Washington says the duties caused a $250 million annual drop in exports.
The ruling concerns grain oriented flat-rolled electrical steel that is used primarily by the power generating industry. The WTO ruled in November 2012 that China had unfairly imposed antidumping and countervailing duties.
China has reduced its duties, but the U.S. contends that step was insufficient.
The U.S. says it’s the first time it is challenging Beijing’s compliance with a WTO ruling.
The U.S. sought consultations Monday with China within 15 days. If it is not satisfied by China’s response, it can refer the case back to the WTO and potentially seek redress.
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