Weyerhaeuser, America’s largest private landowner, said it has launched a venture to turn runty trees and sawdust from its fleet of mills into a replacement for metallurgical coal used in steel making. The forest-products company said it expects production to begin in 2027 at a facility being built next to its sawmill in McComb, Mississippi—the first of several biocarbon plants planned by Weyerhaeuser and partner Aymium. It is the latest effort to find a market for the trees too small or otherwise unsuitable for making lumber. Such wood has typically been sent to pulp and paper mills, but U.S. wood-pulp consumption capacity has plunged due to waning paper demand. …Stockfish said he envisions the venture with Aymium operating as many as 10 or 11 biocarbon production facilities across Weyerhaeuser’s U.S. properties. …Aymium CEO James Mennell said the company’s process works with all species of wood as well as agricultural residues. [to access the full story a WSJ subscription is required]