Vice President Xi Jinping and his U.S. counterpart Joe Biden on Friday attended a U.S.- China business dialogue aiming to enhance bilateral trade and economic ties.

Vice President Xi Jinping (R) and his U.S. counterpart Joe Biden (L) on Friday attended a U.S.- China business dialogue aiming to enhance bilateral trade and economic ties.

Senior executives from prestigious enterprises and institutions such as China Ocean Shipping (Group) Company, Bank of China, Lenovo, General Motors, J.P. Morgan, and the American Chamber of Commerce in China attended the dialogue.

Wan Jifei, chairman of China Council for the Promotion of International Trade, hosted the dialogue.

Biden's six-day official visit to China, which began Wednesday, comes on the heels of an unprecedented U.S. credit rating downgrade earlier in August, which created global uncertainty about the safety of dollar assets.

At the end of June, China remained the largest foreign holder of U.S. debt with around 1.165 trillion U.S. dollars in U.S. Treasury securities.