# EDGAR Filing Document

**Accession Number:** 0001937441
**File Stem:** 0002070979-25-000059
**Filing Date:** 2025-11
**Character Count:** 5655
**Document Hash:** fca51b7fc801212c07cbf859af03db5f
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0002070979-25-000059.hdr.sgml**: 20251105

**ACCESSION NUMBER**: 0002070979-25-000059

**CONFORMED SUBMISSION TYPE**: 6-K

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20251104

**FILED AS OF DATE**: 20251105

**DATE AS OF CHANGE**: 20251104

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Ambipar Emergency Response
- **CENTRAL INDEX KEY:** 0001937441
- **STANDARD INDUSTRIAL CLASSIFICATION:** HAZARDOUS WASTE MANAGEMENT [4955]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 000000000
- **STATE OF INCORPORATION:** E9
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 6-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-41638
- **FILM NUMBER:** 251451367

**BUSINESS ADDRESS:**
- **STREET 1:** AVENIDA ANGELICA, N. 2346
- **STREET 2:** 5TH FLOOR, ROOM 4, CONSOLACAO
- **CITY:** SAO PAULO
- **STATE:** D5
- **ZIP:** 01228-200
- **BUSINESS PHONE:** 55-11-3429-5022

**MAIL ADDRESS:**
- **STREET 1:** AVENIDA ANGELICA, N. 2346
- **STREET 2:** 5TH FLOOR, ROOM 4, CONSOLACAO
- **CITY:** SAO PAULO
- **STATE:** D5
- **ZIP:** 01228-200

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**FORM 6-K**

**REPORT OF FOREIGN PRIVATE ISSUER**

**PURSUANT TO RULE 13a-16 OR 15d-16**

**UNDER THE SECURITIES EXCHANGE ACT OF 1934**

**For the month of November 2025**

**Commission File Number: 001-41638**

**AMBIPAR EMERGENCY RESPONSE** 

**(Exact name of registrant as specified in its charter)**

**Avenida Angélica, nº 2346, 5th Floor**

**São Paulo, São Paulo, Brazil, 01228-200**

**Tel: +55 (11) 3526-3526**

**(Address of principal executive office)**

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:

Form 20-F ☒ Form 40-F ☐

**Appointment of Independent Director and formation of Independent Special Committee**

**São Paulo, Brazil – November 4, 2025** – The board of directors of Ambipar Emergency Response (the "Company") appointed, effective October 29, 2025, David Mack to serve as an independent director of the Company.

The board of directors further established an independent special committee (the "Independent Special Committee") with Mr. Mack acting as the sole member. The Independent Special Committee was tasked with (i) identifying and evaluating all matters in which a conflict of interest exists or is reasonably likely to exist between the Company and its related parties and (ii) investigating and evaluating potential claims and causes of action that the Company may hold against any of its related parties.

**About Ambipar Emergency Response**

Ambipar Response specializes in environmental services and operates in six main business units: emergency response, fire response, marine response, medical response, industrial response and environmental response. The Company is present in 41 countries across all six continents, providing standardized services across all regions.

The Company was founded in 1995 by Tércio Borlenghi Jr.

For more information, visit ambipar.com and http://ir-response.ambipar.com/

**Forward-Looking Statements**

This press release contains "forward-looking statements" within the meaning of the "safe harbor" provisions of the Private Securities Litigation Reform Act of 1995. These forward-looking statements are made only as of the date they first issued and are based on current expectations, estimates, forecasts and projections as well as the beliefs and assumptions of management. These statements identify prospective information and may include words such as "believe," "may," "will," "aim," "estimate," "continue," "anticipate," "intend," "expect," "forecast," "plan," "predict," "project," "potential," "aspiration," "objectives," "should," "purpose," "belief," and similar, or variations of, or the negative of such words and expressions, although not all forward-looking statements contain these identifying words.

Forward-looking statements are subject to a number of risks and uncertainties, many of which involve factors or circumstances that are beyond Ambipar Response's control.

Ambipar Response's actual results could differ materially from those stated or implied in forward-looking statements due to a number of factors, including but not limited to: more intense competition than expected, lower addition of new clients, regulatory measures, more investments in our business than expected, and our inability to execute successfully upon our strategic initiatives, among other factors described in "Item 3.D—Key Information--Risk Factors" of Ambipar Response's annual report on Form 20-F for the year ended December 31, 2024 and other public filings it makes with the Securities and Exchange Commission. Ambipar Response does not undertake any obligation to update or revise any forward-looking statements to reflect any change in its expectations with respect to such statements or any changes in events, conditions or circumstances after the date they were made, whether as a result of new information, future events or otherwise, except as may be required under applicable securities laws.

**Investor Relations Contact:**

Email: ir.response@ambipar.com

**SIGNATURE**

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: November 4, 2025

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| | |
|:---|:---|
|  **AMBIPAR EMERGENCY RESPONSE**  | **AMBIPAR EMERGENCY RESPONSE**  |
|  By:  | /s/Thiago da Costa Silva  |
|  Name:  | Thiago da Costa Silva  |
|  Title:  | Director  |

---