SEOUL—South Korea will allow one of its largest companies to build a new organic light-emitting diode production facility in China, the first time a Korean firm will transfer the sophisticated technology abroad. Tuesday’s approval by Seoul’s trade ministry is the latest sign that relations between the two countries are improving after a summit between their leaders to restore economic links—and coordinate policy on North Korea—earlier this month. South Korea this year deployed a U.S.-made missile defense battery, triggering...

Source: Wall Street Journal December 26, 2017 07:06 UTC