Since 1995, Padaeng Industry has imported zinc sulphide as a feedstock for the refinery. Because of its slightly different properties, zinc sulphide must first be roasted to form the oxide “calcine” before the zinc can be extracted.
The company has converted its operations to include a facility to produce zinc oxide (calcine). This facility is located on the grounds of the Padaeng Industrial Estate at Map Ta Phut in Rayong province on the eastern seaboard of Thailand, which began operations mid-1995. Zinc sulphide is converted into calcine during the roasting process, while the sulphur constituent is converted into saleable sulphur acid. The calcine is then delivered to the zinc smelting plant in Tak province.
2004 : ISO 14001 recertification for environmental standards from the BVQI. 2003 : TIS 18001 and OHSAS recognition for its occupational health and safety management systems accreditation from the BVQI. 2002 : ISO 9001 certification for quality management system from the BVQI
2006 : Won the outstanding energy conservation award in the Thailand Energy awards contest from Department of Alternetive Energy Development and Efficiency of the Ministry of Energy 2006 : Received award for outstanding health and safety at work in 2006 for the second year from the Ministry of Labour. 2005 : Received award for good performing metallurgical plant from Department of Primary Industry and Mines (DPIM), Ministry of Industry. 2005 : Received award the “outstanding health and safety at work” in 2005 from the Ministry of Labour