VWS (Beijing) and OTV (Shenzhen) are awarded ISO 9001 certificate

In December 2011, VWS (Beijing) Co. , Ltd and OTV Engineering (Shenzhen) Co., Ltd were awarded ISO 9001:2008 certificate. The Quality Management Systemfor Design, ssuply, installation, commissioning and other related services of process plants for the treatment of potable water, waste water and sludge has been audited by TÜV SÜD.