For the first time in more than a decade, Chinese President Xi Jinping will visit South Korea next week, travelling to the historic city of Gyeongju for talks with South Korean President Lee Jae-myung as well as to attend the Asia-Pacific Economic Cooperation (Apec) summit.

Topping the agenda at every stop is trade, with negotiators still ironing out the details of pacts expected to be signed on Trump's tour of Asia.