A AMG Mineração (successor to MIBRA – Cia Estanho Minas Brasil) is an important producer of spodumene concentrate, tantalum concentrate, tin in ingots and feldspar, located in Nazareno, in the state of Minas Gerais, Brazil.

AMG Mineracao History

MIBRA – Cia Estanho Minas Brasil – Officially founded on the 15th of October 1945 by the Guimarães family and later taken over by CIF Mineracao S/A, had as its objective the industrial exploration of mineral deposits, metallurgy and the sales of these products. Explorations were initially carried out in semi-mechanized methods, becoming modernized in the years ahead with the installation of mills and magnetic separation plants.

In 1978 the life span of mining activity was estimated at 3 years. The owners then decided to sell 70% of the company to the Metallurgy Group that had started research on new fields within the mining area, as well as, starting work on environmental recovery of areas that had been degraded at that time.

In 1983, CIF – Cia Industrial Fluminense, which had been taken over by LSM Brazil, acquired the remaining 30% of MIBRA and as the representative of the Metallurgy Group, which it had already acquired in 1979, began to administer Mibra with renewed working methods, always seeking increased productivity through process reengineering.

In 1993, MIBRA – Cia. De Estanho Minas Brasil – was incorporated to CIF – Cia Industrial Fluminense and thus became known as CIF – Volta Grande Branch, but it continued to be called by the affectionate name MIBRA.

From 1996, MIBRA started a period of research and development of products and processes, as well as in investments such as in Spirals Plants, the reuse of waste such as industrial minerals, improved recovery of tantalum, consolidated with increased plant capacity to 25,000 tons per month of pegmatite in 2000.

In the same period, studies were begun to develop the MIX Ceramic Project, with the use of waste from the transforming process, where 90% of the material could be marketed as Feldspar, a raw material used in the ceramics and glass industries.

The Production of Feldspar began in 2003 in its natural state, at this time no longer considered an environmental problem, but instead became one of the most profitable products of the company. Feldspar production soon rose from 1000 tons to the current 12,000 tons per month, supplying 80% of the ceramic industry and thus making it a reference in the domestic market.

In 2009 the company completed the largest project in its history by expanding its capacity to 50,000 tons per month of pegmatite, and as such becoming a major producer of tantalum in the world, where it already has one of the largest global reserves of the product.

This was the first step toward Sustainable Growth, Environmental Protection, Safety and Social Responsibility.