Thawan’s art quickly gained prominence, in Thailand and internationally. He has exhibited extensively in Thailand and around the world, and has created murals at several overseas Thai embassies, public and commercial spaces including the Bank of Thailand, Shell Building, Bangkok Bank, Doi Tung Palace and Siam Commercial Bank among others. In 1998 Thawan designed a golden banner to mark the 6th cycle birthday anniversary celebrations of HM the King. He has represented Thailand and Asian art at top events around the world on numerous occasions.