Over 60 years opening the way underground

OSSA, Obras Subterráneas, was set up in 1952.

It was a difficult start in the demanding world of mining, at a time when manual labour received little help from machines.

But the entrepreneurial courage and tenacity of the founders provided OSSA with the culture, infrastructure, human resources and optimal mechanical methods so that the company would grow over more than 50 years to become the current leader in the underground works sector in the Iberian peninsula.

1952 Founded in Asturias (northern Spain), originally dedicated to mining (galleries and shafts)
- Imprtant mining areas: Almadén, Iberian Pyrite Belt in Huelva, Linares and Suria
1958 OSSA began hydraulic work
- Projects: Hydroelectric Plants in Miranda, Conso, Toga; Nuclear Power Plant in Cofrentes, etc.
1975 As a result of the downturn in Spanish mining, OSSA diversified its activity into the construction of road and rail tunnels
1985-2008 The company focussed its activity on roads and railways throughout Spain, working on major infrastructure development projects in Spain
- Road tunnels: Guadarrama, Cadí, Negrón, Piqueras etc.
- Railway tunnels: high-speed network AVE (e.g. Pajares, San Pedro, Ontígola etc.)

OSSA is currently involved in constructing the main railway network (AVE) and developing roads in Spain
2008 Historically OSSA had been a 100% family owned company with the Figar family as the sole shareholder from 2005

In July 2008 Mercapital took majority ownership in conjunction with the Management Team. The Figar family reinvested in a number of shares and remains a minority shareholder
2008-Today Key positions in the Management Team have been strengthened (CEO, COO, CFO, International Director), while maintaining the know-how of the previous team, as the company works towards reaching its new identified goals

Improvements in IT systems and Management Control

Launch of International Operations, having secured contracts worth over €682 million in Europe, Asia and Latin America, and working as a partner in deals in Emerging Markets
More than 600 Km of tunnels
More than 60 Km of the Spanish High-Speed railway (AVE) in the last five years
30% market share
More than 75 km of shafts
More than 70% of the shafts built in Spain in the last fifteen years
Important clients include Rio Tinto, Narcea Gold Mines, Hunosa, Iberpothas, Somincor etc.
More than 500.000 m³ of caverns built for hydroelectric power plants in the major Spanish facilities
Strong international presence. OSSA is present in over 15 countries.
OSSA has established experience in mining in Peru and Chile.
More than 7 contracts for the Santiago Metro, Chile.

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