From Reuters, via Los Angeles Times:

Trade tensions flared between the U.S. and China on Friday, as each brought disputes against the other at the World Trade Organization.

China requested consultations with the U.S. — the first stage in launching a WTO dispute — over Washington’s anti-dumping measures on paper imports from China, the WTO said.

It is only China’s second trade dispute against Washington, and the first it has brought alone, after a case in 2002 in which it joined the European Union and other countries to challenge U.S. steel import restrictions. [Full Text]

Read also US Taken To WTO Over Paper Dispute by Jiang Wei from China Daily.