As the head of the Secretarial Bureau of the Committee for the Peaceful Reunification of the Fatherland (CPRK), she has taken part in numerous negotiations between North and South Korea.

Her feminine clothing has stood out in the otherwise largely male North Korean delegations and attracted media attention.

[3] In 2013, she headed the North Korean delegation of inter-Korean working level talks at the Freedom House in the Joint Security Area.

During the North–South Ministerial Talks in 2005 for instance, she attracted media attention by standing out from the conservatively dressed mostly male delegation with her white two-piece suit.

[9] During the 2013 meeting she was noted for wearing a turquoise suit similar to that worn by Ri Sol-ju, the wife of Kim Jong Un when she was introduced to the public as North Korea's First Lady.

[10] In 2018, she accompanied Kim Yo Jong as a member of the North Korean delegation to the 2018 Winter Olympics in Pyeongchang, South Korea.