[1] He grew up in Lam Tei, Tuen Mun,[2] and attended Yan Oi Tong Tin Ka Ping Secondary School [zh].

[4][5] He only scored 10 marks in the Hong Kong Certificate of Education Examination and enrolled at San Wui Commercial Society Secondary School [zh] to retake his exams.

[9][10] In 2015, Ng made his acting debut as So Pok-man, a member of a close-knit trio of friends, alongside Cecilia So and Neo Yau in She Remembers, He Forgets.

[11] Edmund Lee of South China Morning Post praised his casting, describing it as "adding a further sheen to the story",[12] and he was nominated for Best Actor in the 22nd Hong Kong Film Critics Society Awards for this role.

[13] He also starred in the political anthology film Ten Years in the segment Self-immolator, portraying Au Yeung Kin-fung, a student democracy activist.

[28] Ng also starred as Ling Su Fei, the male lead and a trainee real estate agent, in the 2020 ViuTV comedy series Who Sells Bricks in Hong Kong [zh].