Interfor, which has sawmills in Castlegar and Grand Forks, says it suffered a net loss of $216 million in the third quarter of 2025.
That’s compared to a net loss of $105 million in the same three months of last year.
The Grand Forks operation has been idled since September, a shutdown that has since been extended indefinitely. The closure was part of company-wide plans to cut lumber production by 26 per cent. However, the Castlegar mill continues to operate.
Interfor blames “persistently weak market conditions” and “ongoing economic uncertainty,” due in large part to U.S. softwood duties and tariffs.
The company said as of Sept. 30 it had paid cumulative duties of $639.8 million US. It predicts North American lumber markets will remain volatile.
Interfor said about 60 per cent of its total lumber is produced and sold within the US, while about 25 per cent is exported from Canada to the U.S. and subject to duties and tariffs.
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