The U.S. and China on Monday sparred at the World Trade Organization over questions about Beijing’s compliance with a ruling faulting its tariff-rate quota administration for certain agricultural products, with Washington blocking China’s first attempt to establish a compliance panel as the U.S. seeks to move ahead with retaliation. The U.S. earlier this month asked the WTO to authorize suspending concessions against China in retaliation for its failure to comply with a 2019 ruling that found Beijing was improperly allocating...