AMBIPAR EMERGENCY RESPONSE SEC Filings

Ambipar Emergency Response (AMBI) reported a legal update: the Third Business Court of the Capital of Rio de Janeiro approved the judicial recovery proceedings of its parent company, Ambipar Participações e Empreendimentos S.A., on October 30, 2025. The parent’s filing had been previously communicated on October 20, 2025.

Ambipar Emergency Response provides environmental and emergency services across six business units and operates in 41 countries. The company was founded in 1995 by Tércio Borlenghi Jr.

Ambipar Emergency Response announced governance changes. The board appointed David Mack as an independent director, effective October 29, 2025. The board also formed an Independent Special Committee with Mr. Mack as the sole member.

The committee is tasked with identifying and evaluating matters where a conflict of interest exists or may reasonably arise between the Company and its related parties, and with investigating and evaluating potential claims and causes of action the Company may hold against related parties. These steps add an additional layer of independent oversight to address related-party matters.

Ambipar Emergency Response filed a Form 25 to remove its securities from listing and/or registration on NYSE American LLC. The action covers Class A Ordinary Shares and warrants, with each whole warrant exercisable for one Class A ordinary share at an exercise price of $11.50 per share.

The exchange certified compliance with its rules and applicable regulations for striking the class of securities, and the issuer certified compliance with exchange rules and 17 CFR 240.12d2-2(c) for voluntary withdrawal.

Ambipar Emergency Response reported that Brazilian courts expanded legal protections tied to its parent’s restructuring process. The Third Business Court of Rio de Janeiro extended the interim relief granting a temporary stay on proceedings against Ambipar Participações e Empreendimentos S.A. and Environmental ESG Participações S.A. until facts the court deems necessary are clarified, so it can rule on the admissibility of their Judicial Recovery.

Separately, the 21st Private Law Court recognized that court’s jurisdiction and granted additional emergency measures to help maintain operations. These measures direct counterparties to:

• Continue supplying essential goods and services.
• Refrain from executing fiduciary guarantees or appropriating group financial assets.
• Suspend clauses that authorize termination of essential contracts.
• Refrain from declaring early maturity of debts not subject to the Judicial Recovery and from seizing or blocking related assets.
• Allow continued use of leased or rented equipment named in the proceedings.

Ambipar Emergency Response reported a board change. On October 23, 2025, Mariana Loyola Ferreira Sgarbi resigned as a member of the Board of Directors. The company stated it is evaluating the appointment of an independent director to fill the vacancy in line with its Amended and Restated Articles of Association.

Ambipar Response provides environmental and incident services across six business units—emergency, fire, marine, medical, industrial, and environmental response—and operates in 41 countries across all six continents.

Ambipar Emergency Response (AMBI) announced NYSE American will commence delisting proceedings for its ordinary shares and warrants. The company received a notice from NYSE Regulation on October 22, 2025 stating it is no longer suitable for listing under Section 1003(c)(iii) of the NYSE American Company Guide, following Ambipar’s disclosure on October 21, 2025 of a Chapter 11 filing in the U.S. Bankruptcy Court for the Southern District of Texas.

The company is considering whether to request a review of the determination by a Committee of the Exchange’s Board of Directors. The notice does not affect business operations or reporting obligations under SEC rules.

Ambipar Emergency Response reported that on October 20, 2025 its parent, Ambipar Participações e Empreendimentos S.A., and Environmental ESG Participações S.A. filed a request for judicial recovery with the Third Business Court of the Capital of Rio de Janeiro. On the same date, the Company filed a concurrent action under Chapter 11 with the United States Bankruptcy Court for the Southern District of Texas, Houston Division.

The Company states it is maintaining normal operations across its six service units and geographies, emphasizing service continuity, employee mobilization, and ongoing customer support. Management characterizes the court-supervised processes as a responsible and transparent step for the Ambipar Group. The Company plans to keep shareholders informed as developments occur.

Ambipar Emergency Response reports that its parent, Ambipar Participaes e Empreendimentos S.A., and Environmental ESG Participaes S.A. filed for court-supervised insolvency protection and on September 24, 2025 obtained an interim injunction granting a temporary stay of proceedings that covers subsidiaries, including Ambipar Emergency Response. A translation of the disclosed material fact is furnished as Exhibit 99.1. The filing reiterates the company's business scope: environmental services across six units (emergency, fire, marine, medical, industrial and environmental response) operating in 41 countries. Contact and investor relations information are provided.