[6] Rubicon also owned a one-third stake in the private company Africo Resources which was conducting mineral exploration in the Kalukundi copper-cobalt deposit in Katanga Province, Democratic Republic of the Congo.

[8][9] Canadian businessman and former CEO of Goldcorp Rob McEwen became a significant investor and strategic advisor to the company beginning in 2006 and controlled over 30% of shares.

[10][11] Rubicon's Ontario property, called the Phoenix gold project, in the Red Lake area became the company's primary focus.

[14] The project proceeded with the company raising $700 million from investors, including the CPP Investment Board and Agnico Eagle Mines, and its stock peaking at $6 per share.

[18] In May 2021 Australian Securities Exchange-listed Evolution Mining completed the acquisition of Battle North Gold for CAD$343 million.