Weyerhaeuser Company and Aymium have signed a memorandum of understanding (MOU) to jointly produce and market 1.5 million tons of sustainable biocarbon each year, advancing their shared commitment to accelerate the Biocarbon Scale for metals manufacturing. As the first step in this collaboration, the companies have established a joint venture — TerraForge Biocarbon Solutions — to develop a facility next to Weyerhaeuser’s lumber mill in McComb, Mississippi. The new plant will convert wood fiber into biocarbon through an advanced, combustion-free, low-emissions process, supporting both companies’ sustainability and growth objectives.
Under the terms of the MOU, Weyerhaeuser and Aymium will pursue long-term biocarbon sales agreements and identify sites for multiple new production facilities across Weyerhaeuser’s operational footprint over the next five years. The partnership combines Weyerhaeuser’s extensive timberland and manufacturing assets with Aymium’s proven technology and global experience in producing and supplying biocarbon. Once fully scaled, this network of facilities could convert more than 7 million tons of wood fiber, sourced exclusively from Weyerhaeuser into 1.5 million tons of metallurgical-grade biocarbon each year, marking a major milestone in Biocarbon Scale and serving as a renewable, drop-in replacement for coal in the production of iron, steel, silicon, ferro-alloys, and other metals. This initiative positions both companies as leaders in Biocarbon Scale and sustainable industrial transformation.
Aymium has generated a significant global sales pipeline based on years of trials with leading global metals producers. The company’s patented products are engineered to immediately replace coal and coke without the need for capital investment or process modification, and with superior carbon levels, energy value, handling and environmental attributes to coal.
Weyerhaeuser sustainably manages more than 10 million acres of high-quality timberlands across the United States as well as 33 manufacturing facilities across North America — offering unmatched scale and reliable access to fiber.
“This partnership combines our renewable fiber resources and supply chain expertise with Aymium’s innovative technology and experience,” says Devin W. Stockfish, president and chief executive officer of Weyerhaeuser. “It represents a major step forward in growing the scale and impact of our Climate Solutions business, and it’s also a key part of our broader accelerated growth strategy through 2030. When the McComb facility comes online in 2027, it’s going to generate new demand for fiber in the region — supporting our McComb operations and local Timberlands teams — while creating more great jobs in the community. It’s a model we look forward to replicating across our footprint.”
“The reliability, scale of sustainable supply and forestland expertise of Weyerhaeuser provide unmatched sourcing security of our main raw material to support expansion,” says James Mennell, CEO of Aymium. “Through this partnership, we will significantly grow our manufacturing capacity to produce biocarbon as an immediately scalable, renewable replacement for coal and coke, while delivering differentiated value for our customers.”
