Canadian Malartic Corporation
Corporate brand
UnclaimedCanadian mining company associated with the development and operation of the Canadian Malartic gold mine in Quebec.
Last updated August 26, 2026
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Overview
Canadian Malartic Corporation is a Canadian gold-mining company associated with the Canadian Malartic mine near Malartic, Quebec. The company is the successor entity to Osisko Mining Corporation after the 2014 takeover contest that ended Osisko's existence as an independent public company. Its business history is therefore closely tied to Osisko's evolution from a Quebec-focused mineral exploration venture into the developer and operator of one of Canada's largest open-pit gold mines. The corporate lineage began in 1982, when the business was incorporated as Ormico Exploration Ltée. It later adopted the Osisko Exploration name, derived from Osisko Lake and the wider Abitibi gold belt. For much of its early existence, the company acquired and evaluated mineral exploration rights, principally in Quebec. The strategy was based on identifying prospective properties, carrying out exploration and feasibility work, and advancing economically promising deposits rather than operating a large portfolio of producing mines. A decisive turning point came in 2004, when Osisko acquired an interest in the Canadian Malartic property. The site had previously been operated by Lac Minerals and later passed through Barrick Gold and McWatters Mining before Osisko acquired the property from McWatters' creditors following that company's bankruptcy. Exploration and feasibility results demonstrated the potential to redevelop the historic mining area. Osisko subsequently committed substantial capital and technical resources to building a large-scale operation, with commercial production beginning in May 2011. The Canadian Malartic mine is located in the Abitibi-Témiscamingue region of Quebec, approximately 550 kilometres northwest of Montreal. Its orebody extends for several kilometres along the Cadillac Fault and includes porphyry-style gold mineralization. The operation was designed around large-scale processing and became one of the most significant gold mines in Quebec. In 2012, the mine produced 388,478 troy ounces of gold, following its first full year of commercial production. The company also pursued nearby expansion opportunities, including the Southern Barnat area, while managing land acquisition, relocation and community relations in Malartic. Osisko's growth before 2014 also included acquisitions and exploration partnerships outside the flagship mine. It acquired Brett Resources and its Hammond Reef Gold Project in Ontario in 2010, completed the acquisition of Queenston Mining in 2012, and held interests or options in projects including Duparquet, Dunn, Mount Joy, Goldboro and Casault. These activities reflected an effort to build a broader Canadian gold-development portfolio around the cash-generating potential of Canadian Malartic. In 2014, Goldcorp launched a hostile takeover bid for Osisko Mining Corporation. Osisko accepted a competing proposal from Yamana Gold and Agnico Eagle Mines, which offered a higher-value alternative and reorganized the assets. The transaction created Osisko Gold Royalties as a separate company and placed the Canadian Malartic operating business into Canadian Malartic Corporation, jointly owned by Yamana Gold and Agnico Eagle. As a result, the Canadian Malartic name refers primarily to the operating-company structure created by that transaction rather than to the formerly listed Osisko parent. The company's principal business is gold extraction and mine operation in Quebec. Its identity is tied to a large, established mining asset, long-life resource development, production optimization and the management of environmental and community obligations. It is not primarily a consumer-facing brand; its relevance lies in mining operations, mineral resources, infrastructure and relationships with local stakeholders.
History
Canadian Malartic Corporation traces its origins to the incorporation of Ormico Exploration Ltée on February 18, 1982. The business later changed its name to Osisko Exploration Ltée and established its headquarters in Montreal. Its early model was that of a mineral exploration company: it acquired exploration rights, conducted fieldwork and drilling, and assessed whether properties could support economically viable mines. The company concentrated much of its activity in Quebec's Abitibi gold belt, one of Canada's most important mineral districts. The company's defining asset was the Canadian Malartic property near Malartic, Quebec. The property had a long mining history and had previously been operated by Lac Minerals. After Barrick Gold acquired Lac Minerals, the property was sold to McWatters Mining. Osisko ultimately obtained the property from McWatters' creditors after McWatters entered bankruptcy proceedings, acquiring an interest in the project in November 2004. Subsequent exploration, feasibility studies and economic assessments indicated that the historic mine area could support a very large open-pit operation. Osisko's development program transformed the company from a junior exploration business into a mine developer. Construction proceeded during the late 2000s, and the company worked to assemble land, secure project approvals and address the social effects of expanding the mine in the town of Malartic. Most homeowners in the Southern Barnat area agreed to sell their properties, while one remaining owner challenged the company's plans. In August 2010, the Quebec Superior Court ruled in Osisko's favour regarding the disputed property, allowing important preparation work to proceed. Production was initially scheduled for June 2011, and the mine achieved commercial production in May 2011. During the four weeks ending June 17, 2011, processing averaged approximately 33,300 tonnes per day. Community engagement became part of the project's operating model. In March 2008, Osisko established a CA$3 million economic-development fund for Malartic, supporting local projects, public facilities and infrastructure. It also helped create a follow-up committee intended to operate independently of the company and to provide a channel for community concerns, including environmental issues. The mine's scale made it one of Quebec's most important new mining developments and a major source of direct and indirect employment in the area. The Canadian Malartic operation quickly became the centre of Osisko's production profile. Gold output reached 388,478 troy ounces in 2012. Earlier quarterly results showed the ramp-up from construction and commissioning to commercial operation, with gold and silver produced as the mine increased throughput. Osisko also evaluated expansion areas around the mine, including the Southern Barnat sector, and maintained a large land position in the Malartic-Cadillac area. Before the 2014 restructuring, Osisko expanded beyond Quebec through acquisitions and exploration agreements. In 2010 it acquired Brett Resources, gaining the Hammond Reef Gold Project near Atikokan, Ontario. In December 2012 it completed the acquisition of Queenston Mining, adding the Upper Beaver project near Kirkland Lake. Other interests and options included the Duparquet project, Dunn, Mount Joy, Goldboro and Casault. These projects were intended to broaden Osisko's development pipeline, although not all advanced to production. Osisko also became the subject of corporate competition. Goldcorp accumulated a significant interest and later launched a hostile takeover bid. In 2014, Yamana Gold and Agnico Eagle presented an alternative transaction that Osisko accepted. The arrangement offered a higher-value alternative and reorganized the assets: Osisko Gold Royalties was spun out as a separate royalty and streaming company, while the Canadian Malartic operating business became Canadian Malartic Corporation, jointly owned by Yamana and Agnico Eagle. This transaction ended Osisko Mining Corporation's role as an independent listed mining company and established the corporate identity represented by Canadian Malartic Corporation. The company is therefore best understood as an operating mining subsidiary rather than a diversified public exploration issuer. Its principal activity is the operation and development of the Canadian Malartic gold mine in Quebec. Its history combines exploration-led project generation, large-scale mine construction, production ramp-up, community relocation and engagement, regional exploration, corporate acquisitions and a major takeover-driven reorganization.
- 2014
Canadian Malartic Corporation created through takeover restructuring
[1]Following competing bids for Osisko Mining, Yamana Gold and Agnico Eagle acquired the operating assets, created Osisko Gold Royalties and placed the mine business in Canadian Malartic Corporation.
- 2012
Queenston Mining acquisition completed
[1]Osisko completed its acquisition of Queenston Mining and gained the Upper Beaver project near Kirkland Lake, Ontario.
- 2011
Canadian Malartic enters commercial production
[1]The Canadian Malartic mine achieved commercial production in May 2011 after redevelopment and construction.
- 2010
Hammond Reef project added through Brett Resources acquisition
[1]Osisko acquired Brett Resources, adding the Hammond Reef Gold Project in Ontario to its development portfolio.
- 2008
Malartic economic-development fund established
[1]Osisko established a CA$3 million fund to support economic development, facilities and infrastructure in Malartic.
- 2004
Osisko acquires an interest in the Canadian Malartic property
[1]Osisko acquired an interest in the Canadian Malartic property, which became the foundation of its transformation into a producing gold company.
- 1982
Business incorporated as Ormico Exploration
[1]The company was incorporated on February 18, 1982, as Ormico Exploration Ltée, beginning its history as a mineral exploration business.
Products and positioning
Large-scale Canadian gold mining operator centered on the Canadian Malartic mine and its surrounding mineral district.
Gold mine · 2011
Canadian Malartic gold mine
The Canadian Malartic mine is the company's defining operating asset. It is located near Malartic in Quebec's Abitibi-Témiscamingue region, about 550 kilometres northwest of Montreal. The deposit follows the Cadillac Fault and includes porphyry-style gold mineralization. The large-scale operation was developed from a historic mining property and reached commercial production in 2011. Its development involved extensive land acquisition, community engagement and infrastructure work. The mine produced 388,478 troy ounces of gold in 2012.
Precious-metal by-product · 2011
Silver by-product
Silver is recovered as a by-product of the Canadian Malartic mining and processing operation. Production was reported alongside gold during the mine's early commercial-production period, although gold remained the company's principal product and strategic focus.
Brand decisions
2014
Accept the Yamana–Agnico Eagle transactionM&ABackground
Goldcorp launched a hostile takeover bid for Osisko Mining Corporation, prompting an alternative proposal from Yamana Gold and Agnico Eagle.
Action taken
Osisko accepted the competing transaction, which created Osisko Gold Royalties and reorganized the Canadian Malartic operating business as a subsidiary jointly owned by Yamana and Agnico Eagle.
Aftermath
Osisko Mining ceased to operate as an independent public company, while Canadian Malartic became the corporate vehicle for the mine operations.
- Goldcorp — Goldcorp pursued the original hostile takeover bid but did not prevail over the competing Yamana–Agnico Eagle proposal.
2004
Make Canadian Malartic the core development projectStrategyBackground
Exploration and feasibility work indicated that the Canadian Malartic property could support a large-scale gold mine.
Action taken
Osisko directed capital, exploration and development resources toward redeveloping the historic property and advancing it to production.
Aftermath
The project became the company's flagship asset and ultimately transformed Osisko from an exploration company into a major gold producer.
Sources1 sources
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