The U.S. government has issued a new round of exemptions from tariffs on Chinese imports. The products covered are part of the “list 4A” group of section 301 duties applied since Sept. 2019. There were just 86 approvals out of 4,557 decisions made, or a 1.9% rate, bringing the total for list 4A so far to a 4.6% rate. Those exemptions will nonetheless prove important if the trade war is rekindled and the tariff rate increased above its current 7.5% rate. The latest round of positive decisions includes an eclectic group of products including shower heads, an Ai Weiwei sculpture and bicycle...