(Toronto, April 30, 2020) Osisko Mining Inc. (“Osisko”) (TSX: OSK) is pleased to announce that Glass Lewis & Co. (“Glass Lewis”) has recommended that shareholders vote FOR all proposed items to be considered at its upcoming annual meeting of shareholders (“the Meeting”).

Glass Lewis is a prominent, third party proxy advisory firm who, among other services, provides proxy voting recommendations to pension funds, investment managers, mutual funds and other institutional shareholders.  Glass Lewis made their recommendation yesterday that shareholders vote FOR all the proposed items at this year’s annual meeting of shareholders.

Osisko encourages shareholders to read the meeting materials in detail.  Copies of the meeting material is available under Osisko’s profile on SEDAR at www.sedar.com and on Osisko’s website at http://www.osiskomining.com

YOUR VOTE IS IMPORTANT – PLEASE VOTE TODAY

The Osisko Board of Directors UNANIMOUSLY recommends that Shareholders

Vote IN FAVOUR of All the Proposed Items.

Submit your vote well in advance of the proxy voting deadline at 10:00 a.m. Toronto time on Wednesday May 27, 2020

 

Shareholders are encouraged to vote using the internet or telephone, to ensure your vote is received in a timely manner.

 

Registered shareholders may vote by:  Shares held in own name and represented by a physical certificate

• Internet: voteproxyonline.com
• Facsimile: 416-595-9593

 

Beneficial shareholders (shares held with a broker, bank or other intermediary) may vote by:

• Following the instructions on your voting instruction forms

 

Osisko Meeting

The Meeting is scheduled for 10:00 a.m. (Toronto Time) on Friday, May 29, 2020.  Join us via Teleconference. Dial 1-855-342-6455 (North America Toll Free) or 1-416-933-3853 (Outside North America).  Conference ID 2526184. Participants should dial in 5-10 minutes prior to the scheduled start time of the meeting.

 

 

Shareholder Questions and Assistance

If you have any questions or require assistance voting your Osisko shares, please contact our proxy solicitation agent, Laurel Hill Advisory Group, at 1-877-452-7184 toll-free in North America, or call collect outside North America at +1 416 304-0211, or by e-mail at assistance@laurelhill.com

 

About Osisko Mining Inc.

Osisko is a mineral exploration company focused on the acquisition, exploration, and development of precious metal resource properties in Québec, Canada. Osisko holds a 100% interest in the high-grade Windfall gold deposit located between Val d’Or and Chibougamau and has a 100% undivided interest in a large area of claims in the surrounding Urban Barry area and nearby Quévillon area (over 2,700 square kilometres).

 

Triple Lynx Zone Extended 120 Metres Up Plunge Returning 35.3 g/t Au over 2.7 Metres

(Toronto, April 29, 2020) 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.

Operations remain temporarily suspended in respect of the Government of Québec’s closure of all non-essential business in effort to contain COVID-19. When drilling resumes, it will remain focused on the Lynx deposit, the main mineralized zones, and down plunge exploration in the central areas of the mineralized system.

Significant new analytical results from the definition drilling program on Lynx and Triple Lynx are presented below and include 44 intercepts in 16 drill holes, 2 extensions and 13 wedges.

Of note is drill hole OSK-W-20-2217-W2 which returned 35.3 g/t Au over 2.7 metres, confirming the up-plunge extension of the Triple Lynx zone 120 metres from nearest wireframe (see Osisko news release dated February 19, 2020). Also, drill hole OSK-W-19-2170 returned 40.2 g/t Au over 3.5 metres confirming high grade in the down plunge area of Triple Lynx.

Selected high-grade intercepts from new results include: 104 g/t Au over 2.0 metres in WST-20-0323; 76.5 g/t Au over 2.6 metres in OSK-W-18-1747-W1; 41.2 g/t Au over 4.2 metres in WST-20-0386; and 73.6 g/t Au over 2.3 metres in OSK-W-19-1193-W2.  Maps showing hole locations and full analytical results are available at www.osiskomining.com.

Infill 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-17-1000	573.0	577.3	4.3	8.92		Lynx_301	Lynx
including	573.0	574.0	1.0	17.1
OSK-W-18-1639	754.0	757.0	3.0	8.80		Lynx_336	Lynx
including	754.0	755.0	1.0	15.6
OSK-W-18-1741-W1	916.1	918.7	2.6	76.5	50.0	Lynx_329	Lynx
including	916.1	917.0	0.9	177	100
	926.0	928.0	2.0	4.90		Lynx 4	Lynx
OSK-W-19-1104-W4	470.6	473.0	2.4	3.42		Lynx_359	Lynx
including	471.3	471.6	0.3	25.6
	575.0	577.7	2.7	3.72		Lynx_321	Lynx
including	576.5	576.9	0.4	17.6
OSK-W-19-1193-W2	928.2	930.5	2.3	73.6	30.6	Lynx_314	Lynx
including	928.6	929.2	0.6	265	100
OSK-W-19-1731-W2	591.0	593.0	2.0	7.70		Lynx_322	Lynx
including	591.0	592.0	1.0	14.5
OSK-W-19-2059-W1	833.9	836.3	2.4	11.1		Lynx_313	Lynx
including	834.8	835.7	0.9	27.3
OSK-W-19-2067-W4	1028.0	1030.5	2.5	3.25		Lynx_368	Lynx
OSK-W-19-2139-W2	887.4	894.0	6.6	8.34		Lynx_363	Lynx
OSK-W-19-2170	923.1	926.6	3.5	40.2		Triple Lynx	Triple Lynx
including	923.7	924.7	1.0	98.0
OSK-W-19-2197	759.8	762.0	2.2	4.04		Lynx	Lynx
OSK-W-20-1272-W6	898.0	900.0	2.0	10.2		Lynx_364	Triple Lynx
including	899.0	899.4	0.4	45.2
OSK-W-20-1741-W2	860.0	862.0	2.0	3.20		Lynx_347	Lynx
	899.0	901.0	2.0	4.29		Lynx_313	Lynx
including	899.4	900.0	0.6	13.6
OSK-W-20-2059-W3	701.3	704.0	2.7	11.2		Lynx_315	Lynx
including	703.1	704.0	0.9	29.3
OSK-W-20-2217-W1	877.0	879.0	2.0	3.29		Triple Lynx	Triple Lynx
including	877.0	877.4	0.4	9.71
OSK-W-20-2217-W2	755.2	757.9	2.7	35.3	17.0	Triple Lynx	Triple Lynx
including	756.3	756.6	0.3	265	100
OSK-W-20-2243-W1	814.0	816.0	2.0	5.36		Lynx_363	Lynx
WST-19-0328	118.0	120.0	2.0	25.9		Lynx_304	Lynx
including	118.5	119.0	0.5	99.1
WST-20-0260	8.8	10.9	2.1	10.1		Lynx_310	Lynx
including	8.8	9.4	0.6	26.9
	51.0	53.0	2.0	6.29		Lynx_304	Lynx
including	51.7	52.1	0.4	31.0
WST-20-0261	55.0	57.0	2.0	8.28		Lynx_304	Lynx
including	55.7	56.2	0.5	32.9
WST-20-0308	52.6	54.7	2.1	4.56		Lynx_311	Lynx
including	53.6	54.1	0.5	16.9
	81.1	83.4	2.3	3.48		Lynx_320	Lynx
	95.0	98.3	3.3	4.09		Lynx_319	Lynx
WST-20-0316	58.7	61.1	2.4	19.7		Lynx_311	Lynx
WST-20-0319	66.8	69.8	3.0	24.3	18.8	Lynx_323	Lynx
including	69.4	69.8	0.4	141	100
	77.6	80.0	2.4	3.95		Lynx_308	Lynx
	86.0	88.0	2.0	8.09		Lynx_320	Lynx
including	86.0	86.5	0.5	31.4
	94.5	97.1	2.6	22.6		Lynx_304	Lynx
including	94.5	94.9	0.4	94.4
WST-20-0321	50.2	53.0	2.8	4.32		Lynx_303	Lynx
including	50.2	51.0	0.8	15.1
	65.4	67.8	2.4	3.55		Lynx_323	Lynx
WST-20-0323	68.5	70.5	2.0	104	35.9	Lynx_323	Lynx
including	69.1	69.8	0.7	296	100
WST-20-0367A	110.0	112.0	2.0	4.31		Lynx_323	Lynx
including	110.0	110.6	0.6	14.3
	126.7	128.8	2.1	4.97		Lynx_359	Lynx
including	127.6	128.4	0.8	12.9
WST-20-0377	125.1	127.2	2.1	4.56		Lynx_304	Lynx
WST-20-0386	134.1	138.3	4.2	41.2	22.4	Lynx_304	Lynx
including	138.0	138.3	0.3	363	100
WST-20-0413	77.0	79.0	2.0	3.44		Lynx_323	Lynx
	85.8	88.0	2.2	24.3		Lynx_308	Lynx
including	85.8	86.9	1.1	48.3
	99.5	101.7	2.2	18.9		Lynx_304	Lynx
including	101.2	101.7	0.5	69.6
WST-20-0414	59.7	62.0	2.3	4.43		Lynx_311	Lynx
including	61.1	61.4	0.3	24.9
WST-20-0426	141.0	143.4	2.4	9.12		Lynx_304	Lynx
including	142.2	142.8	0.6	28.8

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-17-1000	142	-50	786	453408	5435462	401	3800
OSK-W-18-1639	142	-53	1164	453266	5435397	405	3625
OSK-W-18-1741-W1	144	-48	1083	453328	5435466	406	3725
OSK-W-19-1104-W4	142	-50	933	453383	5435455	402	3775
OSK-W-19-1193-W2	141	-59	1095	453807	5435721	400	4275
OSK-W-19-1731-W2	139	-51	996	453383	5435518	409	3800
OSK-W-19-2059-W1	131	-52	1041	453446	5435477	400	3825
OSK-W-19-2067-W4	123	-53	1203	453241	5435697	416	3750
OSK-W-19-2139-W2	115	-52	1203	452980	5435549	420	3450
OSK-W-19-2170	128	-59	1203	453425	5435657	413	3900
OSK-W-19-2197	121	-48	1059	453087	5435527	418	3550
OSK-W-20-1272-W6	127	-60	1035	453246	5435535	412	3675
OSK-W-20-1741-W2	144	-48	972	453328	5435466	406	3725
OSK-W-20-2059-W3	131	-52	1029	453446	5435477	400	3825
OSK-W-20-2217-W1	134	-48	1044	452943	5435566	419	3425
OSK-W-20-2217-W2	134	-48	893	452943	5435566	419	3425
OSK-W-20-2243-W1	122	-54	960	453087	5435527	418	3550
WST-19-0328	139	39	141	453217	5435115	225	3450
WST-20-0260	169	34	87	453298	5435067	206	3500
WST-20-0261	169	25	73	453298	5435066	205	3500
WST-20-0308	172	-13	160	453291	5435139	163	3525
WST-20-0316	133	-19	124	453292	5435139	163	3525
WST-20-0319	134	-3	118	453292	5435139	163	3525
WST-20-0321	127	-22	133	453292	5435139	163	3525
WST-20-0323	115	6	151	453292	5435140	163	3525
WST-20-0367A	163	-34	166	453450	5435264	115	3725
WST-20-0377	161	-42	175	453493	5435286	116	3775
WST-20-0386	163	-47	178	453493	5435286	116	3775
WST-20-0413	119	-21	139	453292	5435140	163	3525
WST-20-0414	136	-14	121	453292	5435139	163	3525
WST-20-0426	142	-47	172	453493	5435287	116	3775

 

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 Gold Deposit

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

 

About Osisko Mining Inc.

Osisko is a mineral exploration company focused on the acquisition, exploration, and development of precious metal resource properties in Canada. Osisko holds a 100% interest in the high-grade Windfall gold deposit located between Val-d’Or and Chibougamau in Québec and holds a 100% undivided interest in a large area of claims in the surrounding Urban Barry area and nearby Quévillon area (over 2,700 square kilometres).

 

Cautionary Note Regarding Forward-Looking Information

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

 

CONTACT INFORMATION:

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

TORONTO, April 24, 2020 – Osisko Mining Inc. (“Osisko” or the “Corporation”) (TSX: OSK) is pleased to announce that it has filed and commenced mailing of the notice of meeting and management information circular in connection with its annual meeting of shareholders (“the Meeting”) to be held on May 29, 2020 at 10:00 a.m. (Toronto time), at the offices of 155 University Avenue, Suite 1440, Toronto, Ontario, Canada, M5H 3B7.

In view of the current health risks associated with large public gatherings, due to COVID-19, shareholders are asked to not attend the meeting in person, particularly if they are experiencing any of the described COVID-19 symptoms of fever, cough or difficulty breathing. Instead, shareholders will have an equal opportunity regardless of their geographic location to participate in the Meeting by dialing in to our conference line at 1-855-342-6455 (North America Toll Free) or 1-416-933-3853 (Outside North America), followed by the Conference ID 2526184.   Participants should dial in 5-10 minutes prior to the scheduled start time of the meeting.

Additionally, shareholders are encouraged to vote in advance via electronic means prior to the Meeting. To ensure votes are received in a timely manner, shareholders may vote via the internet, by telephone or by facsimile according to the instructions found on the voting form mailed to them.

The Board of Directors Recommends a Vote FOR All Proposed Resolutions.

The proxy deadline to submit votes is on May 27, 2020 at 10:00 a.m. (Toronto time).

The Circular and other relevant materials are available on the Corporation’s website at www.osiskomining.com, or on SEDAR at www.sedar.com under the Corporation’s issuer profile.

Shareholder Questions:

Shareholders who have any questions or require assistance with voting may contact

Osisko’s Proxy Solicitation Agent:

Laurel Hill Advisory Group

Toll Free: 1‐877‐452‐7184

International: +1 416‐304‐0211 outside Canada and the US

By Email: assistance@laurelhill.com

About Osisko Mining

Osisko is a mineral exploration company focused on the acquisition, exploration, and development of precious metal resource properties in Canada. Osisko holds a 100% interest in the high-grade Windfall gold deposit located between Val-d’Or and Chibougamau in Québec and holds a 100% undivided interest in a large area of claims in the surrounding Urban Barry area and nearby Quévillon area (over 2,700 square kilometres).

 

Including 153 g/t Au over 3.4 Metres

(Toronto, April 14, 2020) Osisko Mining Inc. (OSK:TSX. “Osisko” or the “Corporation”) is pleased to provide new infill drilling results from the definition drill program at its 100% owned Windfall gold project located in the Abitibi greenstone belt, Urban Township, Eeyou Istchee James Bay, Québec.

Operations remain temporarily suspended in respect of the Government of Québec’s closure of all non-essential business in effort to contain COVID-19. Osisko is ready to resume drilling activities at Windfall once the temporary suspension is lifted. Drilling will remain focused on the Lynx deposit, exploration on the main mineralized zones, and deep exploration in the central areas of the mineralized system.  Additional results from pre-shut down drilling will continue to be released as they become available in the coming weeks. These analytical results are from laboratories outside Québec that have continued sample processing operations.

Significant new analytical results from Lynx and Triple Lynx are presented below, including 62 intercepts in 27 drill holes and 8 wedges.

Selected high-grade intercepts include: 153 g/t Au over 3.4 metres in WST-19-0234; 108 g/t Au over 2.2 metres in WST-20-0372; 99.2 g/t Au over 2.0 metres in WST-20-0286; 91.3 g/t Au over 2.0 metres in OSK-W-20-2139-W6 and 51.6 g/t Au over 2.8 metres in OSK-W-20-2100-W6. Maps showing hole locations and full analytical results are available at www.osiskomining.com.

 

Hole No.	From (m)	To (m)	Interval (m)	Au (g/t) uncut	Au (g/t)         cut to 100 g/t	Zone	Corridor
OSK-W-18-1639	875.0	877.0	2.0	23.7		Lynx_350	Lynx
including	875.0	876.0	1.0	45.3
OSK-W-20-1072-W5	867.1	869.1	2.0	54.1	18.0	Lynx_330	Lynx
including	868.8	869.1	0.3	341	100
	884.0	886.0	2.0	30.8		Lynx_340	Lynx
including	884.0	885.0	1.0	56.5
	1079.5	1081.5	2.0	3.17		Lynx 4	Lynx
including	1080.4	1080.7	0.3	19.4
OSK-W-20-1272-W6	789.2	792.0	2.8	8.13		Lynx_371	Lynx
including	790.1	790.8	0.7	22.2
	797.0	799.1	2.1	7.56		Lynx_371	Lynx
	804.0	806.0	2.0	4.66		Lynx_361	Lynx
	809.6	812.0	2.4	5.94		Lynx_361	Lynx
	818.1	821.0	2.9	4.82		Lynx_361	Lynx
	823.0	825.0	2.0	3.28		Lynx_361	Lynx
	831.9	835.4	3.5	5.94		Lynx_361	Lynx
including	835.0	835.4	0.4	28.0
	853.0	856.0	3.0	4.36		Lynx_368	Lynx
	859.0	861.0	2.0	3.67		Lynx_368	Lynx
	901.0	903.0	2.0	18.3		Lynx_364	Lynx
including	902.0	903.0	1.0	34.6
OSK-W-20-1731-W6	542.4	545.0	2.6	39.3	35.9	Lynx_310	Lynx
including	543.0	543.9	0.9	110	100
	577.4	580.2	2.8	11.5		Lynx_305	Lynx
including	577.4	577.7	0.3	59.9
	1000.5	1003.0	2.5	4.90		Lynx_327	Lynx
OSK-W-20-2100-W6	927.5	930.3	2.8	51.6	34.3	Lynx_361	Lynx
including	928.9	929.2	0.3	262	100
OSK-W-20-2100-W9	931.0	933.0	2.0	4.38		Lynx_361	Lynx
OSK-W-20-2123-W4	1112.0	1114.0	2.0	3.13		Lynx_368	Lynx
	1168.0	1173.0	5.0	8.48		Lynx_364	Lynx
	1184.0	1186.5	2.5	7.70		Lynx_370	Lynx
OSK-W-20-2139-W6	874.8	876.8	2.0	91.3	45.7	Lynx_361	Lynx
including	876.0	876.4	0.4	328	100
OSK-W-20-2202-W2	969.6	972.0	2.4	14.2	13.3	Lynx_363	Lynx
including	970.1	970.4	0.3	107	100
OSK-W-20-2243	789.6	792.0	2.4	19.4	18.4	Lynx_361	Lynx
including	790.2	790.5	0.3	108	100
	795.0	797.0	2.0	7.13		Lynx_361	Lynx
	800.1	802.4	2.3	5.01		Lynx_361	Triple Lynx
WST-19-0234	69.2	72.6	3.4	153	17.8	Lynx_311	Lynx
Including	69.2	69.5	0.3	1630	100
WST-19-0239	66.6	69.1	2.5	9.88		Lynx_311	Lynx
including	68.5	69.1	0.6	37.9
WST-19-0240	74.4	77.0	2.6	9.52		Lynx_308	Lynx
including	74.4	74.8	0.4	56.2
WST-20-0283	65.6	68.0	2.4	6.95		Lynx_311	Lynx
including	66.3	66.8	0.5	24.8
WST-20-0285	113.9	116.0	2.1	3.93		Lynx_320	Lynx
including	114.8	115.3	0.5	15.3
	118.0	120.0	2.0	3.35		Lynx_319	Lynx
including	118.6	119.2	0.6	10.9
WST-20-0286	54.3	56.3	2.0	99.2	55.1	Lynx_311	Lynx
including	55.7	56.3	0.6	247	100
WST-20-0294	67.9	70.0	2.1	19.7		Lynx_311	Lynx
including	67.9	68.8	0.9	45.5
WST-20-0295	63.6	65.6	2.0	27.0	21.0	Lynx_311	Lynx
including	64.9	65.3	0.4	130	100
WST-20-0302	74.0	76.2	2.2	5.09		Lynx_311	Lynx
including	75.6	76.2	0.6	17.7
WST-20-0322	68.8	71.0	2.2	24.6	13.8	Lynx_323	Lynx
including	68.8	69.1	0.3	179	100
	129.5	131.5	2.0	12.3		Lynx_306	Lynx
including	130.6	131.5	0.9	26.0
WST-20-0337	68.0	70.1	2.1	6.21		Lynx_323	Lynx
including	69.4	70.1	0.7	12.6
	90.0	92.5	2.5	6.10		Lynx_304	Lynx
including	90.0	90.3	0.3	38.7
WST-20-0340	78.5	80.6	2.1	8.07		Lynx_323	Lynx
including	78.5	79.2	0.7	23.9
	87.7	89.7	2.0	69.2	62.2	Lynx_304	Lynx
including	88.3	89.1	0.8	118	100
	111.0	113.0	2.0	4.40		Lynx_359	Lynx
WST-20-0359	107.0	109.3	2.3	3.04		Lynx_304	Lynx
WST-20-0362	119.0	121.0	2.0	3.45		Lynx_359	Lynx
WST-20-0363	68.9	71.0	2.1	4.49		Lynx_311	Lynx
	115.5	118.0	2.5	3.16		Lynx_304	Lynx
including	116.3	116.7	0.4	17.9
	122.0	124.5	2.5	16.3		Lynx_359	Lynx
including	123.0	123.8	0.8	50.2
WST-20-0364	110.0	112.0	2.0	7.37		Lynx_304	Lynx
including	111.3	111.6	0.3	17.9
WST-20-0365	120.7	123.0	2.3	3.44		Lynx_359	Lynx
including	122.7	123.0	0.3	14.6
WST-20-0371	136.8	138.9	2.1	13.7		Lynx_304	Lynx
including	138.3	138.9	0.6	43.9
WST-20-0372	126.5	128.5	2.0	5.67		Lynx_304	Lynx
including	127.7	128.0	0.3	31.4
	130.0	132.7	2.7	23.2	17.5	Lynx_304	Lynx
including	132.3	132.7	0.4	139	100
	205.6	207.8	2.2	108	31.7	Lynx_322	Lynx
including	206.6	207.2	0.6	378	100
WST-20-0378	146.0	148.3	2.3	20.6		Lynx_304	Lynx
including	147.0	147.7	0.7	45.9
	200.0	202.2	2.2	18.6		Lynx_322	Lynx
including	200.5	200.9	0.4	95.3
WST-20-0379A	132.0	134.4	2.4	4.54		Lynx_304	Lynx
including	133.5	133.9	0.4	18.8
WST-20-0381	54.1	56.4	2.3	38.1	35.2	Lynx_311	Lynx
including	54.1	54.9	0.8	109	100
WST-20-0382	52.1	54.4	2.3	6.08		Lynx_309	Lynx
WST-20-0383	50.0	52.0	2.0	3.03		Lynx_309	Lynx
including	50.4	51.3	0.9	6.69
WST-20-0390	111.0	113.8	2.8	22.9	18.2	Lynx_304	Lynx
including	112.1	112.6	0.5	127	100

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

 

Drill hole location

Hole Number	Azimuth (°)	Dip (°)	Length (m)	UTM E	UTM N	Elevation	Section
OSK-W-18-1639	142	-53	1164	453266	5435397	405	3625
OSK-W-20-1072-W5	145	-57	1262	453612	5435532	399	4000
OSK-W-20-1272-W6	127	-60	1035	453246	5435535	412	3675
OSK-W-20-1731-W6	139	-51	1068	453383	5435518	409	3800
OSK-W-20-2100-W6	122	-47	1260	453093	5435726	419	3650
OSK-W-20-2100-W9	122	-47	1074	453093	5435726	419	3650
OSK-W-20-2123-W4	126	-57	1236	453231	5435774	400	3775
OSK-W-20-2139-W6	115	-52	1089	452980	5435549	420	3450
OSK-W-20-2202-W2	127	-54	1146	452999	5435606	424	3500
OSK-W-20-2243	122	-54	815	453087	5435527	418	3550
WST-19-0234	150	17	157	453216	5435114	224	3450
WST-19-0239	173	1	91	453215	5435114	223	3450
WST-19-0240	135	-3	178	453217	5435115	223	3450
WST-20-0283	165	25	214	453228	5435126	137	3475
WST-20-0285	161	25	211	453228	5435126	137	3475
WST-20-0286	153	16	85	453228	5435126	136	3475
WST-20-0294	131	13	96	453228	5435126	135	3475
WST-20-0295	131	-7	166	453229	5435127	135	3475
WST-20-0302	112	-30	120	453229	5435126	135	3475
WST-20-0322	125	6	154	453292	5435140	163	3525
WST-20-0337	145	-6	203	453411	5435230	114	3675
WST-20-0340	147	-26	135	453410	5435229	114	3675
WST-20-0359	151	-17	145	453450	5435264	115	3725
WST-20-0362	156	-14	148	453450	5435264	115	3725
WST-20-0363	157	-30	154	453450	5435264	115	3725
WST-20-0364	157	-25	282	453450	5435264	115	3725
WST-20-0365	158	-8	142	453450	5435264	116	3725
WST-20-0371	145	-47	163	453493	5435287	116	3775
WST-20-0372	148	-42	451	453493	5435287	116	3775
WST-20-0378	144	-50	253	453493	5435287	116	3775
WST-20-0379A	143	-41	277	453493	5435287	116	3775
WST-20-0381	145	9	82	453228	5435126	136	3475
WST-20-0382	147	-3	158	453228	5435126	135	3475
WST-20-0383	155	-17	92	453227	5435125	135	3475
WST-20-0390	158	-35	175	453450	5435264	115	3725

 

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 Gold Deposit

The Windfall gold deposit is located between Val-d’Or and Chibougamau in Eeyou Istchee James Bay, Québec, Canada. The mineral resource defined by Osisko, as disclosed in the news release dated February 19, 2020, and assuming a cut-off grade of 3.5 g/t, comprises 4,127,000 tonnes at 9.1 g/t Au (1,206,000 ounces) in the indicated mineral resource category and 14,532,000 tonnes at 8.40 g/t Au (3,938,000 ounces) in the inferred mineral resource category. The key assumptions, parameters and methods used to estimate the mineral resource estimate disclosed in the February 19,2020 news release are further described in the full technical report in accordance with NI 43-101, available on SEDAR (www.sedar.com) under the Corporation’s issuer profile. The Windfall gold deposit is currently one of the highest-grade resource-stage gold projects in Canada and has world-class scale. Mineralization occurs in three principal zones: Lynx, Main Zone, and Underdog.  Mineralization is generally comprised of sub-vertical zones following intrusive porphyry contacts plunging to the northeast. The deposit is well defined from surface to a depth of 1,200 metres and remains open along strike and at depth. Mineralization has been identified 30 metres from surface in some areas and as deep as 2,000 metres in others, with significant potential to extend mineralization down-plunge and at depth.

 

About Osisko Mining Inc.

Osisko is a mineral exploration company focused on the acquisition, exploration, and development of precious metal resource properties in Canada. Osisko holds a 100% interest in the high-grade Windfall gold deposit located between Val-d’Or and Chibougamau in Québec and holds a 100% undivided interest in a large area of claims in the surrounding Urban Barry area and nearby Quévillon area (over 2,700 square kilometres).

 

Cautionary Note Regarding Forward-Looking Information

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

 

CONTACT INFORMATION:

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

143 g/t Au Over 2.0 Metres in Lynx Extension

35 g/t Au Over 5.3 Metres in Triple Lynx

(Toronto, April 7, 2020) Osisko Mining Inc. (OSK:TSX. “Osisko” or the “Corporation”) is pleased to provide new infill drilling results from the 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.

Operations are temporarily suspended in respect of the Government of Québec’s closure of all non-essential business in effort to contain COVID-19. Osisko is ready to resume drilling activities at Windfall once the temporary suspension is lifted. Drilling will remain focused on the Lynx deposit, exploration on the main mineralized zones, and deep exploration in the central areas of the mineralized system.

Significant new analytical results are presented below and include 35 intercepts in 7 drill holes, 8 wedges and one extension of a previous drilled hole.  All intercepts reported below are located outside the February 2020 mineral resource estimate wireframes (see Osisko news release dated February 19, 2020) and represent expansion of known mineralized zones.

Selected high-grade intercepts include: 143 g/t Au over 2.0 metres and 64.4 g/t Au over 2.2 metres in OSK-W-19-2197-W1; 35.0 g/t Au over 5.3 metres in OSK-W-20-2123-W4; 39.8 g/t Au over 2.3 metres in OSK-W-20-2139-W6; and 37.3 g/t Au over 2.4 metres in WST-20-0339. Maps showing hole locations and full analytical results are available at www.osiskomining.com.

 

Hole No.	From (m)	To (m)	Interval (m)	Au (g/t) uncut	Au (g/t)         cut to 100 g/t	Zone	Corridor
OSK-W-17-1258	1014.3	1023.1	8.8	9.72		Lynx 4	Lynx
including	1020.3	1021.3	1.0	49.6
	1030.8	1033.1	2.3	5.68		Lynx 4	Lynx
including	1031.4	1031.9	0.5	25.8
OSK-W-19-2123-W3	1002.0	1004.8	2.8	3.23		Triple Lynx	Lynx
	1147.0	1149.4	2.4	4.30		Lynx_363	Lynx
including	1149.0	1149.4	0.4	13.9
OSK-W-19-2197-W1	1047.8	1050.0	2.2	64.4	20.4	Lynx_374	Lynx
including	1048.6	1048.9	0.3	423	100
	1062.0	1064.0	2.0	143	45.4	Lynx_374	Lynx
including	1062.5	1063.4	0.9	317	100
OSK-W-19-2217	781.9	784.0	2.1	16.8		Triple Lynx	Triple Lynx
including	782.6	783.0	0.4	78.9
	791.6	793.6	2.0	3.11		Triple Lynx	Triple Lynx
	905.5	908.0	2.5	8.61		Triple Lynx	Triple Lynx
including	905.5	906.5	1.0	17.4
	961.2	966.3	5.1	13.4		Triple Lynx	Triple Lynx
including	963.7	964.2	0.5	98.4
OSK-W-20-1072-W4	966.6	968.8	2.2	29.3		Lynx 4	Lynx 4
	1010.0	1012.0	2.0	11.5		Lynx 4	Lynx 4
including	1011.0	1012.0	1.0	20.6
OSK-W-20-1272-W6	842.0	848.0	6.0	12.7		Triple Lynx	Triple Lynx
	990.0	992.0	2.0	4.33		Lynx_370	Lynx
	997.8	1000.0	2.2	8.60		Triple Lynx	Triple Lynx
including	999.0	999.5	0.5	28.1
OSK-W-20-1731-W6	593.0	595.4	2.4	6.78		Lynx	Lynx
including	593.5	593.8	0.3	21.3
OSK-W-20-2100-W9	949.0	954.4	5.4	4.57		Triple Lynx	Triple Lynx
OSK-W-20-2123-W4	1086.0	1088.0	2.0	4.00		Lynx 361	Lynx
	1096.0	1098.0	2.0	12.6		Triple Lynx	Triple Lynx
	1128.0	1130.3	2.3	5.31		Triple Lynx	Triple Lynx
	1177.2	1182.5	5.3	35.0	33.6	Triple Lynx	Lynx
including	1177.5	1178.0	0.5	116	100
	1198.0	1200.0	2.0	8.07		Triple Lynx	Triple Lynx
OSK-W-20-2139-W6	902.0	904.3	2.3	39.8	16.6	Triple Lynx	Triple Lynx
including	902.4	902.7	0.3	278	100
	912.3	914.3	2.0	5.64		Triple Lynx	Triple Lynx
including	913.6	913.9	0.3	34.5
OSK-W-20-2243	789.6	792.0	2.4	19.4	18.4	Lynx_361	Lynx
including	790.2	790.5	0.3	108	100
	800.1	802.4	2.3	5.01		Triple Lynx	Triple Lynx
WST-20-0337	102.5	104.6	2.1	4.69		Lynx	Lynx
including	104.3	104.6	0.3	27.7
WST-20-0339	55.0	57.5	2.5	5.43		Lynx	Lynx
	93.0	95.4	2.4	37.3	32.3	Lynx_304	Lynx
including	93.5	94.1	0.6	120	100
	182.0	184.7	2.7	4.49		Lynx _321	Lynx
	191.2	194.3	3.1	5.35		Lynx _321	Lynx
WST-20-0340	62.0	64.5	2.5	6.79		Lynx	Lynx
including	64.0	64.5	0.5	31.5
WST-20-0365	90.4	93.0	2.6	9.78		Lynx	Lynx
including	92.2	92.6	0.4	50.8
WST-20-0372	189.2	191.5	2.3	7.73		Lynx HW	Lynx
including	190.9	191.5	0.6	26.1
	431.7	434.0	2.3	21.6		Lynx 4	Lynx 4
including	433.2	434.0	0.8	61.4

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-17-1258	126	-51	1128	452972	5435211	416	3275
OSK-W-19-2123-W3	126	-57	1284	453231	5435774	400	3775
OSK-W-19-2197-W1	121	-48	1104	453087	5435527	418	3550
OSK-W-19-2217	134	-48	1172	452943	5435566	419	3425
OSK-W-20-1072-W4	145	-57	1092	453612	5435532	399	4000
OSK-W-20-1272-W6	127	-60	1035	453246	5435535	412	3675
OSK-W-20-1731-W6	139	-51	1068	453383	5435518	409	3800
OSK-W-20-2100-W9	122	-47	1074	453093	5435726	419	3650
OSK-W-20-2123-W4	126	-57	1236	453231	5435774	400	3775
OSK-W-20-2139-W6	115	-52	1089	452980	5435549	420	3450
OSK-W-20-2243	122	-54	815	453087	5435527	418	3550
WST-20-0337	145	-6	203	453411	5435230	114	3675
WST-20-0339	146	-18	295	453410	5435229	114	3675
WST-20-0340	147	-26	135	453410	5435229	114	3675
WST-20-0365	158	-8	142	453450	5435264	116	3725
WST-20-0372	148	-42	451	453493	5435287	116	3775

 

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 Gold Deposit

The Windfall gold deposit is located between Val-d’Or and Chibougamau in Eeyou Istchee James Bay, Québec, Canada. The mineral resource defined by Osisko, as disclosed in the news release dated February 19, 2020, and assuming a cut-off grade of 3.5 g/t, comprises 4,127,000 tonnes at 9.1 g/t Au (1,206,000 ounces) in the indicated mineral resource category and 14,532,000 tonnes at 8.40 g/t Au (3,938,000 ounces) in the inferred mineral resource category. The key assumptions, parameters and methods used to estimate the mineral resource estimate disclosed in the February 19,2020 news release are further described in the full technical report in accordance with NI 43-101, available on SEDAR (www.sedar.com) under the Corporation’s issuer profile. The Windfall gold deposit is currently one of the highest-grade resource-stage gold projects in Canada and has world-class scale. Mineralization occurs in three principal zones: Lynx, Main Zone, and Underdog.  Mineralization is generally comprised of sub-vertical zones following intrusive porphyry contacts plunging to the northeast. The deposit is well defined from surface to a depth of 1,200 metres and remains open along strike and at depth. Mineralization has been identified 30 metres from surface in some areas and as deep as 2,000 metres in others, with significant potential to extend mineralization down-plunge and at depth.

 

About Osisko Mining Inc.

Osisko is a mineral exploration company focused on the acquisition, exploration, and development of precious metal resource properties in Canada. Osisko holds a 100% interest in the high-grade Windfall gold deposit located between Val-d’Or and Chibougamau in Québec and holds a 100% undivided interest in a large area of claims in the surrounding Urban Barry area and nearby Quévillon area (over 2,700 square kilometres).

 

Cautionary Note Regarding Forward-Looking Information

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

 

CONTACT INFORMATION:

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

(Toronto, April 3, 2020) Osisko Mining Inc. (OSK:TSX, “Osisko” or the “Corporation”) is pleased to announce that it has filed a technical report in accordance with National Instrument 43-101 – Standards of Disclosure for Mineral Projects to update the mineral resource estimate on its 100% owned Windfall gold deposit. The technical report entitled “An updated mineral resource estimate for the Windfall Lake Project, Located in the Abitibi Greenstone Belt, Urban Township, Eeyou Istchee James Bay, Québec, Canada” and dated April 3, 2020 (effective date of January 3, 2020) has been prepared for Osisko by Micon International Limited and BBA Inc. The technical report is available on SEDAR (www.sedar.com) under Osisko’s issuer profile.

 

About Osisko Mining Inc.

Osisko is a mineral exploration company focused on the acquisition, exploration, and development of precious metal resource properties in Canada. Osisko holds a 100% interest in the high-grade Windfall gold deposit located between Val-d’Or and Chibougamau in Québec and holds a 100% undivided interest in a large area of claims in the surrounding Urban Barry area and nearby Quévillon area (over 2,700 square kilometres).

 

Cautionary Statements Regarding Mineral Resource Estimate

Readers are cautioned that mineral resources are not mineral reserves and that the economic viability of mineral resources that are not mineral reserves has not been demonstrated. The mineral resource estimate described in this news release may be materially affected by geology, environmental, permitting, legal, title, socio-political, marketing or other relevant issues. The mineral resource estimate is classified in accordance with the Canadian Institute of Mining, Metallurgy and Petroleum’s “CIM Definition Standards on Mineral Resources and Mineral Reserves” incorporated by reference into National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“NI 43-101”). Readers are cautioned not to assume that further work on the stated mineral resources will lead to mineral reserves that can be mined economically.

 

CONTACT INFORMATION:

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