Japan’s Sojitz is set to divest its 12.5% stake in Gibraltar Mine in south-central British Columbia, Canada, to majority owner and operator Taseko Mines, reported Mining.com.

Taseko currently owns a 75% stake in the Gibraltar copper-molybdenum mine, which is claimed to be the country’s second-largest open-pit copper mine.

Discover B2B Marketing That Performs

Combine business intelligence and editorial excellence to reach engaged professionals across 36 leading media platforms.

Find out more

The mine has an average annual production of 135Mlb of copper and 2.5Mlb of molybdenum (100% basis). It is expected to have operational life until 2038.

This divestment by the trading house comes due to unstable operations, rising risks of environmental liabilities, and deteriorating grades.

The deal is expected to close by the end of next month.

Japanese firms Furukawa and Dowa Holdings each hold a 6.25% interest in the Gibraltar mine.

GlobalData Strategic Intelligence

US Tariffs are shifting - will you react or anticipate?

Don’t let policy changes catch you off guard. Stay proactive with real-time data and expert analysis.

By GlobalData

Last December, production from the mine was impacted by unplanned mill downtime, including a power outage late in the month.

Last month, Taseko president and CEO Stuart McDonald said: “Mill throughput in October and November averaged above design capacity, but production in December was impacted by unplanned mill downtime, including a sitewide power outage late in the month.

“Mining operations have advanced deeper into the Gibraltar pit and were largely unaffected by this recent severe winter weather and power outage.”

Separately, Taseko plans to start construction on its Florence Copper Project in Arizona this year. The project is expected to nearly double the firm’s annual copper production capacity.

Taseko also owns advanced staged projects, including Yellowhead Copper Project, New Prosperity Gold-Copper Project and Aley Niobium Project.

Mining Technology Excellence Awards - Nominations Closed

Nominations are now closed for the Mining Technology Excellence Awards. A big thanks to all the organisations that entered – your response has been outstanding, showcasing exceptional innovation, leadership, and impact

Excellence in Action
Awarded the 2025 Mining Technology Excellence Innovation Award for Equipment Diagnostics, Razor Labs’ DataMind AI™ platform turns sensor data and imagery into actionable maintenance insights, avoiding hundreds of thousands of dollars in downtime. Find out how leading mines are using DataMind AI™ to keep critical assets running.

Discover the Impact