NCH Vietnam Division: CHEM-AQUA *** CHEM-AQUA is a wholly owned water treatment subsidiary of NCH Corporation www.chemaqua.com www.nch.com Chem-Aqua is the wholly owned Water Treatment division of NCH Corporation, a worldwide company that has been providing high-quality maintenance suppliers, chemicals and services since 1919. Chem-Aqua has almost 100 years of Water Treatment experience in supplying Boiler, Cooling Tower, Chiller, Evaporative Water Treatment program to commercial, industrial and institutional customers worldwide. The goal of the organization is to help customers minimize energy, water, and maintenance costs while ensuring safe and reliable operation of their systems.