Chinese and South Korean leaders seek to improve ties but Thaad remains thorny issue

South Korean President Moon Jae In (left) and Chinese President Xi Jinping at the end of a signing ceremony at the Great Hall of the People inBeijing on Dec 14, 2017.
South Korean President Moon Jae In (left) and Chinese President Xi Jinping at the end of a signing ceremony at the Great Hall of the People inBeijing on Dec 14, 2017. PHOTO: AFP