Chief Metropolitan Officer, Member of the Executive BoardMr. Paulo Massato Yoshimoto serves as the Chief Metropolitan Officer and a Member of the Executive Board of Companhia de Saneamento Basico do Estado de Sao Paulo SABESP. From 1983 to 1989 he was Executive Assistant of the Directorate of Metropolitan Operation. Between 1989 and 1993 he was Superintendent of Maintenance responsible for the teams of the central office of maintenance of largescale electromechanical equipment and of the office of hydrometers emergency civil maintenance and reservoirs. Between 1993 and 1996 he was Superintendent of Technical Support of the Operation of the Metropolitan Region. From 1996 to March 2003 he was Superintendent of Support and Planning of the Metropolitan VicePresidency of Distribution. He received a degree in Civil Engineering from Centro Universitario de Lins UNILINS in 1975.