The Director of Drainage Services, Mr Edwin Tong (fourth left), and the Assistant Director of Drainage Services (Sewage Services), Mr Henry Chau (third left), sign the "Design, Build and Operate" contract for the Upgrading of San Wai Sewage Treatment Works - Phase 1 with the representatives of ATAL-Degremont-China Harbour Joint Venture, Mr Michael Cheung (first left), Mr Luo Sixiong (second left), Mr Raymond Chan (fourth right), Mr Nelson Hong (third right), Mr Francois Fevrier (second right) and Mr Germinal Bertrand (first right), at the Drainage Services Department Headquarters in Wan Chai today (May 27).