Manila Water Company, Inc. (MWC) was incorporated on January 6, 1997 to provide water delivery and sewerage and sanitation services to a broad range of residential, commercial and industrial customers. Under the terms of the Concession Agreement entered into on February 21, 1997 with the Metropolitan Waterworks and Sewerage System (MWSS), MWC was granted exclusive rights to service the East Zone as an agent and contractor of MWSS. Under the agreement, MWSS granted MWC the use of MWSS' land and operational fixed assets. The agreement also granted MWC the exclusive right, as agent of MWSS, to produce and treat raw water, distribute and market water, and collect, transport, treat, dispose and eventually re-utilize wastewater, including reusable industrial effluent discharged by the sewerage system for the East Zone. The East Zone encompasses parts of Manila, San Juan, Taguig, Pateros, Antipolo, Taytay, Jala-Jala, Baras, Angono, San Mateo, Rodriquez, Marikina, Pasig, Mandaluyong, Makati and most of Quezon City. MWC also provides sanitation services (including desludging of septic tanks) to its customers in the East Zone. MWC's principal shareholders include the Ayala Corporation, United Utilities Pacific Holdings BV, Mitsubishi Corporation, and the International Finance Corporation. Source: SEC Form 17-A (2008)