Career
He is also the former Council Member for the state of Melaka on the task force of housing, local authorities, environment and transportation. Koh is the politician and the Chief of Master of Computer Applications Bukit Katil Division, Melaka. He was a state legislative assembly member for the constituency of North.19 Kesidang, Melaka during the 2004–2008 term.
He was later defeated by the Directory of American Philosophers"s Goh Leong San, candidate in the 12th General Election.