Qualitech Public Company Limited provides non-destructive testing, inspection, and certification services in Thailand and internationally. It offers technical services testing, inspection, and certification for operation safety of industry equipment, pressure vessels, industrial boilers, piping, and steel structures; and various asset integrity and plant inspection, as well as welding solutions. The company also provides inspection and certification services for pressure vessels, fixed tanks, aboveground and underground storage tanks, fire tube and water-tube boilers, and LPG and transportation tanks, as well as oil and gas pipelines; and engineering advices as an independent third party engineering service provider to various organizations in order to test and evaluate equipment. In addition, it offers metallurgical testing laboratory services comprising mechanical testing and corrosion test, as well as chemical composition, metallography, and failure analysis; and oil and chemical tank cleaning services. The company serves various companies in energy and petrochemical industry, such as power plants, oil refineries, petrochemical and gas separation plants, gas filling plants, and production plant and machinery equipment installation comprising users of tanks, machines, and equipment. Qualitech Public Company Limited was incorporated in 1991 and is headquartered in Rayong, Thailand.