ReElement, Mitsubishi Materials Partner to Strengthen U.S. and Allied Critical Mineral Supply Chains

U.S.-based ReElement Technologies Corporation has entered into a strategic collaboration with Mitsubishi Materials Corporation, including an investment by the Japanese group, to advance critical mineral refining capacity across the United States and allied markets. The agreement, announced by parent-affiliated American Resources Corporation, reflects growing efforts to secure supply chains for rare earth elements (REEs) and other strategic materials.

The partnership is expected to support the expansion of ReElement’s refining operations in the United States through feedstock sourcing, tolling arrangements, and potential offtake agreements. While financial details of the investment were not disclosed, the collaboration is positioned to accelerate the development of scalable refining capacity, an area widely viewed as a bottleneck in global critical mineral supply chains.

In parallel, the companies plan to explore opportunities in Japan to commercialize recycling solutions for rare earths and other critical minerals. This would combine Mitsubishi Materials’ existing recycling infrastructure with ReElement’s refining technology, potentially enabling localized processing and circular supply chains in both regions.

According to reports, ReElement’s platform is based on a chromatography-based separation and purification process, designed to extract and refine critical minerals from a range of feedstocks, including recycled materials, mine waste, and primary ores. Unlike conventional solvent-based refining, the technology is intended to be modular and scalable, with lower chemical use and reduced environmental impact. The approach is aimed at improving the economic viability of refining operations outside traditional hubs.

The collaboration comes amid increasing geopolitical and industrial focus on securing critical mineral supplies, particularly as demand rises for applications in electric vehicles, renewable energy systems, and defense technologies. The midstream refining segment, where raw materials are processed into usable forms, has emerged as a key constraint, with much of the global capacity concentrated in a limited number of countries.

Strategically, the partnership aligns with broader efforts by the United States and its allies to build more resilient and diversified supply chains. By combining Mitsubishi Materials’ expertise in sourcing and recycling with ReElement’s refining capabilities, the companies aim to create integrated solutions that can support domestic manufacturing and reduce reliance on external suppliers.

The initiative also reflects a growing role for recycling and secondary feedstocks in meeting future demand for critical minerals. Developing technologies capable of processing both primary and recycled inputs is increasingly seen as essential to addressing supply gaps while supporting sustainability objectives.

As governments and industry continue to prioritize resource security, collaborations between technology providers and established materials companies are expected to play a central role in scaling refining capacity and enabling more localized, circular supply chains.

Source: ReElement Technologies

SUNSHINE Spotlight: The ReElement–Mitsubishi Materials partnership highlights the strategic push to expand refining capacity and build more resilient, circular critical mineral supply chains across allied economies.