Marcelo Brani Silva de Abreu

OAS SA is a holding company engaged in the provision of engineering and civil infrastructure construction services. Its projects include highways, railways, docks, airports, power plants, and water treatment facilities. It also undertakes design-build ventures such as hospitals, hotels, commercial centers, sports arenas, and residential spaces. The company was founded by Cesar Mata Pires, Durval Olivieri, and Carlos Suarez in 1976, and is headquartered in Sao Paulo, Brazil.

OAS SA is a holding company engaged in the provision of engineering and civil infrastructure construction services. Its projects include highways, railways, docks, airports, power plants, and water treatment facilities. It also undertakes design-build ventures such as hospitals, hotels, commercial centers, sports arenas, and residential spaces. The company was founded by Cesar Mata Pires, Durval Olivieri, and Carlos Suarez in 1976, and is headquartered in Sao Paulo, Brazil.

OAS SA is a holding company engaged in the provision of engineering and civil infrastructure construction services. Its projects include highways, railways, docks, airports, power plants, and water treatment facilities. It also undertakes design-build ventures such as hospitals, hotels, commercial centers, sports arenas, and residential spaces. The company was founded by Cesar Mata Pires, Durval Olivieri, and Carlos Suarez in 1976, and is headquartered in Sao Paulo, Brazil.

OAS SA is a holding company engaged in the provision of engineering and civil infrastructure construction services. Its projects include highways, railways, docks, airports, power plants, and water treatment facilities. It also undertakes design-build ventures such as hospitals, hotels, commercial centers, sports arenas, and residential spaces. The company was founded by Cesar Mata Pires, Durval Olivieri, and Carlos Suarez in 1976, and is headquartered in Sao Paulo, Brazil.