Tesla and SpaceX CEO Elon Musk says he hopes #China and the #US can work together for regional prosperity. "We are happy with our progress in China. It's going very well," Musk told Xinhua's @miaoxiaojuan on his arrival for a welcome dinner for Chinese President Xi Jinping organized by friendly organizations in the United States. "We met once briefly, I look forward to meeting him (Xi) again."