EcoRodovias announces traffic growth figures for the first quarter of 2011 ECORODOVIAS INFRAESTRUTURA E LOGÍSTICA S.A. (BM&FBovespa: ECOR3) hereby informs the market of its concessionaires' preliminary consolidated traffic figures for the first quarter of 2011. The results showed here are subjected to eventual updates. Highway Concessions Consolidated traffic in terms of number of equivalent paying vehicles rose 21.1% in the first quarter of 2011 compared to the same period of the previous year. Growth in consolidated traffic was 10.2% for commercial vehicles and 31.3% for passenger vehicles. Traffic Volume (vehicles-equivalents - thousand) Comercial Ecovias dos Imigrantes Ecopistas Ecovia Caminho do Mar Ecocataratas Ecosul Rodovias do Sul Total Passanger Ecovias dos Imigrantes Ecopistas Ecovia Caminho do Mar Ecocataratas Ecosul Rodovias do Sul Total Comercial + Passanger Ecovias dos Imigrantes Ecopistas Ecovia Caminho do Mar Ecocataratas Ecosul Rodovias do Sul CONSOLIDATED 1T11 1T10 Var. 5,677 6,375 2,277 3,705 3,741 21,775 5,442 5,491 2,213 3,546 3,060 19,752 4.3% 16.1% 2.9% 4.5% 22.2% 10.2% 8,744 13,420 1,284 2,635 1,477 27,560 7,689 8,388 1,187 2,368 1,351 20,983 13.7% 60.0% 8.2% 11.3% 9.3% 31.3% 14,421 19,795 3,561 6,340 5,218 49,335 13,131 13,879 3,400 5,914 4,411 40,735 9.8% 42.6% 4.7% 7.2% 18.3% 21.1% Note: Vehicles-equivalent is a b asic reference unit used in toll collection statistics in Brazil. Light vehicles, such as passenger vehicles, correspond to one vehicles-equivalent. Heavy vehicles, such as trucks and b uses, are converted into axle-equivalents b y a multiplier applied to the numb er of axles per vehicle, as estab lished in the terms of each concession contract Roberto Nakagome Investor Relations Officer +55 11 3709 4990 [email protected] http://www.ecorodovias.com.br/ir 1