BEIJING » China says its president’s recently concluded state visit to the United States was "fruitful" but the two countries need to work on trust so that sensitive issues do not create misgivings.

Foreign Minister Yang Jiechi said in comments published in Sunday’s People’s Daily newspaper that the visit by President Hu Jintao came at a time when the world is undergoing "profound and complicated changes."

Yang said that despite their social, cultural and historical differences, China and the U.S. have a common responsibility in promoting growth and development in the world. He said economic cooperation between the two countries would send "a powerful and positive signal to the global market."