BHP has submitted an application to reopen its Cerro Colorado copper mine in Chile, proposing a shift to recycled water operations to secure environmental approval.

The move marks a significant step in the miner's strategy to bring the idled asset back online, leveraging a $1.5 billion capital investment plan previously outlined for the site's extension.

The filing targets a 20-year operational extension, addressing long-standing water scarcity concerns that have hampered mining projects in the Atacama region.

By prioritizing recycled water, BHP aims to mitigate regulatory hurdles and community opposition, which have historically delayed expansions in Chile's copper belt.

This approach aligns with broader industry trends toward sustainable water management as a prerequisite for new capacity.

Copper markets are closely watching developments at major mines like Cerro Colorado, as supply constraints continue to underpin prices.

The potential restart adds to the narrative of major producers seeking to unlock dormant reserves to meet growing demand from the energy transition.