Ambipar Emergency Response

PROXY STATEMENT

General

The board of directors of Ambipar Emergency Response (the “Company” or “we”) is soliciting proxies for the annual general meeting of shareholders (the “AGM”) of the Company to be held on December 16, 2024 at 10:00 a.m. (Brasilia time). The AGM will be held at Avenida Angélica, nº 2346, 5th Floor, São Paulo, São Paulo, Brazil, 01228-200.

A copy of this proxy statement and our annual report on Form 20-F for the fiscal year ended December 31, 2023 can be accessed, free of charge, on the “Corporate Governance – General Shareholders’ Meeting” section and “Financial Information – SEC Filings” section, respectively, of the Company’s website at https://ir-response.ambipar.com, on the platform hosted by Continental at https://www.cstproxy.com/ambipar/2024 and at the SEC’s website at www.sec.gov.

By inserting the control number to be provided to you on your Notice of Internet Availability of Proxy Materials or proxy card at www.cstproxyvote.com for registered shareholders and at www.proxyvote.com for street shareholders (if your bank, brokerage firm, or other nominee supports www.proxyvote.com and has agreed to provide you with a control number for this purpose), you will have instructions on how to access our proxy materials, and on how to vote via the Internet or by proxy card. If you own shares in street name, meaning that your shares are held by a bank, brokerage firm, or other nominee, you may also instruct that institution on how to vote your shares.

On or about December 6, 2024, we expect to mail to our shareholders a Notice of Internet Availability. See “Internet Availability of Proxy Materials” below.