10 consortiums returning the pre-qualification documents; they comprise: - China Harbour Engineering Company Ltd (CHEC) - SGL-MPS joint operation, - Abeima - Wijaya Karya (Wika) joint operation, - Bosowa - Tirta Prima Consortium, - Manila Water, - Water Consortium, - Salcon Engineering Berhard - Aliran Ihsan Resources, - LG Indonesia - Bakrie Indo Infrastructure, - Medco - Bangun Cipta Kontraktor - MLD Operation Cooperation (KSO), - Acuatico PTE.LTD - Mitsubishi, - Hydrochem PTE LTD. Only 4 of 10 consortiums will participate into the tender offer process