After completing his university studies, Png worked for various organisations including
Philips Singapore and
NTUC Income, before setting up some of his own businesses.
Political career Png joined the Workers' Party in 2006. At the
2011 general election, Png stood in a five-member
Workers' Party team in the
East Coast GRC. The Party was defeated by the governing
People's Action Party (PAP) by 49,429 votes (45.2%) to 59,992 (54.8%). This was third-highest percentage of the votes garnered by losing opposition candidates, which therefore entitled the Workers' Party to nominate a member of the team to become a
Non-constituency Member of Parliament (the party nominated Png's teammate
Gerald Giam). On 10 May 2012, the Workers' Party announced that Png would be the party's candidate in the
2012 Hougang by-election. His nomination was confirmed on 16 May. He was one of two candidates in the by-election, the other being
Desmond Choo of the PAP. Png won the by-election by 13,460 votes (62.1%) to 8,223 (37.9%). Following his election to Parliament, the Workers' Party appointed Png as a vice-chairman of the Aljunied–Hougang Town Council. On 25 June 2020, it was announced that Png would not be contesting in the
2020 general election, but would still remain active in politics. In 2020, Png was re-elected to the WP's central executive committee. He has remained politically active despite retiring from
Parliament prior to the
2020 general election. ==Personal life==