Companhia Celg de Participacoes Celgpar is a Brazil-based holding company principally engaged in the electric power industry. Through its subsidiaries, the Company is involved in the study, planning, design, building, operation and exploration of electrical energy generation, transmission and distribution systems. As of December 31, 2011, the Company’s subsidiaries were Celg Distribuicao SA and Celg Geracao e Transmissao SA. Celg Distribuicao SA is involved in the electric power transmission and distribution in the Brazilian state of Goias. Celg Geracao e Transmissao SA is primarily engaged in the generation and transmission of electric power. As of December 31, 2011, Celg Geracao e Transmissao SA operated three hydroelectric power plants.