So Man-sul was the chairman of the Central Standing Committee of the pro-Pyongyang General Association of Korean Residents in Japan (Chongryon), as well as a member of the Supreme People's Assembly of North Korea.
Death
On 19 February 2012, he died of heart failure at his home in Tokyo's Edogawa ward, at the apparent age of 84. A funeral service was held in Tokyo's Korean Hall in the presence of funeral committee chairman Ho Jong-man and others. ==References==