
Recognition for outstanding safety and health management (Chile)
OSSA, in consortium with the company Echeverría Izquierdo, has been recognized in the project “Construction

OSSA, in consortium with the company Echeverría Izquierdo, has been recognized in the project “Construction

One of the technical difficulties of the Route 60 tunnel, which OSSA is executing in
On Thursday, June 10, the Los Gallos tunnel, which OSSA is building in the State
We invite you to watch the following video about the breakthrough of the connection tunnel

As part of its collaboration with the community, OSSA participated in the celebration of Children’s
Last April 30, the consortium formed by OSSA and EISA carried out the connection breakthrough
InGEOpres magazine has published an article on Sections B and C of the Santiago Metro

True to our commitment to the environment and with the support of all of us

The project of “Construction, Civil Works, Tunnels, Galleries, Tunnels and Stations of Line 3 Extension”,

After the extraordinary snowfall in the center of Spain due to the storm Filomena, OSSA
Calle Isla Graciosa, 1
28703 San Sebastián de los Reyes, Madrid. Spain.
+34 91 782 34 00
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