Category: Company

(Toronto, December 12, 2017) – Osisko Mining Inc. (TSX:OSK) (“Osisko” or the “Corporation”) is pleased to announce, that it has completed a “bought deal” brokered private placement of an aggregate 479,550 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)) (“Flow-Through Shares”), at an issue price of $4.80 per Common Share for aggregate gross proceeds of approximately $2.3 million (the “Offering”). Canaccord Genuity Corp. acted as sole underwriter and sole bookrunner in connection with the Offering.

The gross proceeds from the sale of Flow-Through Shares will be used to fund “Canadian exploration expenses” (within the meaning of the Income Tax Act (Canada)) related to Osiskos projects in Ontario on or prior to December 31, 2018 for renunciation to subscribers of Flow-Through Shares effective December 31, 2017.

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% in the high-grade Windfall Lake gold deposit located between Val-dOr and Chibougamau in Québec and holds a 100% undivided interest in a large area of claims in the surrounding Urban Barry area and nearby Quevillon area (over 3,300 square kilometres), a 100% interest in the Marban project located in the heart of Québecs prolific Abitibi gold mining district, and properties in the Larder Lake Mining Division in northeast Ontario, including the Jonpol and Garrcon deposits on the Garrison property, the Buffonta past producing mine and the Gold Pike mine property. The Corporation also holds interests and options in a number of additional properties in northern Quebec and Ontario. Osisko continues to be well financed with approximately $190 million in cash and investments.

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; 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 Corporations 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

(Toronto, October 27, 2017) Osisko Mining Inc. (OSK:TSX “Osisko” or the “Corporation”) is pleased to announce it has completed its first underground blast on schedule at the exploration ramp at its 100% owned Windfall Lake gold project located in Urban Township, Abitibi, Québec. 

Dewatering of the exploration ramp was completed at the end of August. Rehabilitation is on-going and is planned to be completed in the coming month. Underground infrastructure including construction of a powder magazine and various underground excavations is scheduled to be completed in December. The exploration ramp is expected to advance at a rate of approximately 200 metres per month towards the mineralized zones. Underground work, including bulk sampling (for metallurgical testing and grade confirmation) and underground exploration drilling, will commence in Q1 2018.

About the Windfall Lake Gold Deposit
The Windfall Lake gold deposit is located between Val-dOr and Chibougamau in the Abitibi region of Québec, Canada. The mineral resource defined by the previous operator comprises 2,762,000 tonnes at 8.42 g/t Au (748.000 ounces) in the indicated category and 3,512,000 tonnes at 7.62 g/t Au (860,000 ounces) in the inferred category (sourced from a technical report dated June 10, 2015 entitled “Preliminary Economic Assessment of the Windfall Lake Gold Property, Québec, Canada” with an effective date of April 28, 2015, prepared in accordance with NI 43-101). The Windfall Lake gold deposit is currently one of the highest grade resource-stage gold projects in Canada. The bulk of the mineralization occurs in the Main Zone, a southwest/northeast trending zone of stacked mineralized lenses, measuring approximately 600 metres wide and at least 1,400 metres long. The deposit is well defined from surface to a depth of 500 metres, and remains open along strike and at depth. Mineralization has been identified only 30 metres from surface in some areas and as deep as 870 metres in others, with significant potential to extend mineralization up and 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% in the high-grade Windfall Lake gold deposit located between Val-dOr and Chibougamau in Québec and holds a 100% undivided interest in a large area of claims in the surrounding Urban Barry area and nearby Quevillon area (over 3,300 square kilometres), a 100% interest in the Marban project located in the heart of Québecs prolific Abitibi gold mining district, and properties in the Larder Lake Mining Division in northeast Ontario, including the Jonpol and Garrcon deposits on the Garrison property, the Buffonta past producing mine and the Gold Pike mine property. The Corporation also holds interests and options in a number of additional properties in northern Quebec and Ontario.  Osisko continues to be well financed with approximately $250 million in cash and investments.

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 underground blasts scheduled at the exploration ramp at the Windfall Lake gold project; ongoing rehabilitation efforts; the timing to complete rehabilitation efforts, if at all; the timing and ability, if at all, to complete the construction of underground infrastructure, including construction of a powder magazine and underground excavations; the expected advancement rate of the exploration ramp; the timing and ability to commence underground work (including bulk sampling and underground exploration drilling); the Windfall Lake gold deposit being one of the highest grade resource-stage gold projects in Canada;  potential mineralization, including mineralization identified near the surface and at depth; 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”, “managements 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 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 ability of exploration activities (including drill results) to accurately predict mineralization; errors in managements geological modelling; the ability of Osisko to complete further exploration activities, including drilling and underground work; property interests in the Windfall Lake gold project; 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

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

(Toronto, October 5, 2017) – Osisko Mining Inc. (TSX:OSK) (“Osisko” or the “Corporation”) is pleased to announce, further to its announcements on August 29, 2017, that it has completed a “bought deal” brokered private placement of (i) an aggregate of 8,487,800 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)) (“Flow-Through Shares”) for aggregate gross proceeds of approximately $57.4 million, and (ii) an aggregate of 8,334,450 common shares of the Corporation (“Common Shares”) at an issue price of $4.20 per Common Share for aggregate gross proceeds of approximately $35.0 million (the “Offering”). The Flow-Through Shares were issued in two tranches, whereby the first tranche consisted of 6,638,950 Flow-Through Shares at an issue price of $6.93 per “tranche one” Flow-Through Share and the second tranche consisted of 1,848,850 “tranche two” Flow-Through Shares at an issue price of $6.14 per Flow-Through Share.

The Offering was led by Canaccord Genuity Corp. on behalf of a syndicate of underwriters that included BMO Nesbitt Burns Inc., National Bank Financial Inc., Macquarie Capital Markets Canada Ltd., RBC Dominion Securities Inc., Scotia Capital Inc., Eight Capital, Beacon Securities Limited, Cormark Securities Inc., Desjardins Securities Inc., Echelon Wealth Partners Inc., Haywood Securities Inc. and Industrial Alliance Securities Inc.

The gross proceeds from the sale of Flow-Through Shares will be used to fund “Canadian exploration expenses” (within the meaning of the Income Tax Act (Canada)) related to Osiskos projects in Québec on or prior to December 31, 2018 for renunciation to subscribers of Flow-Through Shares effective December 31, 2017. The net proceeds from the sale of Common Shares will be used to fund exploration activities and for general corporate purposes.

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.

The following “insiders” of the Corporation have subscribed for Flow-Through Shares or Common Shares under the Offering:

Insider	Insider Relationship	Shares Purchased (#)	Subscription Amount ($)
Osisko Gold Royalties Ltd	10% Securityholder of Osisko	850,000	$3,570,000
John Burzynski	Director and Senior Officer of Osisko; Director of 10% Securityholder of Osisko	32,600	$200,164
Sean Roosen	Director of Osisko; Director and Senior Officer of 10% Securityholder of Osisko	48,900	$300,246
John Hayes	Senior Officer of Osisko	4,100	$25,174
José Vizquerra(1)	Director and Senior Officer of Osisko	1,008,000	$4,249,120
Robert Wares	Director and Senior Officer of Osisko	35,000	$214,900
Bryan Coates	Senior Officer of 10% Securityholder of Osisko	40,800	$250,512
André Gaumond	Director of 10% Securityholder of Osisko	1,650	$10,131
	Totals	2,021,050	$8,820,247

Note:   (1) Includes subscriptions by José Vizquerra and Mercedes Juliana Benavides.

Each subscription by an “insider” is considered to be a “related party transaction” for purposes of Multilateral Instrument 61-101 – Protection of Minority Security Holders in Special Transactions (“MI 61-101”). Pursuant to MI 61-101, the Corporation has filed a material change report providing disclosure in relation to each “related party transaction” on SEDAR under Osiskos issuer profile at www.sedar.com. The Corporation did not file the material change report more than 21 days before the expected closing date of the Offering as the details of the Offering and the participation therein by each “related party” of the Corporation were not settled until shortly prior to the closing of the Offering, and the Corporation wished to close the Offering on an expedited basis for sound business reasons. The Corporation is relying on exemptions from the formal valuation and minority shareholder approval requirements available under MI 61-101. The Corporation is exempt from the formal valuation requirement in section 5.4 of MI 61-101 in reliance on section 5.5(a) of MI 61-101 as the fair market value of the transaction, insofar as it involves interested parties, is not more than the 25% of the Corporations market capitalization. Additionally, the Corporation is exempt from minority shareholder approval requirement in section 5.6 of MI 61-101 in reliance on section 5.7(b) of MI 61-101 as the fair market value of the transaction, insofar as it involves interested parties, is not more than the 25% of the Corporations market capitalization.

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-dOr and Chibougamau in Québec and holds a 100% undivided interest in a large area of claims in the surrounding Urban Barry area (82,400 hectares), a 100% interest in the Marban project located in the heart of Québecs prolific Abitibi gold mining district, and properties in the Larder Lake Mining Division in northeast Ontario, including the Garrcon and Jonpol zones on the Garrison property, the Buffonta past producing mine and the Gold Pike mine property. The Corporation also holds interests and options in a number of additional properties in northern Ontario. Osisko continues to be well financed and has approximately $190 million in cash and equity investment.

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; an exemption being available under MI 61-101 from the minority shareholder approval and valuation requirements for each related party transaction; 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 Corporations 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

Mr. John Burzynski reports

Osisko Mining Announces $30 Million Increase To Previously Announced Bought Deal Private Placement

Osisko Mining Inc. has amended its agreement with Canaccord Genuity Corp., on behalf of a syndicate of underwriters, in relation to its previously announced two-tranche bought deal private placement of 7,402,000 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)) for aggregate gross proceeds of $50,008,950. The offering has been amended to include an additional 7,143,000 common shares of the corporation at a price of $4.20 per common share for additional gross proceeds of $30,000,600. The terms of the previously announced two-tranche private placement financing of flow-through shares remain unchanged. 

In addition, the underwriters will have the option, exercisable in whole or in part at any time prior to the closing of the offering, to increase the size of the offering of the common shares by up to an additional 1,071,450 common shares. 

The offering is expected to close on or about Oct. 5, 2017, 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 offering is being made by way of private placement in Canada. The securities will not be offered or sold in the United States. The securities issued under the offering will be subject to a hold period expiring four months and one day from the closing date of the offering.

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-per-cent interest in the high-grade Windfall Lake gold deposit located between Val dOr and Chibougamau in Quebec and holds a 100-per-cent undivided interest in a large area of claims in the surrounding Urban Barry area and nearby Quevillon area (over 3,300 square kilometres), a 100-per-cent interest in the Marban project located in the heart of Quebecs prolific Abitibi gold mining district, and properties in the Larder Lake mining division in Northeastern Ontario, including the Jonpol and Garrcon deposits on the Garrison property, the Buffonta past-producing mine, and the Gold Pike mine property. The corporation also holds interests and options in a number of additional properties in Northern Quebec and Ontario. Osisko continues to be well financed with approximately $190-million in cash and investments. 

Expanded Exploration and Continued Infill Drilling Program Planned for 2018

(Toronto, August 28, 2017)  Osisko Mining Inc. (OSK:TSX. “Osisko” or the “Corporation”) is pleased to announce it is increasing the scale of the ongoing drill program at its 100% owned Windfall Lake gold project located in Urban Township, Abitibi, Québec.  Osisko plans to add 400,000 metres of drilling to the current drill program, for a global total of 800,000 metres.  The current drill program will be completed within two months, with 24 drills active on site producing approximately 40,000 metres per month.

The expanded work program will continue to focus on infill drilling of existing mineralized zones and exploring the new discoveries and extensions in the immediate area of the Windfall and Lynx deposits.  New exploration drilling is also planned for 2018 in the northeast and southwest Windfall / Lynx trend and to explore the recently defined Bank Fault.

Osisko’s work on the Windfall Project commenced 22 months ago and has greatly advanced the understanding of the Windfall mineralized system. New drilling lead to a reinterpretation of the existing deposit and the discovery of significant new mineralized zones, including the Lynx deposit and the northeast extension of the Windfall deposit.  The Corporation continues to advance work on its initial resource estimate for the Windfall project which will also include a portion of the new Lynx deposit.  Osisko’s pending initial resource estimate will be based on the pre-existing data base and analyses of the initial 400,000 metres of drilling.

Windfall Project Highlights

• Acquisition of the Windfall Project in August 2015, Osisko began drilling October 2015
• Re-logging of approximately 180,000 metres of previously drilled core completed
• Reinterpretation of Windfall as an intrusion-hosted gold system and a new type of mineralized deposit in the Abitibi Greenstone Belt
• Completion of 330,000 metres of drilling in 22 months
• Expansion of Zone 27, Caribou and Underdog zones
• Discovery of the NE extension of Caribou zone
• Discovery of the Lynx deposit
• Discovery of the Bank Fault as controlling element of mineralized corridor
• Extension of the known Windfall/Lynx mineralized system to its current strike length of over three kilometres
• Discovery of Fox and Black Dog zones
• Consolidation of over 3,300 square kilometres of claims in the Urban-Barry and Quévillon areas and acquisition of the Osborne-Bell deposit
• Permitting and dewatering of existing exploration ramp on schedule, commencement of exploration ramp rehabilitation and preparation for advancing exploration ramp into Lynx and Windfall deposits
• Project description filed
• Camp expansion permitted and completed to accommodate 300 exploration and engineering personnel

President and Chief Executive Officer of Osisko John Burzynski commented: “We are greatly encouraged by the continued flow of solid results we are receiving from Windfall and Lynx.  Our exploration team has worked very hard over the past 22 months to advance the Windfall project, and have been successful in reinterpreting the geology and making a number of significant new discoveries.   While we have directed much of our drill work towards the resource update, we are equally focused on expansion and discovery.  Windfall is proving to be a well-endowed gold system, with the principal gold zones remaining open down plunge to the NE and at depth.  The Windfall project is growing towards what we believe will be world class status in an emerging new gold mining camp.  Our first 400,000 metres of drilling will be completed in October, on schedule. The exploration ramp is also on schedule, and we expect to begin advancing towards the Lynx and Windfall deposits in October.

Resource work is progressing on Zone 27, Caribou, Underdog and a portion of our Lynx discovery.  The initial resource estimate planned for the end of this year will most likely be moved back to the first quarter of 2018, as we are experiencing industry-wide delays in analytical sample turn-around times.  The drill program is currently over 200 holes in advance of our receipt of analytical results, slowing the work on the initial resource estimate.  Despite this delay we will continue to work as quickly as possible.  Through 2018 we will continue to explore the down-plunge and depth extensions of the known zones, as well as commence exploring for new zones of mineralization in the northeast – southwest Windfall / Lynx trend and the Bank Fault area.”

About the Windfall Lake Gold Deposit
The Windfall Lake gold deposit is located between Val-dOr and Chibougamau in the Abitibi region of Québec, Canada. The mineral resource defined by the previous operator comprises 2,762,000 tonnes at 8.42 g/t Au (748,000 ounces) in the indicated category and 3,512,000 tonnes at 7.62 g/t Au (860,000 ounces) in the inferred category (sourced from a technical report dated June 10, 2015 entitled “Preliminary Economic Assessment of the Windfall Lake Gold Property, Québec, Canada” with an effective date of April 28, 2015, prepared in accordance with National Instrument 43-101 – Standards of Disclosure for Mineral Projects). The Windfall Lake gold deposit is currently one of the highest grade resource-stage gold projects in Canada. The bulk of the mineralization occurs in the Main Zone, a southwest/northeast trending zone of stacked mineralized lenses, measuring approximately 600 metres wide and at least 1,400 metres long. The deposit is well defined from surface to a depth of 500 metres, and remains open along strike and at depth. Mineralization has been identified only 30 metres from surface in some areas and as deep as 870 metres in others, with significant potential to extend mineralization up and 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% in the high-grade Windfall Lake gold deposit located between Val-dOr and Chibougamau in Québec and holds a 100% undivided interest in a large area of claims in the surrounding Urban Barry area and nearby Quevillon area (over 3,300 square kilometres), a 100% interest in the Marban project located in the heart of Québecs prolific Abitibi gold mining district, and properties in the Larder Lake Mining Division in northeast Ontario, including the Jonpol and Garrcon deposits on the Garrison property, the Buffonta past producing mine and the Gold Pike mine property. The Corporation also holds interests and options in a number of additional properties in northern Quebec and Ontario.  Osisko continues to be well financed with approximately $190 million in cash and investments.

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 Windfall project growing towards “world class status” in an emerging new gold mining camp; the results of the current 400,000 metre drill program; the timing to complete the current 400,000 metre drill program; the expansion of the current drill program by 400,000 metres of drilling; the timing to complete the initial resource estimate for the Windfall deposit, if at all; the industry-wide delays vis-à-vis turn-around times for analytical samples; the scope of the initial resource estimate for the Windfall deposit, including the deposits to be included in such initial resource estimate; the basis of the initial resource estimate being pre-existing data and analysis of the current 400,000 metre drill program; the number of drills active on site and the approximate metres of drilling per month; the scope and focus of the expanded work program; exploration planned for 2018 in the northeast and southwest Windfall / Lynx trend and to explore the Bank Fault; the significance of new results from the ongoing drill program at the Windfall Lake gold project, including the reinterpretation of the existing deposit and the discovery of significant new mineralized zones; the type of drilling included in the current and expanded drill programs; the significance of new discoveries; the endowment of the Windfall gold system, including principal gold zones remaining open down plunge to the northeast and at depth; the status and advancement of the exploration ramp; 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”, “managements 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 the 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 managements geological modelling; the ability of Osisko to complete further exploration activities, including the current and expanded drill program; 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

Canada 150 Project to Find and Recover Lost Arrow Free Flight Models

(Toronto, July 14, 2017)  Osisko Mining Inc. (OSK:TSX, “Osisko” or the “Corporation”)  is proud to announce that it is a participating sponsor in the search for and recovery of nine Avro Arrow free flight models launched over Lake Ontario in series of tests during 1954 – 1957.  The models are one-eighth scale replicas of the famed flying jet, and were part of the final flight design test work done prior to the production of the CF-105 Arrow.  The goal of the search is to discover the resting place of the nine models, recover and ultimately house them at the Canada Aviation and Space Museum in Ottawa and the National Air Force Museum of Canada in Trenton, Ontario. 

The search and recovery program is a Canada 150 collaborative effort spearheaded by OEX Recovery Group Incorporated, sponsored by Osisko group companies Osisko Mining Inc. and Osisko Gold Royalties Ltd., in collaboration with their financial partners at National Bank, the Bank of Montreal, Canaccord Genuity, Maxit Capital, Eight Capital and Northfield Capital; the Canada Aviation and Space Museum (CASM), Royal Canadian Air Force (RCAF), the Canadian Conservation Institute, and Bennett Jones LLP.  Support for this project is also being provided by Scarlett Janusas Archaeology, Canadian Coast Guard, the Royal Canadian Military Institute and Canada Company.

Later this month Kraken Sonar Inc. of St. John’s (PNG:TSXV) will deploy its ThunderFish® Autonomous Underwater Vehicle and AquaPix® Synthetic Aperture Sonar system in Lake Ontario to search for the scale models of the Avro Arrow.  The highly-advanced Canadian jet fighter and development program was abruptly cancelled in 1959.

The CF-105 Arrow performed well during in-flight tests and many thought it would put Canada at the forefront of military aviation.  When the program was cancelled in 1959, over 30,000 employees and sub-contractors lost their jobs as a direct result of the program’s cancellation.  Many Avro engineers went on to work at Lockheed, Boeing, and NASA, and others to Britain, often cited as an example of Canadian Brain Drain.  All materials related to the Avro Arrow were ordered destroyed, including six completed jet fighters, production tooling, and development-related materials.  The only known artifacts from the program remaining to be found are the free flight test models, which for over sixty years have rested somewhere on the bottom of Lake Ontario.   For Avro Arrow historians, the roughly one-eighth size models are something of a holy grail, since they were the flying replicas of the actual aircraft and the last step from design testing prior to production of the actual flying jets.

The free flight models were launched over Lake Ontario in a series of flights conducted between 1954 and 1957 to test the aerodynamic qualities of the aircraft design prior to a production model and were successively increased in sophistication.

The free flight models were attached to high-powered booster rockets launched out over the lake from a military test site east of Toronto.  After separating from the booster rockets the models flew at supersonic speeds. Their onboard sensors, revolutionary for the 1950s, transmitted flight data back to engineers on the ground.  At the end of each flight the models lost velocity, crashed into the water and sank.

In the past, privately funded missions have attempted to locate and recover the lost models, but all have failed due inadequate funding, water depths, search area size and the amount of metal debris on the bottom – according to military records, more than 600 missiles were launched from the same site, which was also used as an artillery range in the 1930’s.

This summers search for the Avro Arrow free flight models can be likened to the hunt for Sir John Franklin’s lost ships.  The first vessel – the HMS Erebus – was discovered in September 2014 by a Canadian expedition team that included participation by Kraken engineers and its AquaPix® Synthetic Aperture Sonar technology.  However, the Arrow free flight models are far smaller targets.  While the full-size Arrow measured 24 metres long with a 15-metre wingspan, each free flight test model was just 3 metres long with a wingspan of 2 metres.

Like the hunt for Franklin’s lost ships, the search for the Arrow free flight models began with detailed analysis of historical information to narrow the search area as much as possible.  In the Arrow’s case, scientists, engineers and historians from the Osisko group, Kraken and the RCAF used historical research, the collection of archival material at CASM, interviews with former Avro employees and computer-aided ballistic trajectory and flight data modeling to develop the search grids.

John Burzynski, President and CEO of Osisko Mining Inc. stated: “As professional explorers in the mining business, we initiated this program about a year ago with the idea of bringing back a piece of lost Canadian history to the Canadian public.  As individuals, as a company, as a group, and with our partners and our project participants in this search effort, we all have the same goal in mind:  to find and return these beautiful pieces of Canadian technology to the public eye, during this anniversary year of our incredible country.  Like Avro, our own corporate group was built on dreams, and this project is a proud reminder of what we as Canadians have done, what we Canadians do, and what we Canadians can do.”

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% in the high-grade Windfall Lake gold deposit located between Val-dOr and Chibougamau in Québec and holds a 100% undivided interest in a large area of claims in the surrounding Urban Barry and Quévillon areas(over 3,300 square kilometres), a 100% interest in the Marban project located in the heart of Québecs prolific Abitibi gold mining district, and properties in the Larder Lake Mining Division in northeast Ontario, including the Jonpol and Garrcon deposits on the Garrison property. The Corporation also holds interests and options in a number of additional properties in northern Ontario and Québec.  Osisko continues to be well financed with approximately $190 million in cash and investments.

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

Receives Authorization to Begin Ramp Dewatering

(Toronto, June 6, 2017).  Osisko Mining Inc. (OSK:TSX, “Osisko” or the “Corporation”) is pleased to announce that it has filed the Project Description with the federal government (Canadian Environmental Assessment Agency or “CEAA”) and the Preliminary Project Information with the Québec government (Ministère du Développement durable, de lEnvironnement et de la Lutte contre les changements climatiques or “MDDELCC”) for the Windfall Lake project.  The Project Description report is available at www.osiskomining.com. Following review of both documents, CEAA and MDDELCC will provide Osisko with guidelines for executing the project impact assessment.

John Burzynski, President and CEO of Osisko commented:  “Submission of the Project Description and the Preliminary Project Information to the federal and provincial governments represents the first step in the Environmental Approval Processes for Windfall.  We look forward to consulting with all stakeholders as the design of the Windfall Lake project evolves.”

Osisko also received approval from the MDDELCC for the mine water treatment system.  This certificate of authorization (“CA“) allows Osisko to begin dewatering the previously existing ramp in order to conduct advanced exploration, through extending the ramp that was commenced by previous operators. 

Mr. Burzynski continued:  “Receipt of the CA for the ramp dewatering activities is an exciting step in the advancement of the next phase of exploration.  After rehabilitation of the existing ramp, it will allow us to continue to drive forward into the mineralized zones, as well as conduct further exploratory drilling from underground in conjunction with the surface drilling program.”

The Corporation is currently evaluating the Windfall Lake gold project as a potential underground mining operation.  Osisko is well-funded with approximately $190 million in cash and equity investments, and is carrying out an intensive definition drilling and large-scale exploration campaign on Windfall and the surrounding area.  An updated NI 43-101 resource estimate on the Windfall Lake project is planned for release in the second half of 2017.  Osisko has commenced collection of environmental baseline data in the vicinity of Windfall and intends to collect additional data along the potential haul road and around the proposed  site of a mill complex near an existing industrial property (the former Domtar Corporation pulp and paper mill) in Lebel-sur-Quévillo, Québec (the “Site”).

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% in the high-grade Windfall Lake gold deposit located between Val-dOr and Chibougamau in Québec and holds a 100% undivided interest in a large area of claims in the surrounding Urban Barry and Lebel-sur-Quévillon areas, a 100% interest in the Marban project located in the heart of Québecs prolific Abitibi gold mining district, and properties in Ontario, including the Jonpol and Garrcon deposits on the Garrison property. Osisko continues to be well financed with approximately $190 million in cash and investments.  Osisko Gold Royalties Ltd. (OR:TSX / NYSE) is a significant shareholder of the Corporation with approximately 14% ownership.

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 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”, “managements 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 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 timing to obtain feedback, and the nature of the feedback to be received, in relation to the Project Description filed with the federal government (Canadian Environmental Assessment Agency) and the Project Notice filed with the provincial government (Ministère du Développement durable, de lEnvironnement et de la Lutte contre les changements climatiques); feasibility of the Site as a potential mill complex to process mineralized material (if any) from the Windfall Lake gold deposit; the timing and ability to evaluate, if at all, the Site location through the environmental assessment process and to prepare, if at all, feasibility studies for the Windfall Lake gold project; the Site being located on Crown land; the advantages, if any, of the Site over construction at Windfall Lake; receipt of the CA for the ramp dewatering activities in relation to the next phase of exploration, including further exploratory drilling from underground in conjunction with the surface drilling program; the timing and ability, if at all, to extend the ramp and conduct advanced exploration;  the timing and ability if at all, to prepare a technical report in accordance with National Instrument 43-101 – Standards of Disclosure for Mineral Projects in respect of a resource estimate on the Windfall Lake gold project; the use of environmental baseline data; the ability of Osisko to complete further exploration activities; 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.  This news release has been translated into French. Any discrepancies between the English and French versions of this news release, including in this “Cautionary Note Regarding Forward-Looking Information”, shall be resolved in favour of the English version.

CONTACT INFORMATION:
John Burzynski
President & Chief Executive Officer
(416) 363-8653

(Toronto, May 15th, 2017)  Osisko Mining Inc. (OSK:TSX, “Osisko” or the “Corporation”) is pleased to announce that it has mailed materials relating to its Annual and Special Meeting of shareholders (the “Meeting”) being held on June 8, 2017 at 10 a.m. (Toronto Time).

Shareholders of Osisko are being asked to vote on the election of Directors, reappoint PricewaterhouseCoopers LLP as auditors and approve the Corporation’s incentive plans. The Board of Directors recommends a vote in favour of all proposed resolutions.

Materials for the Meeting, including Osiskos management proxy circular (the “Proxy Circular”), have been filed under the Corporations profile on SEDAR at www.sedar.com and are also available on the Corporations website at www.osiskomining.com. Shareholders of Osisko are encouraged to read the Proxy Circular in detail and vote well in advance of the proxy cut-off time on June 6, 2017 at 10 a.m. (Toronto Time).

Shareholder Questions

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

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

(Toronto, April 27, 2017) – Osisko Mining Inc. (TSX:OSK) (“Osisko” or the “Corporation”) is pleased to announce, further to its announcements on April 18, 2017, that the Corporation has completed a private placement financing of 700,000 flow-through common shares of the Corporation (the “Flow-Through Shares”) at a price of $7.15 per Flow-Through Share, for aggregate gross proceeds of $5,005,000 (the “Offering”). The Offering was underwritten by Canaccord Genuity Corp. and Eight Capital, as co-lead underwriters.

The Corporation intends to use the gross proceeds of the Offering to fund “Canadian exploration expenses” (within the meaning of the Income Tax Act (Canada)) related to Osiskos projects in the Province of Ontario, specifically the Jonpol and Garrcon deposits on the Garrison property located in the Larder Lake Mining Division in northeast Ontario.

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% in the high-grade Windfall Lake gold deposit located between Val-dOr and Chibougamau in Québec and holds a 100% undivided interest in a large area of claims in the surrounding Urban Barry area (82,400 hectares), a 100% interest in the Marban project located in the heart of Québecs prolific Abitibi gold mining district, and properties in the Larder Lake Mining Division in northeast Ontario, including the Jonpol and Garrcon deposits on the Garrison property, the Buffonta past producing mine and the Gold Pike mine property. The Corporation also holds interests and options in a number of additional properties in northern Ontario. Osisko continues to be well financed with approximately $195 million in cash and investments (after giving effect to the Offering).

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 timing and ability of the Corporation to complete the formal documentation and obtain the final listing approval of the Toronto Stock Exchange, if at all; the use of the gross proceeds from the Offering; that the gross proceeds of the Offering will be used for “Canadian exploration expenses” (as defined in subsection 66.1(6) of the Income Tax Act (Canada)) related to Osiskos project in the Province of Ontario, specifically the Jonpol and Garrcon deposits on the Garrison property located in the Larder Lake Mining Division in northeast Ontario; that all such “Canadian exploration expenses” will be renounced with an effective date no later than December 31, 2017; 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, including the final approval of Toronto Stock Exchange; 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; 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
Osisko Mining Inc.
Telephone: (416) 363-8653

(Montréal, April 27, 2017). Osisko Mining Inc. (OSK:TSX, “Osisko” or the “Corporation”) is pleased to announce, further to its announcement on March 15, 2017, that it has acquired an additional land package in the area of Lebel-sur-Quévillon, Québec (the “Additional Quévillon Claims”) from Deloitte Restructuring Inc., acting as trustee in bankruptcy for the assets, undertakings and properties of  Maudore Minerals Ltd. With the acquisition of the Additional Quévillon Claims, Osisko now holds a total of 4,150 claims covering a 216,000 hectare (2,160 square kilometres) land package (the “Quévillon Project”).

The Quévillon Project includes approximately 30 known gold showings as well as the historical Osbell gold deposit, which is located 17 kilometres northwest of the town of Lebel-sur-Quévillon and 112 kilometres west of the Windfall Lake gold deposit. The Osbell deposit has been the object of significant historical drilling over the past fifteen years, and will be the focus of new drilling and resource re-evaluation by Osisko.

Osisko acquired the Additional Quévillon Claims in exchange for $1 million in cash and 100,000 common shares of the Corporation payable to FBC Holdings SARL, the secured creditor over the Additional Quévillon Claims. The listing of the common shares of the Corporation to FBC Holdings SARL remains subject to the final approval of the Toronto Stock Exchange, and such shares will be subject to a hold period expiring four months and one day from the date hereof.

Qualified Person
The scientific and technical content of this press release has been reviewed by Mr. Robert Wares, P.Geo. Executive Vice President Exploration for Osisko Mining Inc., a “qualified person” as defined by National Instruments 43-101 – Standards of Disclosure for Mineral Projects.

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% in the high-grade Windfall Lake gold deposit located between Val-dOr and Chibougamau in Québec and holds a 100% undivided interest in a large area of claims in the surrounding Urban Barry area (82,400 hectares), a 100% interest in the Marban project located in the heart of Québecs prolific Abitibi gold mining district, and properties in the Larder Lake Mining Division in northeast Ontario, including the Jonpol and Garrcon deposits on the Garrison property, the Buffonta past producing mine and the Gold Pike mine property. The Corporation also holds interests and options in a number of additional properties in northern Ontario. Osisko continues to be well financed with approximately $195 million in cash and investments (after giving effect to the closing of the offering announced earlier today by the Corporation).

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 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”, “managements 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 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 timing and ability, if at all, to transfer the Additional Quévillon Claims to Osisko; the timing and ability, if at all, to obtain final listing approval of the Toronto Stock Exchange for the issuance of 100,000 common shares of the Corporation to FBC Holdings SARL; the potential, if any, of the Additional Quévillon Claims; the prospectivity and potential of the regional land package in the area of Lebel-sur-Quévillon, Québec; the Additional Quévillon Claims being a high-potential gold target in the immediate area of the historical Osbell deposit; the ability of Osisko to complete further exploration activities, including drilling; property interests in Québec; 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.

CONTACT INFORMATION:
John Burzynski
President & Chief Executive Officer
(416) 363-8653