Breast Cancer Awareness Month

As every year during the month of October, at OSSA we join in the activities to commemorate the International Day of the Fight against Breast Cancer, with the aim of raising awareness among the company’s workers, as well as collaborators, about the importance of early detection in order to improve the prognosis and survival in […]
Visit to the Villadangos Storm Tank (Spain).

The Minister for the Environment, Housing and Land Use Planning of the Regional Government of Castile and Leon, Mr. Juan Carlos Suárez-Quiñones, visited the works of the Industrial Estate of Villadangos del Páramo (León) on June 17, where OSSA is carrying out, together with Cotodisa Obras y Servicios, the works of the Storm Tank and […]
El Duranguense Tunnel (Mexico).

This video shows the progress of the El Duranguense road tunnel, which OSSA is building in Durango (Mexico). It involves the extension of the section of an existing tunnel of 515 metres in length (going from a 5×5 metre section to a 12×8 metre section). The excavation is carried out entirely with drilling and blasting, […]
Caring for the environment campaign at the Fresnillo Mine (Mexico).

On the occasion of July 7, International Soil Conservation Day, the campaign “Caring for our environment with you” was carried out at the Fresnillo Mine (Mexico). Within the framework of this campaign, a drawing competition was held for the children of workers, to raise awareness about the need to care for the soil. All the […]
OSSA has completed his first project in the Kingdom of Saudi Arabia.

In the summer of 2022, OSSA began its first commercial trips to Saudi Arabia, with a small team. A few months later, the first contract was signed in this country and, after two years of intense work, OSSA has completed this first project, having carried out the excavation and support of more than 2 km […]
OSSA at the 7th Environmental Fair of the Fresnillo District (Mexico)

On the occasion of World Environment Day, OSSA has participated in the 7th Environmental Fair of the Fresnillo District (Mexico), carrying out games and activities for adolescents and primary school children, focused on raising awareness about water care and good practices for its conservation. World Environment Day, celebrated every June 5, was proclaimed by the […]
The R&D&I project “UES 365”, in which OSSA participates, in the Energía Estratégica portal.

The portal Energía Estratégica has published an article on the R&D project “UES 365”, in which OSSA participates. This project is focused on research to lay the technological foundations for new competitive subway stationary energy storage systems associated with renewable energy sources, using compressed air, biogas and green hydrogen as vectors to balance and maintain […]
Our work to extend Line 3 of Metro de Madrid, between the Villaverde Alto and El Casar fronts, in the press

Our work to extend Line 3 of Metro de Madrid, between the Villaverde Alto and El Casar fronts, in the press
Breakthrough at the El Casar subway construction site (Spain)

The President of the Community of Madrid, Isabel Díaz Ayuso, attended the breakthrough of the tunnel for the extension of line 3 of Metro de Madrid, between the Villaverde Alto and El Casar fronts, which OSSA is executing together with Azvi and Cotodisa. Currently, 2.3 km of the total 2.6 km have already been excavated, […]
OSSA verifies carbon footprint calculation

At OSSA we are interested in knowing the impact that our activity has on the environment and that is why we have calculated our carbon footprint (HdC), a calculation that has been verified by the EQA. At OSSA we remain committed to protecting the environment.