CEMIG is a state-controlled Brazilian energy company that generates, transmits, distributes, and sells electricity across multiple states, as well as distributes natural gas and provides energy solutions. The company operates a large portfolio of hydroelectric, solar, and wind generation assets; maintains a high-voltage transmission network; and holds distribution concessions covering most of Minas Gerais, serving millions of regulated customers alongside free-market participants. Revenue comes primarily from energy sales to end customers and wholesale markets, transmission operations and asset utilization fees, distribution system tariffs, gas supply, and infrastructure construction, with additional income from regulatory mechanisms and financial components embedded in long-term contracts.