Date of appointment: 26 May 2008
Date of last re-appointment: 29 April 2015
 
Appointed as the Executive Chairman since March 2009, Mr Koh is responsible for the overall management of the Group’s operations, as well as the formulating and implementing the Group’s business strategies. As the founder and managing director of the Company from 1980 to 1991, Mr Koh was its chairman from 1991 to 2004. He resigned as a managing director in 2004 to pursue other business interests. From 2004 to March 2009, Mr Koh developed and managed a valve manufacturing business in the PRC, Duvalco Valves (Wuxi) Co., Ltd, where he is the director.