Mr. Carvalho is a Brazilian senior mineral economist. In addition to his extensive research on Brazilian mining industry matters he has a robust background in quantitative techniques, economic evaluation and cost & benefit analysis applied to environmental assessment.

Ph.D. - Mineral Economics - Imperial College of Science, Technology and Medicine, Royal School of Mines, London, U.K., 1991;

M.Sc. - Economics of Natural Resources - University of Aberdeem, U.K., 1979;

Specialization - Mineral Economics - Getulio Vargas Foundation - FGV, Rio de Janeiro, Brazil. 1973;

B.Sc. - Statistical Science - Federal University of Ceará, Fortaleza, Brazil. 1970.

Independent Consultant. 1978 - Present;

On behalf of his consulting activities, he had given advice to many institutional clients, such as: BIRD, National Department of Mineral Production, Brazilian Institute of Mining, Brazilian Geological Survey, Planning Secretary of Ceará State, Mineral Research Company of Bahia State, Development Company of Mineral Resources of Paraíba State, Federation of Industries of Ceará State, Industrial Development Company of Rio Grande do Norte State;

Professor of Economics of Natural Resources and Implementation & Evaluation of Projects with Department of Applied Economics (CAEN) of Federal University of Ceará - UFC. 1994/1998;

Professor of Mineral Economics and Mineral Resources of Brazil with Department of Geology and Mining of Federal University of Paraíba - UFPB. 1977/1993;

Mineral Economist of National Department of Mineral Production - DNPM. 1973/1977;

Officer of Northeast Bank of Brazil. 1968/1972;

Extensive number of published articles and reports focusing on different aspects of Brazilian mineral sector.