The US Court of International Trade upheld the Commerce Department’s recalculation of antidumping duties on Canadian softwood lumber exporters, ruling that the agency reasonably applied its revised differential pricing methodology. The court sustained Commerce’s new three-step analysis—including a 2% “price difference test” to determine whether prices differ significantly among purchasers, regions or time periods—and upheld the agency’s decision to replace its previous “mixed method” with a single comparison methodology. The court found Commerce’s revised approach complied with earlier appellate court guidance and rejected challenges to the methodology, sustaining the remand redetermination.