Ambipar Emergency Response

proxy statement are available at https://www.cstproxy.com/ambipar/2024. PROXY & FOLD HERE• 00 NOT SEPARATE• lNSERT lN E.NVE.LOPE PROVIDED &

AMBIPAR EMERGENCY RESPONSE The undersigned appoints Tercio Bor1enghi Junior and Alessandra Sessa Alves de Melo, and each of them, as proxies, each with the power to appoint his substitute, and authorizes each of them to represent and to vote, as designated on the reverse hereof, all of the shares of common stock of Ambipar Emergency Response held of reoord by the undersigned at the close of business on November 26, 2024 at the Annual Meeting of Stockholders of Ambipar Emergency Response to be held on December 16, 2024, or at any adjournment thereof. THIS PROXY WHEN PROPERLY EXECUTED WILL BE VOTED AS INDICATED. IF NO CONTRARY INDICATION IS MADE, THE PROXY WILL BE VOTED IN FAVOR OF RATIFYING AND APPROVING FINANCIAL STATEMENTS AND THE AUDITOR'S REPORT FOR THE FISCAL YEAR ENDED DECEMBER 31, 2023, AND IN ACCORDANCE WITH THE JUDGMENT OF THE PERSONS NAMED AS PROXY HEREIN ON ANY OTHER MATTERS THAT MAY PROPERLY COMEBEFORE THEANNUAL MEETING. THIS PROXY IS SOLICIT­ ED ON BEHALF OF THE BOARD OF DIRECTORS. (Continued and to be marked, dated and signed, on reverse side)