Kirkland Lake Gold
A Canadian gold-mining company that operated high-grade mines in Canada and Australia before merging with Agnico Eagle Mines.
Last updated August 22, 2026
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Overview
Kirkland Lake Gold was a Canadian gold-mining company headquartered in Toronto. Its business was built around the acquisition, redevelopment and operation of underground and open-pit gold assets, with a particular emphasis on high-grade production, exploration upside and operating efficiency. The company ultimately operated assets in Ontario, Canada, and Victoria and the Northern Territory in Australia. The business originated in 1988 as Goldpac Investments. After operating under the Brimstone Gold Corp. name from 1994 to 1999 as a consulting and investment company focused on the gold sector, it became Foxpoint Resources Ltd. The company then shifted toward direct ownership and development of mining properties. In 2001, Foxpoint acquired a group of properties around Kirkland Lake, Ontario, from Kinross Gold. The transaction included the Macassa, Lakeshore, Wright Hargreaves and Teck Hughes properties. Following the acquisition, the company adopted the Kirkland Lake Gold name and concentrated on restoring production at the underground Macassa Mine. Macassa became the foundation of the company’s identity and operating model. After exploration, rehabilitation and development work, the mine returned to production in 2003. The asset was known for high-grade ore and became central to Kirkland Lake Gold’s reputation as a focused precious-metals producer rather than a diversified mining conglomerate. The company’s Ontario portfolio was expanded in 2015 through the acquisition of St. Andrew Goldfields. That all-stock transaction added the Holt Complex, approximately 100 kilometres from Kirkland Lake, and broadened the company’s Canadian production base. Kirkland Lake Gold then pursued a more international growth strategy. In 2016, it acquired Newmarket Gold in an all-stock transaction valued at approximately C$1.01 billion. Newmarket brought the Fosterville and Stawell mines in Victoria, Australia, and the Cosmo mine in Australia’s Northern Territory. Fosterville became one of the group’s most important assets because of its high-grade production and exploration potential. The company’s shares began trading on the Australian Securities Exchange in 2017, adding an Australian capital-market presence to its Toronto listing. The company’s public-market profile strengthened further when its Toronto Stock Exchange shares entered the S&P/TSX 60 index in September 2019. Later that year, Kirkland Lake Gold agreed to acquire Detour Gold in a transaction valued at approximately C$4.9 billion. The deal added the large Detour Lake operation in northern Ontario and substantially increased the company’s production scale, although it also shifted the portfolio toward a more diversified mix of high-grade underground and large-scale open-pit operations. Kirkland Lake Gold ceased to exist as an independent public company after combining with Agnico Eagle Mines in an all-stock merger. The transaction was completed in 2022, after which Kirkland Lake Gold shares were delisted and its operations became part of Agnico Eagle. Its former principal assets, including Macassa, Detour Lake and Fosterville, continued within Agnico Eagle’s operating portfolio. The brand is therefore historically significant in the gold-mining sector but is no longer an active standalone company.
History
Kirkland Lake Gold’s corporate history began in 1988, when the business was established as Goldpac Investments. From 1994 through 1999 it operated as Brimstone Gold Corp., principally as a consulting and investment business serving the gold-mining sector. The company later adopted the Foxpoint Resources name as it moved toward acquiring and developing mining properties of its own. A decisive transformation occurred in 2001, when Foxpoint Resources purchased a collection of properties around Kirkland Lake, Ontario, from Kinross Gold. The approximately C$5 million transaction included the Macassa, Lakeshore, Wright Hargreaves and Teck Hughes properties. The company changed its name to Kirkland Lake Gold and began the redevelopment and re-commissioning of the underground Macassa Mine. Production from Macassa resumed in 2003, establishing the asset as the company’s core operation and giving the company a distinctive high-grade underground mining profile. For much of the following period, Kirkland Lake Gold concentrated on exploration and development at Macassa. Its growth accelerated in 2015, when it acquired St. Andrew Goldfields in an all-stock transaction valued at approximately C$178 million. The purchase added three mines grouped as the Holt Complex and expanded the company’s Ontario production and exploration platform. In 2016, activist shareholder pressure contributed to management changes and a more expansion-oriented strategy. Later that year, Kirkland Lake Gold acquired Newmarket Gold in an all-stock deal valued at approximately C$1.01 billion. The transaction added three Australian assets: Fosterville and Stawell in Victoria and Cosmo in the Northern Territory. Fosterville subsequently became one of the company’s best-known assets, while the acquisition transformed Kirkland Lake Gold from a primarily Ontario-focused producer into an international gold company. The company began trading on the Australian Securities Exchange in November 2017. In September 2019, its Toronto-listed shares entered the S&P/TSX 60 index. The same period brought another major expansion: Kirkland Lake Gold acquired Detour Gold in a transaction valued at approximately C$4.9 billion. Detour Lake added a large-scale open-pit operation in northern Ontario and materially increased the company’s production base. Kirkland Lake Gold’s independent corporate existence ended through its combination with Agnico Eagle Mines. The all-stock merger was completed in 2022, and Kirkland Lake Gold’s shares were delisted. Its former mines and development interests became part of Agnico Eagle’s broader portfolio. The company’s legacy rests on the revival of Macassa, the international expansion achieved through Newmarket Gold, the addition of Detour Lake and the creation of a substantial gold producer before its merger.
- 2022
Merged into Agnico Eagle Mines
[1]An all-stock merger ended Kirkland Lake Gold’s existence as an independent listed company.
- 2019
Entered the S&P/TSX 60
[1]The company was added to the S&P/TSX 60 index in September.
- 2019
Acquired Detour Gold
[1]The acquisition added Detour Lake and significantly expanded Kirkland Lake Gold’s production scale.
- 2017
Listed on the Australian Securities Exchange
[1]Kirkland Lake Gold’s shares began trading on the ASX on November 30.
- 2016
Acquired Newmarket Gold
[1]The transaction added Australian assets including Fosterville, Stawell and Cosmo.
- 2015
Acquired St. Andrew Goldfields
[1]The all-stock acquisition added the Holt Complex and strengthened the company’s Ontario asset base.
- 2003
Macassa returns to production
[1]After redevelopment and exploration work, the underground Macassa Mine resumed gold extraction.
- 2001
Acquired Kirkland Lake properties
[1]Foxpoint Resources bought several former Kinross properties near Kirkland Lake, Ontario, and subsequently adopted the Kirkland Lake Gold name.
- 1999
Adopted the Foxpoint Resources name
[1]The business changed its name as it pursued ownership and development of mining properties.
- 1994
Renamed Brimstone Gold Corp.
[1]The company began operating as Brimstone Gold Corp. and focused on consulting and investment activities in the gold industry.
Products and positioning
A focused, high-grade gold producer emphasizing operational discipline, exploration-led growth and a portfolio of underground and open-pit mines.
Underground gold mine · 2003
Macassa Mine
Macassa was the cornerstone of Kirkland Lake Gold’s original operating portfolio. Located near Kirkland Lake in Ontario, it was an underground mine with a long history of production and redevelopment. The company acquired the property in 2001, re-commissioned the operation and resumed extraction in 2003. Macassa’s high-grade ore profile supported Kirkland Lake Gold’s positioning as a focused and cost-conscious gold producer.
Underground gold mine
Fosterville Gold Mine
Fosterville is an underground gold operation in Victoria, Australia. Kirkland Lake Gold acquired the mine through its 2016 purchase of Newmarket Gold. The asset became one of the company’s most prominent operations and an important contributor to its international expansion, supported by high-grade production and exploration potential.
Open-pit gold mine · 2019
Detour Lake Mine
Detour Lake is a large-scale open-pit gold operation in northern Ontario. Kirkland Lake Gold added the mine through its 2019 acquisition of Detour Gold. The operation broadened the company’s portfolio beyond high-grade underground mines and materially increased its production scale before the merger with Agnico Eagle.
Gold-mining complex · 2015
Holt Complex
The Holt Complex, located in Ontario approximately 100 kilometres from Kirkland Lake, was added through the 2015 acquisition of St. Andrew Goldfields. It comprised three mines and provided Kirkland Lake Gold with a broader regional operating and exploration platform in the province.
Gold mine · 2016
Stawell Gold Mine
Stawell, in Victoria, Australia, became part of Kirkland Lake Gold through the Newmarket Gold acquisition. It complemented the company’s Australian portfolio alongside Fosterville and contributed to the geographic diversification of the business before the Agnico Eagle merger.
Gold mine · 2016
Cosmo Mine
Cosmo, located in Australia’s Northern Territory, was acquired with Newmarket Gold in 2016. The mine formed part of Kirkland Lake Gold’s Australian asset base, although the company’s best-known Australian operation was Fosterville.
Brand decisions
2022
Merged with Agnico Eagle MinesM&ABackground
Kirkland Lake Gold had developed a substantial portfolio of Canadian and Australian gold assets but remained an independent public company.
Action taken
It combined with Agnico Eagle Mines in an all-stock merger.
Aftermath
Kirkland Lake Gold shares were delisted and its operations became part of Agnico Eagle Mines.
2019
Acquired Detour GoldM&ABackground
Kirkland Lake Gold pursued a major increase in production scale and portfolio breadth.
Action taken
The company acquired Detour Gold and its Detour Lake operation in northern Ontario.
Aftermath
The deal added a large open-pit mine and changed the balance between the company’s high-grade underground assets and large-scale production assets.
Transaction value. Approximately C$4.9 billion (2019)
2016
Entered Australia through the Newmarket Gold acquisitionM&ABackground
Shareholder pressure and management changes preceded a more aggressive expansion strategy.
Action taken
Kirkland Lake Gold acquired Newmarket Gold in an all-stock transaction, obtaining Fosterville, Stawell and Cosmo.
Aftermath
The company became an international gold producer with significant Australian operations.
Transaction value. Approximately C$1.01 billion (2016)
2015
Expanded the Ontario portfolio through St. Andrew GoldfieldsM&ABackground
Kirkland Lake Gold was seeking to expand beyond its Macassa-centered operating base.
Action taken
The company completed an all-stock acquisition of St. Andrew Goldfields and added the Holt Complex.
Aftermath
The transaction increased the company’s Ontario production and exploration footprint.
Transaction value. Approximately C$178 million (2015)
2001
Shifted from investment activity to direct mine ownershipStrategyBackground
After operating under several corporate names, the company sought to acquire and develop its own mining properties.
Action taken
It purchased properties around Kirkland Lake from Kinross Gold, renamed itself Kirkland Lake Gold and focused on restarting Macassa.
Aftermath
Macassa resumed production in 2003 and became the company’s foundational asset.
Recent events
Kirkland Lake Gold announces sale of Novo shares and warrants[3]
Reported:
Kirkland Lake Gold announced an agreement to arrange the sale of 18.5 million units, each consisting of one Novo share and one-half of a warrant, for gross proceeds of $45,325,000. The release describes sales in Canada and the United States.
Kirkland Lake Gold reports 2019 results[4]
Reported:
Kirkland Lake Gold announced its fourth-quarter and full-year 2019 financial and operating results, reporting record production, unit costs and adjusted net earnings for both periods.
Kirkland Lake Gold agrees to acquire Detour Gold[5]
Reported:
Kirkland Lake Gold and Detour Gold entered into a definitive agreement under which Kirkland Lake Gold would acquire all issued and outstanding Detour Gold securities through a plan of arrangement.
Sources7 sources
- 1Kirkland Lake Golden.wikipedia.org
- 2Kirkland Lake Gold corporate websiteklgold.com
- 3Kirkland Lake Gold 宣布出售 Novo 股份及认股权证finance.yahoo.com
- 4Kirkland Lake Gold公布2019年业绩northernnews.ca
- 5Kirkland Lake Gold 达成收购 Detour Gold 的协议northernnews.ca
- 6Kirkland Lake Gold Reports Record Net Earnings in Q2 2021finance.yahoo.com
- 7Kirkland Lake Gold Reports Record Net Earnings in Q3 2021finance.yahoo.com
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