Trat (Thai: ตราด, pronounced [tràːt]) is the easternmost province (changwat) of Thailand. It has borders with Chanthaburi Province to the northwest, Cambodia to the east, and the Gulf of Thailand to the south. Trat is 315 km from Bangkok. Trat is most famous for gemstone mining and trading.
The history of Trat can be traced back to the early 17th century during the reign of King Prasat Thong of the Ayutthaya Kingdom. Formerly known as Mueang Thung Yai, Trat has played an important role in the development of the country’s stability and economy due to its strategic location. The town of Trat later become a community of Chinese merchants.
After the fall of Ayutthaya to the Burmese in 1767, Trat served as a checkpoint and buffer city and was responsible for providing provisions to King Taksin the Great before he moved his forces from Chanthaburi to Ayutthaya. King Taksin then succeeded in driving out the Burmese invaders and liberated the kingdom from foreign rule.