Cobriza to Increase Production by 16 Percent in 2007

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Doe Run Perú expects production at its Cobriza copper mine to reach 19,700 fine metric tons in 2007, signaling a 16% increase over production for last year (17,000 fine metric tons).

Doe Run Perú expects production at its Cobriza copper mine to reach 19,700 fine metric tons in 2007, signaling a 16% increase over production for last year (17,000 fine metric tons).

The mining and metallurgical company has estimated this increase on the basis of the preparation work (sustainment) conducted, their adequate equipment selection and the optimization of the working areas in the mining deposit located some 390 km southeast of La Oroya, in the region of San Pedro de Coris, Huancavelica. "Cobriza has become a selective exploitation mine extracting better quality ore that will guarantee its operational continuity; it has resources amounting to 10.37 million tons with a 1.17% equation of copper, and a daily production of 5,260 metric tons with 0.98% equation of copper", said Alfredo Menautt, Doe Run Perú manager - Cobriza Division.

Over the last eight years, Doe Run Perú has been developing its operations at Cobriza, working to the highest safety and environmental protection standards in line with Peruvian legislation.

At this deposit, the company has successfully concluded its Environmental Management and Adaptation Program, with an investment of US$ 13.6 million dollars, as compared with the US$ 5 million originally committed to. In this connection, Cobriza is close to completing the third year of its environmental undertaking to achieve zero discharges of effluents into River Mantaro since July 2004.

About the Cobriza Mine
Cobriza, an underground mine, produces copper concentrates for the La Oroya copper smelter and refiner, which also belongs to Doe Run Perú.

About Doe Run
A mining and metallurgical company in the central hills of Peru, which has been operating the La Oroya metallurgical complex since October 1997 and the Cobriza copper mine in Huancavelica since September 1998, producing high-quality refined metals with full awareness of and compliance with its social and environmental responsibilities.

For further information contact:
Victor A. Belaunde
+(511) 215-1285

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Kristina Shaw

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