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MSR mining reserves are located in the main salt lakes of the Andes region, in the provinces of Catamarca, Salta and Jujuy in Argentina. The salt lakes with significant concentrations of borates, such as tincalonite and ulexite, are legally owned properties of the MSR Group. The main reserve and exploitation source of the company is Salar del Hombre Muerto, Catamarca, located at an altitude of 4,100masl. It is being mined at a rate of 60,000 tons per year and it has more than 2,000,000 tons of proven reserves and potential reserves of around 6,000,000 tons.

All of MSR properties in the salt lakes also have reserves of lithium and potassium salts. For this reason, MSR created a new project for the development and exploitation of these minerals. Virgen del Valle Litio is a first-class sustainable project created by Minera Santa Rita S.R.L. with a strategic location. The project consists in the extraction, production and commercialization of refined lithium products.

One of the most important operating mines is “Patito” mine in Salar Centenario, Salta. It is famous for the workers’ devotion to Salta’s patron saints: el Señor y la Virgen del Milagro.


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MSR’s modern processing plant is located in Campo Quijano, 30 kilometers East from Salta city, Salta, Argentina. The facilities are over 200,000 m2, with a covered surface of 14,600 m2. The company produces over 50,000 tons of derivative boron products per year, and it plans to reach 75,000 tons per year with the incorporation of new equipment and more technology investments.

In addition to its main production line dedicated to the production of boric acid, the plant has the latest production lines for the production of boron derivatives together with a modern spray dryer plant, two lines of flash dryers, and two others to produce granular products – one recently inaugurated (2016).

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