Cuprum Metals' $19.4M Bet to Solve Copper's Toughest Chemical Puzzle

WINTER PARK, Fla. – June 18, 2026 – In a move signaling significant confidence in a novel extraction technology, Cuprum Metals Inc. today announced the closing of a US$19.4 million Series A funding round. The investment, led by the influential Lundin Family Office and backed by mining giant BHP's venture arm and Woodline Partners, provides the Florida-based company with the capital to scale a process that could fundamentally alter the economics of copper production.

This funding isn't just another line item on a venture capital ledger; it's a strategic endorsement of a technology that promises to unlock vast quantities of copper from ores and waste previously deemed too difficult or costly to process. For an industry grappling with declining ore grades and a looming supply deficit driven by global electrification, Cuprum Metals' journey from prototype to commercialization represents a critical test case for innovation.

A Chemical Solution to a Metallurgical Problem

For decades, hydrometallurgists have pursued the “holy grail” of their field: an efficient way to leach copper from chalcopyrite. As the world's most abundant copper-bearing mineral, it holds the key to future supply, yet it is notoriously stubborn. Traditional leaching methods are often stymied by a phenomenon called passivation, where a surface layer forms on the mineral, effectively halting the chemical reaction and trapping the valuable copper within. This has left miners with a choice between energy-intensive smelting or slow, low-yield heap leaching processes that can take years to recover a mere fraction of the available metal.

Cuprum Metals, founded in 2024 by a team of chemical engineers, approached this metallurgical challenge from a different angle. Instead of tweaking existing mining techniques, they applied principles from industrial chemical manufacturing to develop a patented, water-based “chemical tool kit.” This innovative lixiviant system operates at ambient temperature and atmospheric pressure, circumventing the passivation problem to achieve remarkable results. Pilot campaigns have demonstrated copper recoveries exceeding 75% from predominantly chalcopyrite ore in just 100 days—a dramatic improvement over conventional methods. Some agitation tests have shown even more startling figures, with recoveries as high as 93% in 30 minutes.

“With support from our investors, we are now focused on scaling the technology and expanding its application across a broader set of copper assets,” stated Roger Pettman, PhD, DSc, the company’s Founder, Chairman, and CEO. The process not only works faster but also smarter. It can use seawater, a crucial advantage in arid mining regions, and consumes less acid when processing oxide ores, reducing both operational costs and environmental liabilities.

Unlocking Value from Ore and Waste

The timing for such a breakthrough could not be more critical. The global transition to electric vehicles, renewable energy infrastructure, and upgraded power grids is projected to create a significant copper supply gap within the next decade. Cuprum Metals' technology addresses this challenge on two fronts: by making low-grade primary ores economically viable and by turning mining's biggest liability—tailings—into a valuable asset.

The firm's process has proven effective on a wide variety of feedstocks, a flexibility that has captured investor attention. “Woodline is pleased to support Cuprum in advancing what we believe to be one of the most flexible solutions to the copper industry’s supply gap,” said Andrew Pizzi, Portfolio Manager at Woodline Partners. “From sulfide ores to smelter slags and tailings, we have been impressed by Cuprum’s ability to rapidly recover copper from a diverse range of feedstocks without the use of heat or biological processes.”

This ability to re-mine tailings is particularly transformative. Vast tailings dams across the globe contain residual copper that was unrecoverable with older technologies. These sites often pose environmental risks, such as acid mine drainage. The technology developer offers a pathway to not only extract this residual value but also remediate the sites, as the post-process material is claimed to be toxin-free. Successful pilot tests at mines in the US, Chile, Australia, and South Africa underscore the global applicability and potential of this waste-to-value proposition.

The Strategic Capital Fueling Commercialization

The composition of the Series A syndicate is as telling as the amount raised. The involvement of the Lundin Family Office, a name synonymous with successful mining ventures, provides deep industry validation. “As demand for copper continues to grow, technologies that can unlock greater value from existing resources and improve operating efficiency will play an increasingly important role,” the Lundin Family Office noted in a statement.

Equally significant is the participation of BHP Ventures. As the venture capital arm of one of the world's largest mining companies, its investment is a clear strategic play. BHP is actively seeking solutions to enhance the productivity and sustainability of its own massive operations. “Cuprum Metals’ approach to chemical leaching has the potential to expand recovery pathways and support more flexible development options across different ore bodies,” said Laurel Buckner, Vice President at BHP Ventures. This investment follows a pattern for BHP, which has backed other innovative extraction startups, indicating a focused search for breakthrough technologies.

The capital infusion will now fuel the most critical phase of the company’s journey: scaling up. The funds are earmarked for continued commercial deployment, expanding technical teams with key hires, and growing the customer base among mine operators who stand to benefit from a more efficient and sustainable extraction method.

The Road from Pilot to Production

Despite the promising technology and strong financial backing, the path from a successful pilot to full-scale industrial production is fraught with challenges. The mining industry is notoriously risk-averse, and scaling complex chemical processes in the harsh, variable environment of a mine site requires immense engineering prowess and operational discipline. Proving the technology's robustness and consistent economic advantage at scale will be the ultimate test.

However, Cuprum Metals has a key advantage baked into its commercialization strategy. The company asserts that its process can be integrated into existing heap leach operations with minimal capital expenditure, primarily requiring a tank to prepare the proprietary lixiviant. This drastically lowers the barrier to adoption for mine operators, who can potentially boost their recovery rates and extend the life of their assets without a complete overhaul of their infrastructure. This practical, plug-and-play approach, born from the founders' chemical engineering perspective, may prove to be just as important as the underlying chemistry itself in navigating the difficult road from prototype to profit.