(Reuters) -South Korea has elected liberal Lee Jae-myung as president to lead the country through a tumultuous period that will require negotiating trade tariffs with the U.S. and mending the scars from his ousted predecessor's shock martial law declaration.

SINGAPORE: Singapore Prime Minister Lawrence Wong and President Tharman Shanmugaratnam have written to new South Korean President Lee Jae-myung to congratulate him on his el