Duke Energy International, Geração Paranapanema S.A. (BOVESPA:GEPA4) and DEB – Pequenas Centrais Hidrelétricas, both owned by Duke Energy Corporation (NYSE:DUK) have drawn the interest of a number of potential bidders, Mergermarket reported. Potential suitors include Companhia Energética de Minas Gerais S.A. (BOVESPA:CMIG4), Tractebel Energia S.A. (BOVESPA:TBLE3), Companhia Paranaense de Energia (BOVESPA:CPLE6), Centrais Elétricas Brasileiras S.A. - Eletrobras (BOVESPA:ELET6) and Equatorial Energia S.A. (BOVESPA:EQTL3).