Companhia de Saneamento Basico do Estado de Sao Paulo - SABESP is a water and sewage service provider. The Company provides water and sewage services to a range of residential, commercial, industrial and governmental customers in over 375 municipalities in the state of Sao Paulo, including the city of Sao Paulo. The Company's segments include Water and Sewage. The Company's activities comprise water supply, sanitary sewage services, urban rainwater management and drainage services, urban cleaning services, solid waste management services and related activities, including the planning, operation, maintenance and commercialization of energy, and the commercialization of services, products, benefits and rights that directly or indirectly arise from its assets, operations and activities.