The U.S. Trade Representative received 828 further requests for exemption from section 301 duties on Chinese exports in the week to Nov. 15 from a week earlier, bringing the total to 11,221 requests in total. So far none have been approved, 3.3% are in the second-to-last stage before approval and 9.7% have been formally denied. Among the new exemption filings are system-on-a-chip microprocessors produced by NXP and Octavo. Evidence of stockpiling of the highly specialized systems can be seen with a 127% surge in U.S. imports of specialized semiconductors on a year earlier in the three...