MATERIAL FACT: Second Regular Tariff Revision of Sabesp

SÃO PAULO, Jan. 19, 2018 /PRNewswire/ -- Companhia de Saneamento Básico do Estado de São Paulo – Sabesp ("Company" or "Sabesp"), pursuant to the provisions of Article 157, Paragraph 4 of Law No. 6.404/76 and the provisions of CVM Instruction No. 358/02, hereby informs its shareholders and...