China's Vice Premier Liu He will visit Washington D.C. next week to sign phase-one of the trade deal with the U.S., the Ministry of Commerce said.

China's trade delegation, led by Mr. Liu will visit the U.S. from Jan. 13 to 15, Gao Feng, a spokesman of the commerce ministry said in a weekly briefing on Thursday.

The working teams of the two sides have kept close communication over the signing of the initial trade deal, Mr. Gao said without providing further details.

China will improve tariff policy on wheat, corn and other farm products based on rules of the World Trade Organization, which will not go against Beijing's plan to increase imports of agricultural products from the U.S., he said.