Sebastião Henrique Ubaldo Ribeiro

Samarco Mineração SA engages in the production and processing of iron ore. It has integrated operation which consists of the mining and beneficiation of low-grade iron ore and the transportation of the concentrated ore in the form of slurry through pipelines. The company was founded on May 11, 1977 and is headquartered in Belo Horizonte, Brazil.

Part of Dassault Systèmes SA, Gemcom do Brasil Ltda develops technical support software solutions for the mining industry. The company is based in Belo Horizonte, Brazil.

Part of Vale SA, Valesul Aluminio SA is a Brazilian company that produces aluminum. The company is based in Santa Cruz, Brazil. Valesul Aluminio was acquired by Vale SA from BHP Group Ltd. on July 03, 2006 for $27.50 million.

Mineração Rio do Norte SA extracts, processes and sells bauxite ore. It also transports products by rail and loads it onto ships for sea transport at its Porto Trombetas Bauxite Terminal. The company was founded in 1967 and is headquartered in Oriximina, Brazil.

Michelin Corp. develops, manufactures, and sells tires. It offers tires for passenger cars, light-duty and heavy trucks, recreational vehicles, aircrafts, and bicycles. The company was founded on September 4, 1998 and is headquartered in Columbia, SC.

Hexagon Mining Tecnologia e Sistemas SA designs and develops software for the mining industry. Its solutions include automation, process optimization, GPS asset tracking, security monitoring, remote equipment operation, and technical support. The company was founded by Guilherme Bastos Alvarenga and Luiz Thomaz do Nascimento on August 4, 1995 and is headquartered in Belo Horizonte, Brazil.