Trat (Thai: ตราด) is a province (changwat) of Thailand. It is located in the east of Thailand, at the border to Battambang, Pursat and Koh Kong of Cambodia, at the shore to the Gulf of Thailand. The neighboring province is Chanthaburi to the northeast.

The history of Trat can be traced back to 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 country’s stability and economy due to its strategic location. The town of Trat has later become a community of Chinese Merchants.

Trat served as a checkpoint and buffer city in 1767 and was responsible for providing provisions to King Taksin the Great before he moved his navy from Chanthaburi to Ayutthaya, where he expelled the Burmese and liberated the Kingdom from Burmese rule.

In Rattanakosin era, during the Paknam crisis in 1893 the French colonist army occupied the western part of Chantaburi. In 1904 in order to get back Chantaburi Siam had to give Trat to French Indochina. Trat became part of Thailand again on March 23, 1906 in exchange for many areas east of the Mekong river like Battambang, Siam Nakhon and Sisophon.

During the Indochina War, the French Navy tried to seize Trat again. The French – Thai Battle broke out on 17 January 1941 at Ko Chang. The Thai Navy successfully drove out the French Navy

The Cardamom mountain range forms the boundary to Cambodia in the east of the province. The second biggest island of Thailand is Ko Chang, belonging to the province. The island, together with more than 40 surrounding smaller islands, forms the Mu Ko Chang Marine National Park. Trat is most famous for gemstone mining as well as gem trading.

Other islands of the province include: Ko Kham, Ko Mak, Ko Phi.

The provincial seal shows the sea with a mountain in the background.
Provincial tree is the Tropical Almond (Terminalai catappa).

The province is subdivided in 5 districts (Amphoe) and two minor district (King Amphoe). These are further subdivided into 38 communes (tambon) and 254 villages (muban).

Extracted from Wikipedia: Trat Province