The petition by Alta Forest Products, Sierra Pacific Industries and Mendocino Forest Products alleges dumping margins of up to 296%.
Tariffs and Duties
The door and window maker expects 2026 adjusted EBITDA of $120 million to $150 million as cost cuts offset weaker volumes, and will keep its European business after a strategic review.
A U.S. tariff on Canadian paperboard idled the Temiscaming site in October, and the company pushed the conclusion of its strategic review to the first quarter of 2027.
The cut applies only to the rates from the 2017 investigation that started the duties. The largest producers already pay rates set in annual reviews, so their payments do not change, while exporters never reviewed will pay 12.80% instead of 14.19%.
The Finnish maker of plywood and LVL mill equipment, whose third-quarter sales fell 34%, lowered the top of its 2026 forecast for the second time this year.
The curtailments will cut annual capacity by 500 million square feet of OSB and 225 million board feet of southern yellow pine lumber.
Most of the funding is a repayable contribution under Canada's Regional Tariff Response Initiative.
Record group sales lifted results, while inflation, tariffs and Mineral Fiber mix pressured margins; Armstrong expects 2026 adjusted EBITDA of $602 million to $612 million.
Smurfit Westrock and Pratt Industries allege dumping margins of up to 297% on Chinese boxes; Turkey also faces a subsidy investigation.
The changes take effect October 30; new 50% duties also cover hardboard, wood moldings, wooden boxes and kraft paper.
An $829 million goodwill impairment led to a GAAP net loss of $732 million; the company expects continued strong Industrial results and more stable Consumer results in the fourth quarter.
Imports from South Korea fell to 3,258 metric tons in the year to June 2025, or 2.5% of EU consumption.
The antidumping part is 6.40% after an offset for export subsidies, and the countervailing, or subsidy, part is 9.37%, up from 3.67% at the preliminary stage.
Commerce will instruct U.S. Customs and Border Protection to continue suspending liquidation of entries made on or after May 27, 2026, and to collect cash deposits at the final rate.
The preliminary administrative review covers one company and rescinds proceedings for four others, with final cash deposit requirements still pending.
New pricing takes effect for all orders and deliveries from November 1, 2026.
Commerce must exclude Jiangyang Wood and Dehua TB from the hardwood plywood antidumping order and cannot reopen the record to calculate new rates.
The Chinese list covers hardwood and softwood lumber, logs, OSB, fiberboard, plywood and flooring, while tariff reductions still require domestic procedures.
U.S. hardwood log exports to China reached 380.6 thousand m3 worth $285 million in January-August 2026, exceeding full-year 2025 shipments.
Dealers report higher supplier prices, reduced Canadian shipments and longer lead times after the duties took effect.