Sammy was the first prize winner in the Operatic Aria competition organised by the Hong Kong Youth Singing Festival in 2006. He then graduated from HKAPA in 2008. He has been a participant of the Jockey Club Opera Hong Kong Young Artist Development Programme since 2015. Sammy has performed more than 20 operatic roles, Don Giovanni, Carmen, La Bohème, La Traviata, Le Nozze di Figaro, Così fan tutte, Roméo et Juliette, Turandot, Dido and Aeneas, Roigoletto, Tosca, and Amahl and the Night Visitors. He collaborates frequently with Musica Viva, singing most recently the title role of The Legend of Zhang Baozai, the roles of Belcore in L'Elisir d'Amore and Marcello in La Bohème.