Han Siong Kong's branch of the family is descended from Han Hong, who received the degree of Metropolitan Graduate in the Imperial examination of 1121, then received an appointment as Secretary in the Ministry of Inland Revenue during the Song Dynasty (960-1279).
Keluarga Han Siong Kong berasal dari cabang silsilah keturunan Han Hong, yang mendapat gelar Lulusan Metropolitan (Huìshì) dalam ujian Kekaisaran tahun 1121, kemudian diangkat sebagai Sekretaris di Kementerian Pendapatan Dalam Negeri selama Dinasti Song (960-1279).