From left: US Ambassador to China Max Baucus; Chinese Ambassador to the US Cui Tiankai; US Secretary of Commerce Penny Pritzker; Chinese Vice-Premier Wang Yang; US Trade Representative Michael Froman; and US Secretary of Agriculture Tom Vilsack pose for a photo on Wednesday morning at the Andrew W. Mellon Auditorium in Washington before the official start of the 27th China-US Joint Commission on Commerce and Trade (JCCT). Chen Weihua/China Daily