- Koeh Sia Yong was born in 1938
- At the age of 8, he became interested in painting. He eventually attended the Nanyang Academy of Fine Arts (NAFA) and graduated in 1958 from the western art department.
The value of the genuine school of art lies in the fact that it does not lose its integrity amidst the ugly commercial dealings belonging to the decadent bourgeois. Instead, it always works to faithfully reflect or expose the very root of the reality of life, to spread the Truth, the Virtue, and the Beauty of this world. "
- Between 1979 and 1980, he produced large numbers of political cartoons
- After 30 years in the advertising industry, he took up painting as a full time endeavour in 1990.