23. Brumadinho dam failure

In January 2019, a tailings dam (“Dam I”) experienced a failure at the Córrego do Feijão mine, in the city of Brumadinho, state of Minas Gerais, Brazil. The failure released a flow of tailings debris, destroying some of Vale’s facilities, affecting local communities and disturbing the environment. The tailings released have caused an impact of around 315 km in extension, reaching the nearby Paraopeba River. The dam failure in Brumadinho (“event”) resulted in 270 fatalities or presumed fatalities and caused extensive property and environmental damage in the region.

As a result of the dam failure, the Company recognized provisions to meet its assumed obligations, including indemnification to those affected by the event, remediation of the impacted areas and compensation to the society. In addition, the Company has incurred expenses, which have been recognized straight to the income statement, in relation to tailings management, communication services, humanitarian assistance, payroll, legal services, water supply, among others.

Effects in income statements

Changes in the provision in the period

The cash flow for obligations are estimated for an average period ranging from 5 to 7 years and were discounted to the present value at a rate in real terms, which increased from 7.88% on December 31, 2024, to 8.51% on June 30, 2025.

On February 4, 2021, the Company entered into a Judicial Settlement for Integral Reparation (“Global Settlement”), which was under negotiations since 2019, with the State of Minas Gerais, the Public Defender of the State of Minas Gerais and the Federal and the State of Minas Gerais Public Prosecutors Offices, to repair the environmental and social damage resulting from the Dam I rupture. As a result of the Global Settlement, the requests for the reparation of socioenvironmental and socioeconomic damages caused by the dam failure were substantially resolved.

The Global Settlement includes: (i) payment obligations, of which the funds will be used directly by the State of Minas Gerais and Institutions of Justice for socioeconomic and socioenvironmental compensation projects; (ii) socioeconomic projects in Brumadinho and other municipalities; and (iii) compensation of the environmental damage caused by the dam failure. These obligations are projected for an average period of 5 years.

In addition, the Global Settlement addresses the diffuse and collective socioeconomic damages resulting from the disaster, with the exception of supervening damages, individual damages and homogeneous individual damages of a divisible nature, in accordance with the claims of the lawsuits not extinguished by the Global Settlement.

For the measures described in items (i) and (ii), the amounts are specified in the Global Settlement. For the execution of the environmental recovery, actions has no cap limit, despite having been estimated in the Global Settlement due to the Company's legal obligation to fully repair the environmental damage caused by the dam failure. Therefore, although Vale is monitoring this provision, the amount recorded could materially change depending on several factors that are not under the Company’s control.

The Company is also working to ensure geotechnical safety of the remaining structures at the Córrego do Feijão mine, in Brumadinho, and the removal and proper disposal of the tailings of Dam I, including dredging part of the released material and de-sanding from the channel of the river Paraopeba.

For the individual indemnification, Vale and the Public Defendants of the State of Minas Gerais formalized an agreement on April 5, 2019, under which those affected by the Brumadinho’s dam failure may join an individual or family group out-of-court settlement agreements for the indemnification of material, economic and moral damages. This agreement establishes the basis for a wide range of indemnification payments, which were defined according to the best practices and case law of Brazilian Courts, following rules and principles of the United Nations.

a) Legal Proceedings

Vale is defending itself against a class action brought before a Federal Court in New York and filed by holders of securities - American Depositary Receipts ("ADRs") - issued by Vale.

In 2024, there was a hearing with the Judge to consider Motion for Class Decertification filed by Vale and oral arguments on the relevance of expert opinions presented by the Plaintiffs' experts. A decision from the Court on Vale's requests is currently pending.

In November 2021, a new complaint was filed by eight investment funds that chose to seek redress for alleged damages independently and separately from the class members of the main action, with the same allegations presented in the main class action. A decision from the Court on Vale's preliminary defense ("motion to dismiss") is pending since December 2023.

The likelihood of loss of these proceedings is considered possible. However, considering the current phase of these lawsuits, it is not yet possible to reliably estimate the amount of a potential loss. The amount of damages sought in these claims is unspecified.

In Brazil, Vale is a defendant in one arbitration filed by 385 minority shareholders and three arbitrations filed by foreign investment funds. Vale was also a defendant in two arbitrations filed by a class association allegedly representing all Vale’s noncontrolling shareholders, which were dismissed in August 2024.

In the four ongoing proceedings, the claimants argue that Vale was aware of the risks associated with the dam and failed to disclose it to its shareholders. Based on such argument, they claim compensation for losses caused by the decrease in share price.

The expectation of loss is classified as possible for the four procedures and, considering the initial phase, it is not possible at this time to reliably estimate the amount of a possible loss.

In one of the proceedings filed by foreign legal entities, the Claimants initially estimated the amount of the alleged losses would be approximately US$330 (R$1,800 million), subject to interest and monetary adjustments. In another proceeding filed by foreign legal entities, the Claimants initially estimated the amount of the alleged losses would be approximately US$715 (R$3,900 million), subject to interest and monetary adjustments. In the procedure presented by minority shareholders, the applicants estimated the alleged losses at approximately US$550 (R$3,000 million), subject to interest and monetary adjustments, which could be increased later, as alleged by the applicants.

The Company disagrees with the ongoing proceedings and understands that, in this case and at the current stage of the proceedings, the probability of loss in the amount claimed by the claimants is remote.