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Copasa Shares Enter Ibovespa B3, Boost Visibility in the Market and Rekindle Discussions About Privatization in Minas Gerais.
Starting this Monday (5), Copasa will become part of the new portfolio of Ibovespa B3, the main indicator of the Brazilian stock market.
The inclusion occurs at a strategic moment for the state-owned company, marked by discussions about Privatization, new billion-dollar investments, and recognition in sustainability indices like ICO2 B3.
The change was confirmed in the third preliminary index, released on December 23, 2025, and will be valid until April 30 of this year.
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With a weight of 0.351% in the portfolio, Copasa becomes the tenth representative among Mining Companies listed on Ibovespa B3.
The index, which includes the most traded shares on the Brazilian stock exchange, now consists of 82 assets from 79 companies.
What Changes With Copasa’s Entry Into Ibovespa B3
In addition to the inclusion of Copasa’s common shares, B3 confirmed only one additional change in the portfolio: the exit of CVC Brasil, also with ON shares.
According to the exchange itself, the central criterion for the composition of Ibovespa B3 is liquidity, meaning the ease with which a stock can be bought or sold in the market without significant price fluctuations.
This point is relevant because the index serves as a benchmark for various financial products.
Among them are Exchange Traded Funds (ETFs), funds traded on the exchange that replicate the performance of Ibovespa B3.
Thus, Copasa’s presence tends to increase the company’s visibility among institutional and foreign investors.
Entry Occurs After Sanction of Law Authorizing Privatization
While Copasa expands its presence in the financial market, the debate over Privatization gains momentum in Minas Gerais.
The entry into Ibovespa B3 happens less than a month after Governor Romeu Zema sanctioned Law No. 25.664/2025.
The aim of the legislation is to direct the resources obtained from the operation to amortize Minas’ debt with the Union or for other obligations outlined in the States’ Full Debt Payment Program (Propag), an initiative of the federal government.
The subject divides opinions but places Copasa at the center of discussions about the future of state-owned companies in Minas.
Billion-Dollar Investments Reinforce the Company’s Strategy
Alongside the political landscape, Copasa presented a robust investment plan. The state-owned company plans to invest R$ 3.1 billion in 2026 and another R$ 17.9 billion between 2027 and 2030.
In total, the planned investment amounts to about R$ 21 billion, primarily focused on expanding and modernizing sanitation services in Minas Gerais.
This volume of investments reinforces the company’s relevance both for the state economy and for the capital markets.
Mining Companies Stand Out in the Main Index of the Stock Exchange
In addition to Copasa, another nine Mining Companies have shares in the Ibovespa B3 portfolio.
Among them, Localiza&Co stands out with the highest weight, totaling 1.816% in common shares and 0.065% in preferred shares.
The list also includes names like Companhia Energética de Minas Gerais, Grupo Energisa, CSN Mineração, Cogna Educação, Direcional Engenharia, Azzas 2154, Usiminas, and MRV.
The significant presence of companies based in Minas reinforces the importance of the state in the Brazilian stock market and highlights the diversity of represented sectors, such as energy, mining, education, construction, and sanitation.
Copasa Also Advances in Sustainability with Entry into ICO2 B3
In addition to Ibovespa B3, Copasa will also join another seven indices of B3, including the ICO2 B3, a national reference in environmental practices and energy transition.
The indicator brings together companies with the best performance in greenhouse gas (GHG) emission management and sustainable policies.
According to the state-owned company, Copasa leads the ranking of the water and sanitation sector in emission management efficiency, with an emission/revenue coefficient of 0.08532.
“This achievement positions the company as a reference in the sector, aligned with global energy transition goals and the Paris Agreement.”
The company also achieved 66 points in the Emission Management Score (SGEE), above the segment average of 61.44.
“These results reinforce the company’s leadership in climate management and its ability to drive sustainable initiatives in the basic sanitation sector,” says thistal.
By doing so, Copasa consolidates its position in the market, balancing financial growth, the debate on Privatization, and environmental commitment.
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