[2][3] Hangin was born in Taibus Banner, Chahar, Inner Mongolia to a prominent family who had long been active in the Qing Dynasty court.
[2][3] He was elected to the National Assembly of the Republic of China in 1947; however, after the Chinese Civil War ended with a communist victory, he emigrated to the United States in 1948.
Here, Hangin was part of a group of Mongol intellectuals including Diluwa Khutugtu Jamsrangjab and Urgunge Onon.
He joined Indiana University Bloomington in 1965 and taught in the Mongolian Program of the Department of Uralic and Altaic Studies, earning a PhD in 1970 and becoming a full professor in 1982.
[7] Together with Tsorj Lama, former Abbot of the Qorgho Monastery in Western Sonid Banner, he founded the Mongol-American Cultural Association in 1987.