FORM OF INTERNATIONAL UNDERWRITING AGREEMENT 100,800,000 SHARES COMPANHIA DE SANEAMENTO DO PARANA - SANEPAR NON-VOTING PREFERRED SHARES, NO PAR VALUE, IN THE FORM OF AMERICAN DEPOSITARY SHARES INTERNATIONAL UNDERWRITING AGREEMENTUnderwriting Agreement • April 25th, 2002 • Companhia De Saneamento Do Parana Sanepar • Water supply • New York
