Born to a Hongkonger father and a Korean mother,[1] Pang studied in Shatin Christ College for secondary school, during which he worked with Wong Yuk-man from League of Social Democrats between 2009 and 2011.

Once participated in the 2014 Umbrella Movement protest,[2] Pang lost Hong Kong University Students' Union elections in 2014 and 2015, after one of his proposed executive colleague was revealed to be a member of the Communist Youth League of China.

[3] Pang joined pro-democracy Hong Kong South Concern Group in 2019, and ran in the local elections for Stanley & Shek O constituency where he had been focusing on.

With the increased turnout and support amidst the anti-extradition bill protest, Pang defeated five-time councillor Lee Pui-ying with 49.9% of votes.

He was one of the few defendants released on bail by court in early March,[11] but will have to give up travel documents, observe a curfew and report to police regularly, in addition to a ban of making remarks that could be deemed as endangering national security.