He is one of the 13 founding members of the Singapore Watercolour Society. His passion also led him to be part of the founding members of the Nanyang Academy of Fine Arts Alumni Association. As the Honorary member of the Old Watercolour Society Club (UK), Australia branch, his works reflect his experience in the use of the medium. He is also a member of the China Association (Yang Zhou) and a member of HanZou Watercolour Association (China).
Taken from http://www.watercolour.org.sg/members/leechoonkee.html