The privatization of water supply and sanitation in Bolivia took place during the second mandate of Bolivian President Hugo Banzer (1997-2001) in the form of two major private concessions: One in La Paz/El Alto to Aguas del Illimani S.A. (AISA), a subsidiary of the French Suez (formerly Lyonnaise des Eaux) in 1997; and a second one in Cochabamba to Aguas del Tunari, a subsidiary of the multinationals Biwater and Bechtel in 1999.