Just as economic talks have started between the US and China, trade tensions have been increased as the U.S. increased import duties on wind towers produced by Chengxi Shipyard Co. and CS Wind Corp.

The rates were higher than preliminary tariffs announced earlier this year to counter government subsidies.

The anti-dumping duties of 47.59 percent on wind-towers from Chengxi Shipyard and 44.99 percent for Titan Wind Energy Suzhou Co., both based in China. The rate for Titan Wind was more than double its preliminary rate of 20.85 percent, announced in July.