66(15) of the Income Tax Act (Canada) and section 359.1 of the Taxation Act (Québec)) (the “Flow-Through Shares“).

The Flow-Through Shares will be issued at a price of C$4.70 (the “Issue Price”) for aggregate gross proceeds of C$25,004,000. In addition, the Company will grant the Underwriters an option (the “Underwriter’s Option”) to sell an additional 798,000 Flow-Through Shares, at the Issue Price for additional gross proceeds of C$3,750,600 exercisable 48 hours prior to the Closing Date.

The gross proceeds from the issue and sale of the Flow-Through Shares will be used by the Corporation to incur eligible “Canadian exploration expenses” that will qualify as “flow-through mining expenditures” as such terms are defined in the Income Tax Act (Canada) (the “Qualifying Expenditures“) related to the Corporation’s projects in Québec on or before December 31, 2020. All Qualifying Expenditures will be renounced in favour of the subscribers of the Flow-Through Shares effective December 31, 2019.

The Offering is expected to close on or about December 5, 2019 and is subject to certain conditions including, but not limited to, the receipt of all necessary approvals including the approval of the Toronto Stock Exchange and the applicable securities regulatory authorities. The Flow-Through Shares to be issued under the Offering will be subject to a hold period in Canada expiring four months and one day from the closing date of the Offering.

The securities offered have not been registered under the U.S. Securities Act of 1933, as amended, and may not be offered or sold in the United States absent registration or an applicable exemption from the registration requirements. This press release shall not constitute an offer to sell or the solicitation of an offer to buy nor shall there be any sale of the securities in any State in which such offer, solicitation or sale would be unlawful.

About Osisko Mining Inc.

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 and projections as at the date of this news release. The information in this news release about the Offering; the use of the proceeds from the Offering; the jurisdictions in which the Flow-Through Shares will be offered or sold; the number of Flow-Through Shares offered or sold; the size of the Offering; the timing and ability of the Corporation to close the Offering, if at all; the timing and ability of the Corporation to satisfy the customary listing conditions of the Toronto Stock Exchange, if at all; the timing and ability of the Corporation to obtain all necessary approvals; the tax treatment of the securities issued under the Offering under the Income Tax Act (Canada) and Taxation Act (Québec); the timing to renounce all Qualifying Expenditures in favour of the subscribers, if at all; and any other information herein that is not a historical fact may be “forward-looking information”. Any statement that involves discussions with respect to predictions, expectations, beliefs, plans, projections, objectives, assumptions, future events or performance (often but not always using phrases such as “expects”, or “does not expect”, “is expected”, “anticipates” or “does not anticipate”, “plans”, “budget”, “scheduled”, “forecasts”, “estimates”, “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 forward-looking information is based on reasonable assumptions and estimates of management of Osisko, at the time it was made, involves known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements of Osisko to be materially different from any future results, performance or achievements expressed or implied by such forward-looking information. Such factors include, among others, risks relating to the Offering; volatility in the trading price of common shares of the Corporation; risks relating to the ability of the Corporation to obtain required approvals, complete definitive documentation and complete the Offering; the ability of Osisko to complete further exploration activities, including drilling; property interests; the results of exploration activities; risks relating to mining activities; the global economic climate; metal prices; dilution; environmental risks; changes in the tax and regulatory regime; 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 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.

For further information please contact:

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

OSISKO CORPORATE UPDATE

Posted on November 13, 2019November 8, 2023 by Yannick Fradette

(Toronto, November 13, 2019) Osisko Mining Inc. (OSK:TSX. “Osisko” or the “Corporation”) is pleased to provide the following corporate update.

Mr. Robert Wares has stepped down from his role as Executive Vice-President Resource Development of the Corporation and has been appointed to the board of directors; Mr. Mathieu Savard has been promoted to Senior Vice President of Exploration; and Mr. Jose Vizquerra Benavides has stepped down from his role as Executive Vice-President Strategic Development of the Corporation to focus on his role as President and Chief Executive Officer of O3 Mining. Jose remains in his role as a director of the Corporation.

Osisko is pleased to announce the appointment of Mr. Robert Wares as a non-executive member of the board of directors effective November 11, 2019. Mr. Wares, a well-recognized and respected figure in the Canadian and international mining industry, is a professional geologist with over 35 years’ experience in mineral exploration and development. Bob was one of the three original founders of Osisko Exploration/Osisko Mining Corporation and was responsible for the discovery of the Canadian Malartic bulk tonnage gold deposit, subsequently developed by Osisko into one of Canada’s largest gold producers. Among other awards, Bob was a co-winner of the Prospectors and Developers Association of Canada’s “Prospector of the Year Award” for 2007, and was named, together with John Burzynski and Sean Roosen, as “Mining Men of the Year” for 2009 by the Northern Miner. Mr. Wares has a BSc. and an Honorary Doctorate in Earth Sciences from McGill University. Bob is currently Executive Chairman of the board of Osisko Metals Incorporated.

The Corporation also announces the appointment of Mathieu Savard as Senior Vice President of Exploration. Mathieu joined Osisko in October 2016 as Vice President, Exploration Quebec and has over 20 years’ experience in exploration in Northern Québec and Canada. Mathieu graduated from the Université du Québec à Montréal with a B.Sc. in earth sciences. Prior to joining Osisko, he was Chief Geologist at Osisko Exploration James Bay Ltd. in Québec, and for 15 years prior to working with the Osisko group, Mathieu was a senior member of the Virginia Gold and Virginia Gold Mines teams. As Project Manager at Virginia, he was instrumental to the development of the Éléonore gold deposit in Northern Québec and was part of the discovery team of the Coulon base metal deposit. He is a member of the Ordre des Géologues du Québec and is a director of the Québec Mineral Exploration Association where he currently serves as President. Mathieu is responsible for the oversight of the Corporation’s exploration and resource development activities.

About Osisko Mining Inc.

For further information please contact:

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

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Author: Yannick Fradette

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