Initially involved in rugby league, he transitioned to association football as a player, coach, referee, and administrator.
While working in the New Guinea Highlands, he secured external funding and contributed personal resources to youth development programmes.
Following Temarii's suspension by the FIFA Ethics Committee over corruption allegations in November 2010,[3] Chung was appointed Acting President, with New Zealand's Fred de Jong as Senior Vice-President.
[1] In July 2012, Chung was appointed an Officer of the Order of the British Empire in the Queen’s Birthday Honours.
[8][9] In March 2019, he was fined 100,000 Swiss francs (£76,000) and banned from all football-related activities for six-and-a-half years after being found guilty of corruption.