The Commerce Department's recent move to block U.S. companies from exporting some technologies to a Chinese semiconductor manufacturer came under fire from China this week during a meeting at the World Trade Organization. Last month, Commerce added Fujian Jinhua Integrated Circuit Co. to a list of entities U.S. companies are prohibited from supplying with technology products. In turn, the company will be prohibited from buying software components from U.S. companies. China, however, said the action violates WTO rules and runs...