The U.S. Department of Commerce has applied the 2015 Trade Preferences Extension Act for the first time. It will impose higher duties on South Korean exports of oil country tubular steel goods to include subsidized raw materials as well as the pipes themselves. While the original 2014 case led to an 89% drop in imports by September 2016 from their January 2015 peak, they jumped 208% by February 2017 from the trough due to a 530% surge in South Korean shipments. This may be the first sign of the more aggressive stance in trade cases promised by Commerce Secretary Wilbur Ross being applied...