Press release

Isolux Corsán delivers the Zamora water treatment plant to guarantee drinking-water supply for 129,000 inhabitants.

Rehabilitating the water treatment plant has entailed an investment of €2.5m. It has increased the water treatment capacity from 300 to 400 litres per second.

The expansion works will enable the plant to meet a demand for 32,343m m 3 a day and supply the outlying villages around Zamora.

The company, through its Environment divisions, is a benchmark in the construction of hydraulic engineering infrastructures.

Madrid, 14th March 2011. Isolux Corsán this morning handed over the expansion works of the drinking water treatment plant in Zamora. With this plant in operation, the city as of today has a drinking-water supply capacity for a future population of 129,517 inhabitants. That is 70% more than the current actual deman of 75,128 inhabitants.

The works to expand the treatment plant were carried out with a budget of €2,499,509. They will make it possible to increase the water treatment capacity from 300 litres per second to 400 litres per second, covering a potential demand for 32,343 m 3 a day. This is a 24.3% increase over the 26,000 m3/day recorded to date.

The expansion of the water treatment plant was 100% financed by the regional government of Castilla y Leon. It will not only benefit the town of Zamora but could also supply the outlying villages and localities, such as , Casaseca de Chanos, , , , , , , Pontejos, El Perdigón, , and . All of these villages together contain a current population of 9,057 inhabitants, with a planned target population of 20,000.

The reform of the treatment plant comprised the increase of the water uptake capacity from the Duero River (from 300 to 400 litres per second) with the installation of a new 200kW pump, increasing the plants treatment capacity (1,440m 3/hour); the increase of the filtering capacity; the complete substitution of the control and automation system for the plant and the partial urbanization of the exterior part of the plant.

Press release

About Isolux Corsán

Isolux Corsán is a global benchmark in the construction, power, concessions and industrial services industries The company operates in 23 countries on four continents. It is the largest unlisted Spanish business group in the construction and public-works sector. Its core growth businesses are power transmission, toll road and car park concessions, plus the construction of large infrastructure. Isolux Corsán has 3,574 km of power lines in Brazil and the USA. It owns 1,700 km of toll roads in Brazil, India, Mexico and , and has over 21,600 parking spaces under concession. The group has long-standing experience in construction and maintenance of large infrastructure: toll roads, railways, civil engineering works, hydraulic and maritime engineering works and residential and non-residential building. In the power industry, Isolux Corsán is one of the largest EPC project suppliers for photovoltaic energy, with over 267 MW under operation in 2010. It has a relevant position amongst the major construction companies building EPC generation stations, with 1,500 MW under construction, and also in industrial processes, with turnkey projects in the oil & gas industries and biofuel plants. In 2010, under the chairmanship of Luis Delso, the company reported over €3,240m revenues, with an EBITDA of €311m and a backlog worth €30,180m.

ISOLUX CORSÁN

Communication Manager: Isabel Saracho (+34 91 449 30 21) | [email protected]

Press office Macarena Ramírez (34 91 449 32) | [email protected]