The U.S. Commerce Department has determined that exports of mattresses from China have been dumped at margins of up to 1,732%. The case has been largely successful in squeezing Chinese imports out of the market – imports from China fell 94.7% year over year in the three months to Aug. 31. Yet, total imports only fell 22.5% as shippers including Glory Home Furnishing switched production to Vietnam or Malaysia. The latter two countries accounted for 39.3% of U.S. imports in the three months to Aug. 31 from 1.6% a year earlier. Mexican exporters have also lost out to renewed compet...