His back catalogue (1986–1988) continues to be published by Universal Music Group.
He retired his music career in 1988 and now works as an architect in Seattle, United States, with his wife and son.
[1][2][3] Kwan was born in 1949 in Hong Kong, his ancestral hometown is Nanhai district, Foshan city, Guangdong province, he attended St. Paul's Co-educational College and graduated in 1969.
He was admitted in the University of Hong Kong in the same year and later graduated with a degree of Bachelor of Architecture.
He also declined to accept the Golden Needle Award in 1993 due to him being out of the spotlight for so long.