• What we do
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Here begins the aluminum production chain


We extract and benefitiate bauxite, a reddish rock that is the raw material of aluminum. With safety and socio-environmental commitment, we supply the domestic and international markets with a product of excellent quality, which helps to develop the region where we operate and Brazil as a whole.

The value of bauxite

From the soil we obtain the raw material used in industries and services essential to modern life, such as transmission and distribution of energy, medical equipment, computers, construction, packaging and a wide variety of household utensils.


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How we work

Our annual production is around 12 million tons. The result of the talent of thousands of professionals involved in the extraction, beneficiation, rail transport, drying and shipment of bauxite to refineries on three continents.

Learn about our production process

  • At MRN, the safety of operations comes first. Our processes are certified, thus securing operational excellence, safety of structures and processes. Moreover, all the direct and indirect professionals working in the company go through constant training and are equipped with the best in term of safety devices.


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  • We are a benchmark in the market in terms of actions related to environmental conservation, especially with regard to the rehabilitation of disturbed areas. Our first actions date back to the 70's and today we have accumulated great expertise in the subject.


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  • Our industrial process tailings containment structures are operated by over 100 professionals, who are instructed and audited by national and international companies specialized in inspection, maintenance and prevention.


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  • Producing growth and contributing to sustainable development are assumptions that have always guided our local operations. We maintain a number projects aimed at improving health, public management, environmental conservation, and education indicators, amongst other areas, through income generation, support to the infrastructure of the municipalities and improvement of the quality of life in the region.


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The destinations of the Porto Trombetas bauxite

Most of the MRN bauxite remains in Brazil, where it is transformed into alumina and metal aluminum in other industries in the states of Pará and Maranhão.The rest of the production is exported to countries in North America,

Europe and Asia. The ships departing from Porto Trombetas with bauxite sail hundreds of kilometers along the rivers in the Amazon as far as the Atlantic Ocean.