Born in Bangkok. He graduated from Silapakorn University, Faculty of Painting, Sculpture and Graphic Art. His style is often surrealistic and full of symbols. In his earlier work, the artist’s focus has been on environmental degradation such as in his series from the late 1990s. A technical signature of his very unique style is that in addition to using a brush, he uses the edge of a cutter to produce very fine lines. In 1997 Sudjai won the ASEAN Art Awards in Thailand. He has also won prizes from private corporations as well as from international bodies such as the UN (Our World in the Year 2000 – The United Nations Millennium Art Exhibition) for his artwork reflecting on environmental awareness. Sudjai also participated in the Osaka Triennale in Japan in 1996.