A World Trade Organization panel report on a U.S.-Canadian dispute over softwood lumber duties has given the U.S. its first-ever WTO win for a controversial Commerce Department antidumping methodology known as "zeroing," though it also said the U.S. violated WTO rules in making its determination. When calculating dumping margins for Canadian softwood lumber, Commerce threw out - or set to zero - negative dumping results, which is known as zeroing. In this case, the U.S. was using zeroing to determine whether Canadian producers had engaged in "targeted dumping," or when an exporter sells a product below market price in a limited way, like during a certain time frame, in a specific region or to one importer.
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