Nexa Resources SA
Mr. Boletta has over 30 years of experience with operations. He joined Votorantim Metais S.A. in 1986, having served in several production areas. Between 2010 and 2011, he was responsible for the design review of an aluminum smelter in Trinidad and Tobago. Mr. Boletta graduated with a degree in electrical engineering from the Federal University of Itajubá, UNIFEI in 1985 and holds an MBA from FGV.
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Nexa Resources SA
Nexa Resources SA, formerly VM Holding SA, is a Luxembourg-based company engaged in the mineral resources industry. The Company is a metals and mining entity mainly engaged in zinc content production, and whose product portfolio also includes copper, lead, silver and gold. Its mining and smelting presence is located in Brazil, conducted by Votorantim Metais Zinco SA, and in Peru, conducted by Compania Minera Milpo SAA, and Votorantim Metais-Cajamarquilla SA. Its controlling shareholder is Votorantim SA, a Brazilian privately owned industrial conglomerate that holds ownership interests in metal, steel, cement, energy and pulp companies, among others.