Mr. Yung was admitted as a solicitor in Hong Kong in 1992 and in England and Wales in 1993. From 1994 until 1997, Mr. Yung was a solicitor with a London-based firm, and between 1997 and 2000, served a leading local commercial firm, becoming a partner in 1998.
He is the Honorary Legal Adviser to The Chamber of Hong Kong Listed Companies. Honorary Legal Adviser to Room to Read (Hong Kong) Limited (a charitable organization) and a Council Member of Helping Hand (a charitable organization). He is proficient in English, Mandarin, and Cantonese.