ENERGY CO OF MINAS GERAIS

The company operates in the Brazilian power industry, charging regulated customers for their actual energy consumption over 30-day billing periods at specified rates. Large industrial customers are charged based on contractually available energy capacity, with rate adjustments for peak demand consumption and usage exceeding contracted amounts. The rates for energy purchased by the company are determined by contracted capacity and actual volumes used. For the year ended December 31, 2025, the average rate to final customers was R$945.43 per MWh for residential, R$274.61 per MWh for industrial, R$551.01 per MWh for commercial, R$710.93 per MWh for rural, and R$753.53 per MWh for public services and other. Total sales to final customers in 2025 were 15,082 GWh for residential, 18,590 GWh for industrial, 12,350 GWh for commercial, 3,750 GWh for rural, and 2,832 GWh for public services and other. The overall average rate for total sales to final customers was R$588.72 per MWh, generating R$30,969 million in total revenues. Sales to concession holders in 2025 amounted to 20,709 GWh, with an average rate of R$239.56 per MWh, resulting in R$4,961 million in total revenues. CEMIG D's distribution rates undergo a periodic tariff review every five years to re-evaluate manageable costs, including operating costs and fixed asset costs for remuneration and depreciation.