[5] Previously, he served as the deputy chief of North Korea's mission to the United Nations from 2002 to 2006.
Bill Richardson, a former diplomat and frequent American interlocutor in negotiations with North Korea and other adversarial regimes.
[7] In February 2015, he was appointed as director-general of the U.S. affairs department at North Korea's Foreign Ministry.
It is speculated that the reason for his downfall was that he was criticized for the proposal for a US-North Korea summit that he submitted to North Korean leader Kim Jong Un, and that he was involved in the Jang Song-thaek incident in 2013.
[9] In July 2024, Ri Il Kyu [ko], a former North Korean diplomat and defector, told The Chosun Ilbo that Han had been executed by firing squad in February 2019 on charges of spying for the United States.