South Korean President Lee Jae Myung will visit China on the invitation of counterpart Xi Jinping from Sunday to Wednesday, Seoul and Beijing said.Lee and Xi last met in November on the sidelines of the APEC summit in the South Korean city of Gyeongju.Lee's visit will be the first by a South Korean leader to China since 2019.The South Korean leader has sought a reset in relations with China after years of fraught ties under his predecessor Yoon Suk Yeol.Seoul has for decades trodden a fine line between top trading partner China and the United States, its chief defence guarantor.Relations...