Cuprum Metals

About Cuprum Metals

Cuprum Metals Inc. is a natural resources technology company that provides solutions for copper and nickel extraction. It was founded in 2023 and is headquartered in Boulder City, Nevada, in the United States. The company was established by a team of chemical professionals, including Founder, Chairman, and CEO Roger Pettman, PhD, DSc, who approached the challenge from a chemistry and chemical engineering perspective. Dr. Pettman has a background in industrial chemistry, including over 30 years with DuPont and co-founding the company Revolymer. In February 2025, Cuprum Metals raised $2.75 million in a seed funding round. This was followed by a significant Series A funding round of $19.4 million on June 18, 2026, led by the Lundin Family Office with support from Woodline Partners and BHP Ventures. The company's core offering is a patented, water-based chemical leaching technology designed for more efficient, cost-effective, and sustainable copper extraction. This technology is engineered to circumvent the passivation layer effect, which typically slows down extraction, enabling the direct and rapid oxidation of copper. A key feature is its speed, with the capability to achieve over 92% copper recovery in just 30 minutes at room temperature, a process that can take days with traditional methods. The technology is also designed for sustainability, operating without toxic chemicals, using less water and energy, and producing toxin-free residual matter that can be repurposed. It is adaptable to various ore types, including primary, secondary, and oxide ores, and can be integrated into existing heap leaching and vat leach systems with minimal adjustments. The process has also proven effective with chalcopyrite, a mineral that has historically been difficult to leach. Cuprum Metals targets major mining companies, offering them a scalable method to unlock previously untapped copper resources and process tailings.