Ong has won nine awards from the
American Watercolor Society; the Paul B. Remmy Memorial Award in 1983, the Lucy B. Moore Award in 1988, the Clara Stroud Memorial Award in 1989 and the Barse Miller Memorial Award in 1992, Winsor & Newton Award in 2000 and the Ida Wells Memorial Award in 2001. He has been an active member of the society since 1990 and was the first Asian outside the US to be awarded membership. After having won five of its awards, Kim Seng was made a
Dolphin Fellow of the AWS in 2000. In 1990, he was awarded the
Cultural Medallion for visual arts by the President of the Republic of Singapore. The Cultural Medallion is administered by the
Ministry of Information, Communications and the Arts. He was conferred as Dolphin Fellowship in 2000. He won the Excellence for Singapore Award presented by the
Singapore Totaliser Board in 2000. He was also awarded the Singapore Internationale by the
Singapore International Foundation in 2001. His most recent award is the 2001 Arts Supporter Award presented by the
National Arts Council. He has also received many other less significant awards. They include: • 1974 - First Prize, Port of Singapore Authority Encouragement Scheme Open Art Competition • 1983 - Paul B. Remmy AWS Memorial Award, American Watercolour Society, New York, USA • 1988 - Lucy B. Moore Memorial Award, American Watercolour Society, New York, USA • 1989 - Clara Stroud Memorial Award, American Watercolour Society, New York, USA • 1990 - Cultural Medallion (Visual Arts), Ministry of Information and the Arts, Singapore • 1992 - Barse Miller Memorial Award, American Watercolour Society, New York, USA • 2000 - Winsor & Newton Award, American Watercolour Society, New York, USA • 2000 - Conferred the Dolphin Fellow by American Watercolour Society, New York, USA • 2000 - Excellence for Singapore Award, Singapore Totalisator Board • 2001 - Singapore Internationale Award, Singapore International Foundation • 2001 - Ida Wells Memorial Award, American Watercolour Society, New York, USA • 2001 - Supporter of the Arts Award conferred by the National Arts Council • 2003 - Silver Award, National Watercolour Exhibition of the People’s Republic of China, Fuzhou, China • 2010 - Winsor & Newton Award, American Watercolour Society, New York, USA • 2010 - Friend of Heritage Award, National Heritage Board, Singapore • 2014 - Master of ASEAN Watercolourist at the World Watermedia Exposition, Thailand • 2015 - Frederick Wong Award, American Watercolour Society, New York, USA • 2017 - Top 25 Watercolour Painters in the World, International Watercolour Festival, Greece == Societies ==