Estre Ambiental, Inc. announced that, on January 31, 2019, Andreas Y. Gruson informed the Board of Directors of the Company that he was resigning as Chairman as of February 28, 2019. The Board of Directors has elected Dr. Gesner Oliveira as its new Chairman, effective March 1, 2019. A member of Estre’s board of directors since 2018, and a current member of its audit committee, Dr. Oliveira is a partner of GO Associados, a macroeconomic consulting firm in Law & Economics and Infrastructure, and Professor of Economics at Fundação Getúlio Vargas (São Paulo).