Greenstone completes C$137 million public secondary offering of equity interests in Marimaca Copper

On February 26, 2026, funds advised by Greenstone Resources LP completed a divestment of equity investments in Marimaca Copper Corp., an ASX and TSX listed company developing the Marimaca copper project in Chile, through a brokered public secondary offering of shares and CHESS depositary interests (CDIs) of Marimaca pursuant to a prospectus supplement in Canada and a block trade agreement in Australia for aggregate gross proceeds to the Greenstone entities of approximately C$137 million, which formed part of a wider secondary offering of approximately C$270 million. The secondary offering was a component of a larger global treasury and secondary offering of shares and CDIs of Marimaca in Canada and Australia for global proceeds of approximately C$409 million.

Beacon Securities Limited and BMO Capital Markets, together with Euroz Hartleys Limited and Canaccord Genuity (Australia) Limited, acted as co-lead agents and joint bookrunners for the Global Offering, with the Canadian syndicate of agents also including National Bank Financial Inc., ATB Capital Markets Inc., Paradigm Capital Inc. and Raymond James Ltd.

Fasken advised the Greenstone entities in the secondary offering with a team led by Jodi Katz and Nancy Eastman (Corporate Finance and Securities, Mining), and which included Myroslav Chwaluk (Corporate Finance and Securities, Mining).