Heng has been drawing for Lianhe Zaobao, the largest daily newspaper in Singapore, since 1984. He also works for other Asian newspapers and his cartoons are published in several international papers. In 1998 he won first prize organised by the United Nations as part of ESCAP (Economic and Social Commission for Asia and the Pacific) and in 2000 he received the Grafica Internazionale Award at the international festival of political satire in Italy.
