South Korea and the United States held their first "two-plus-two" meeting of finance and monetary policymakers in Bangkok on Friday, on the sidelines of a G20 ministerial gathering. The meeting, involving South Korean Finance Minister Lee Hyoung-il and Bank of Korea Gov. Shin Hyun-song, along with US Federal Reserve Chair Kevin Warsh and US Deputy Treasury Secretary Francis Brooke, aimed to strengthen coordination in responding to external uncertainties.