Sui Hoe Khoo, also known as Ray Khoo was graduated from Nanyang Academy of Fine Art in Singapore in 1961. He has held more than 50 one-man shows in Singapore,
Malaysia, Thailand, Indonesia, Taiwan, China, Australia and United States. He also took part in numerous open shows in India, Japan, England, Ireland, Germany and Brazil.
In 1974 Khoo was awarded a John D Rockefeller 3rd Fund grant to study Contemporary Art in the U.S. He also toured major museums in Europe, traveled to Middle-East, Central Asia.