The former Seoul office head of Simpson Thacher & Bartlett has joined Kim & Chang, South Korea’s largest law firm.

Youngjin Sohn led the Wall Street firm’s office in the South Korean capital until its closure in November. He remained a Simpson Thacher partner until the end of 2018 and joined Kim & Chang as a partner in January. News of his move, however, wasn’t made public until this week. Kim & Chang also separately hired two former Simpson Thacher Seoul associates.