South32 Hermosa Project

South32 Hermosa Project is an advanced mining initiative of South32, a global metals and mining company headquartered in Perth, Australia. Acquired in August 2018 and located in the Patagonia Mountains of Southern Arizona, the project is uniquely positioned as the only advanced mining venture in the United States capable of producing two federally designated critical minerals—manganese and zinc—alongside silver and lead.

Set within a 45,000-acre critical minerals district, Hermosa offers significant potential to strengthen the domestic supply chain, support the nation’s energy future, and stimulate local economic growth. By deploying next-generation mining technology and embracing sustainable practices, South32 Hermosa Project is committed to making a lasting, positive impact on the community, state, and the broader energy landscape.