Companhia Energética de Minas Gerais S.A. (Cemig ADS) is a leading Brazilian energy company primarily engaged in the generation, transmission, distribution and commercialization of electric power. Headquartered in Belo Horizonte, the company operates as a vertically integrated utility, serving residential, commercial and industrial customers across its concession areas. In addition to its core electricity business, Cemig maintains interests in natural gas distribution and distinct energy-related ventures, including renewable sources and infrastructure projects.
In its generation segment, Cemig manages a diversified portfolio that includes hydroelectric, photovoltaic and wind power plants. The transmission division oversees an extensive high-voltage grid linking power stations with distribution networks, while the distribution arm delivers electricity to millions of end users throughout the state of Minas Gerais and select neighboring regions. Through its commercialization unit, Cemig negotiates energy contracts in the regulated and free markets, offering solutions tailored to the needs of large industrial consumers and smaller commercial clients alike.
Founded in 1952 by the government of Minas Gerais, Cemig has grown into one of Brazil’s largest utilities, playing a critical role in regional electrification and infrastructure development. The company’s American Depositary Shares (ADS) trade on the New York Stock Exchange under the ticker CIG, providing international investors with access to its equity. Over the decades, Cemig has also pursued strategic partnerships and acquisitions to expand its footprint within Brazil’s evolving energy landscape.
Committed to sustainability and innovation, Cemig continues to explore initiatives in grid modernization, smart metering and low-carbon technologies. Its efforts are aligned with Brazil’s broader energy transition goals, aiming to enhance operational efficiency and support the integration of intermittent renewable sources. As it advances into new markets, Cemig remains focused on balancing reliable service delivery with environmental stewardship and social responsibility.
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