SEOUL -- Just weeks ago, Choi Sang-mok was firmly ensconced in his comfort zone managing Group of 20-member South Korea's $1.9 trillion economy, the 12th largest in the world.
South Korea leadership crisis
South Korea's interim president juggles multiple challenges
Finance mandarin dealing with Yoon's arrest, plane crash, North Korea and Trump return
Choi Sang-mok, front, is a veteran finance official who has been thrust into the role of leading South Korea through a volatile political period. © AP
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