Petrovietnam Chemical & Services Corp. engages in the manufacture chemical products and drilling fluids to the petroleum industry. It also provides well completion, and oil recovery services; cleaning tanker, fuel tank, and industrial equipment; engineering, equipment supply, construction, installation, operation, and maintenance of water supply and wastewater treatment systems; environmental services; and electrochemical anti-corrosion and other services. The company was founded on March 8, 1990 and is headquartered in Ha Noi, Vietnam.