Donald Trump has ordered a probe into dumping in the US lumber market, setting the stage for the industry to join the widening basket of commodities targeted by Washington’s global trade war. The president directed the Department of Commerce to investigate whether imports of lumber and wood products were undermining domestic loggers in a way that posed a risk to US national security, days after ordering a similar review of the copper industry. …Forestry is big business for Canada. In 2022, the sector contributed C$33.4bn to real GDP, or about 1.2%. In the same year Canada’s forest product exports were valued at C$45.6bn, with the majority destined for the US. …Derek Nighbor, FPAC president, said any increase in tariffs on lumber would hurt forest sector employees on both sides of the border. …But Andrew Miller, chair of the US Lumber Coalition, said: “Canada’s unfair trade comes at the direct expense of US companies and workers.”