In May 1954, she was appointed Deputy Director of the Central Committee of the North Korean Democratic Youth Alliance, later becoming vice chairman in October 1959.
[1] In an unknown year, Jong-suk was appointed Chairman of the Korean Committee for Solidarity with Peoples of the World.
In March 1988, Jong-suk was by-elected as a candidate for the Central Committee of the Workers' Party of Korea and served as Chairman of the North-Finland Friendship Association nine months later.
Jong-suk was one of the delegates to the 9th, 10th, 11th and 12th Supreme People's Assemblies, as well as the chairman of the Joseon Foreign Cultural Liaison Committee in December 2009.
[1][7] In April 2011, she became vice chairman of the North Korea Preparatory Committee commemorating the 100th birthday of Kim Il Sung.