Notice on Related-Party Transactions - Ecovias das Gerais

Name of Related Parties and Relations with the Company

• Concessionária Ecovias das Gerais S.A. ("Ecovias das Gerais" or "Concessionaire"): Indirect subsidiary of the Company;

• Ecorodovias Concessões e Serviços S.A. ("ECS"): Direct subsidiary of the Company;

• Consórcio Instalações S-M ("Contracted Consortium"), in which Sinelec Brasil Ltda. holds a 70% interest;

• Sinelec Brasil Ltda. ("Sinelec");

Sinelec is indirectly controlled by ASTM, which is the indirect controlling shareholder of the Company, holding 52.7% of EcoRodovias' capital stock.

Objects of the Agreements

• The object of the Service Provision and Materials Supply Agreement -IDCT17291, entered into by Ecovias das Gerais, ECS and the Contracted Consortium, is the supply and implementation of Multi Lane Free Flow (MLFF) gantries and combined Multi Lane Free Flow and High-Speed Weigh-in-Motion (HS-WIM) gantries at the Concessionaire, covering all materials, equipment, software, technical services, construction, and other components necessary for their complete implementation and commencement of operations ("Implementation Agreement").

• The object of the Service Agreement - IDCT17292, entered into by Ecovias das Gerais, ECS, and Sinelec, is the provision of services of maintenance on the SINELEC Software for the operation of the activated gantries, relating to the licenses for Multi Lane Free Flow (MLFF) and High-Speed Weigh-in-Motion (HS-WIM) gantries of Ecovias das Gerais ("Software Maintenance Agreement," and, together with the "Implementation Agreement," "Agreements").

Main Terms and Conditions

Termination Date of the Implementation Agreement: November 30, 2036. Termination Date of the Software Maintenance Agreement: November 30, 2031.

Value of the Implementation Agreement: One hundred nine million, one hundred sixty-six thousand, six hundred twenty-nine reais and sixty-three centavos (R$109,166,629.63).

Value of the Software Maintenance Agreement: Four million, six hundred nine thousand, nine hundred and twenty reais (R$4,609,920.00).

The Implementation Agreement will be adjusted by the lowest index among the IPCA, INPC, and IGP-M.

The Software Maintenance Agreement will be adjusted by the IPCA.

Reasons why the Company's management considers that the transactions were carried out on an arm's length basis or establish adequate compensation

The Management considers that the transactions were carried out on an arm's length basis because: (i) the rules established in the Policy on Related-Party Transactions, as available on the Company's Investor Relations website, were followed; and (ii) the contractual conditions are in accordance with market practices (e.g., general clauses usually adopted in contracts signed by the Company for the type of contract and nature of the obligations).

Information on potential participation of the counterparty, its partners or members of management in the Company's decision-making process regarding the transactions or in negotiations relating to the transactions as representatives of the Company, describing such participation

The Company informs that, following the Audit Committee's recommendation, the Agreements were presented to and approved by the Board of Directors, with the abstentions of the conflicted directors duly recorded.

Subsequently, the Agreements were discussed and approved at meetings held by the Boards of Directors of Ecovias das Gerais and ECS.