Estre Ambiental S/A. agreed to acquire Cavo Serviços e Saneamento from Camargo Correa S.A. for approximately BRL 610 million on March 4, 2011. For the year 2010, Cavo Serviços reported revenues of BRL 500 million. The deal was structured by BTG Pactual. CSFB Garantia acted as the financial advisor to Camargo Correa S.A.

As of April 3, 2014, The Administrative Council for Economic Defense has approved the transaction with restrictions. The transaction will be completed only when there is severance of corporate relations between Estre and Solvi.

Estre Ambiental S/A. completed the acquisition of Cavo Serviços e Saneamento from Camargo Correa S.A. on October 3, 2014.