# EDGAR Filing Document

**Accession Number:** 0002120507
**File Stem:** 0002070979-26-000091
**Filing Date:** 2026-3
**Character Count:** 5298
**Document Hash:** a27e3b0f1a3cc6f522927dd43bd9f683
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0002070979-26-000091.hdr.sgml**: 20260317

**ACCESSION NUMBER**: 0002070979-26-000091

**CONFORMED SUBMISSION TYPE**: 3

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260317

**FILED AS OF DATE**: 20260317

**DATE AS OF CHANGE**: 20260317

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Borlenghi Tercio Junior
- **CENTRAL INDEX KEY:** 0002120507

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-41638
- **FILM NUMBER:** 26764185

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** 2330 ANGELICA AV,5TH FLOOR,HIGIENOPOLIS
- **CITY:** SAO PAULO
- **NON US STATE TERRITORY:** SAO PAULO
- **PROVINCE COUNTRY:** D5
- **ZIP:** 01228200
**ISSUER**: 

**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

**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 3

### INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Borlenghi Tercio Junior<br><sub>(Last) (First) (Middle)</sub><br>2330 ANGELICA AV,5TH FLOOR,HIGIENOPOLIS<br><sub>(Street)</sub><br>SAO PAULO, D5 01228200<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>Ambipar Emergency Response [ AMBIQ ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2026-03-17 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director   [ ] 10% Owner<br>[ ] Officer (give title below)   [ ] Other (specify below)<br>_ _ | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities Beneficially Owned

---

|  |  |  |  |
| --- | --- | --- | --- |
| 1. Title of Security | 2. Amount of Securities Beneficially Owned | 3. Ownership Form | 4. Nature of Indirect Beneficial Ownership |

---

## Table II - Derivative Securities Beneficially Owned

---

|  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 3. Title and Amount of Underlying Securities | 3. Title and Amount of Underlying Securities | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| Class B Ordinary Shares | <sup>(1)</sup> | <sup>(1)</sup> | Class A Ordinary Shares | 39234746 | <sup>(1)</sup> | I | See Footnote<sup>(2)</sup> |

---

### Footnotes:

(1) Each Issuer Class B ordinary share (?Class B Share?) is convertible into one Issuer Class A ordinary share (?Class A Shares?) at any time at the election of the holder.  Additionally, each Class B Share will automatically convert into one Class A Share upon the registration of any transfer of such Class B, with certain exceptions.  These conversion rights do not expire.

(2) Reflects securities held by Ambipar Participations & Enterprises S.A., which is controlled by the Reporting Person. The Reporting Person disclaims beneficial ownership of the securities reported herein, except to the extent of such Reporting Person's pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 or any other purpose.

**Signature:** /s/Tercio Borlenghi Junior  
**Date:** 2026-03-17

### Remarks:

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**