Tongkah Harbour Public Company Limited is a mining company and property developer in Thailand. The company was listed on the Stock Exchange of Thailand (SET:THL) in 1993.[1][2]
The company was founded in 1906 by Edward T. Miles as the "Tongkah Harbour Tin Dredging Company N.L." It began offshore tin mining in Phuket Bay in 1907.[1]
In 1991 the company's subsidiary, Tungkum Limited (TKL), was founded and granted a concession in the Wang Saphung District of Loei Province for the exploration and mining of gold and related minerals.[1] Tungkum has been the target of demonstrations by residents living in the vicinity of the gold mine. They accuse the company of environmental destruction.[3][4][5]