Sílvio Tini de Araújo

Nexa Recursos Minerais SA engages processing of zinc and mining services. The company was founded on January 22, 1975 and is headquartered in Tres Marias, Brazil.

Part of Paranapanema SA, Caraiba Metais SA is a Brazilian company that produces copper alloys. The private company is based in Dias d'Avila, Brazil.

Eluma SA Indústria e Comércio produces, develops and manufactures semi-elaborated copper and its alloys, tubes seamless, laminates, bars and wires. The Copper products include connectors, contacts, coaxial cables, wave guides, circuit breakers, electric-electronic terminals, engine joints, radiator fins, heat exchangers, gutters, roofs, solar manifolds, alembics, decorative objects and home appliances. The Brass products include ammunition, connectors, contacts, bulb sockets, toilet metal fixtures, hinges, printery, radiators, trays, jewelry, belts, buttons, eyelets, musical instruments and decorative objects. The Bronze products include pressure gauge tubes, diaphragms, printery, connectors, terminals, spring-effect contacts, musical instruments. The company was founded on February 13, 1943 and is headquartered in Santo André, Brazil.

Brasil Ecodiesel SA produces and imports biodiesel. It produces sugar, ethanol and vegetable oils. It operates in renewable energy and food sectors. The company was founded in March, 2003 and is headquartered in São Paulo, Brazil.

Saint Gobain Canalizacao SA is a Brazilian company that manufactures and sells cast iron pipes, valves and fittings.