Mining leases to the Padaeng zinc deposit were granted by the Thai government in 1972 to the Thai Zinc Company. Zinc ore had been mined for several years before the government granted Padaeng Industry in 1982 a 25-year concession to mine zinc ore on a 250-rai (40-hectare) area in Mae Sot district, Tak province. A large deposit of zinc silicate was found. Consequently, a zinc mine named “Padaeng Mine” based on an open ladder structure was opened in 1984.
2008 : Attained the ISO 9001:2008 accreditation for quality management, the ISO 14001:2004 accreditation for environmental management and the OHSAS 18001:2007/TIS 18001:1999 occupational health and safety accreditation.
Achieved an accident-free record for 1,000,000 hours in March 2008 and received a certificate from the Zero Accident Campaign of the Ministry of Labour.
Received the outstanding labour relations and welfare from the Department of Labour Protection and Welfare, Ministry of Labour.
Received the logistics management award from the Department of Primary Industries and Mines under the Ministry of Industry.
Received the award for good performing aggregate plant from Department of Primary Industries and Mines (DPIM), Ministry of Industry.
Received the award for good performing mining operator from DPIM.
13 Moo 4 Phratad Padaeng subdistrict, Mae Sot district, Tak 63110, Thailand
(P.O.Box 29 Amphoe Mae Sot Tak 63110)