DP-Master wins US plea on pipe exports

DP-Master Manufacturing Co Ltd, China's leading oil and gas drilling pipe manufacturer, has won an appeal against a United States ruling imposing anti-dumping and countervailing duties on imported piping equipment from China.

The United States International Trade Commission ruled in 2011 that imports of such items from China were hurting domestic suppliers.

As a result of that ruling, the US Department of Commerce issued anti-dumping and countervailing duty orders on Chinese producers and exporters.