6-K
Ambipar Emergency Response (AMBIQ)
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 August, 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 ☐
Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):
Yes ☐ No ☒
Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule101(b)(7):
Yes ☐ No ☒
1
Ambipar Parent released results for the second quarter of 2025.
Ambipar Emergency Response informs the market that on August 14, 2025, its parent company, Ambipar Participações e Empreendimentos S.A. (“Ambipar Parent”), announced its results for the second quarter of 2025.
Excerpts of this announcement relating to Ambipar Emergency Response (the “Company”) are furnished as Exhibit 99.1 to this Report on Form 6-K. Financial information relating to the Company contained therein has not been audited or reviewed in accordance with the standards of the Public Company Accounting Oversight Board (PCAOB) or any other auditing standards. While such financial information has been prepared in good faith and based on information available at the time of preparation, no assurance can be made that actual results will not change as a result of the Company’s management review of results and other factors. The Company’s results for the second quarter of 2025 are subject to finalization and closing of the Company’s accounting books and records (which have yet to be performed) and should not be viewed as a substitute for financial statements prepared in accordance with IFRS. Accordingly, you should not place undue reliance upon the financial information contained in Exhibit 99.1. While we do not expect that such financial information will differ materially from the Company’s actual results for the second quarter of 2025, we cannot assure you that such financial information will be indicative of the Company’s actual financial results for the second quarter of 2025 or for any future periods.
2
EXHIBIT INDEX
| Exhibit No. | Description of Exhibit |
|---|---|
| 99.1 | Press Release of Ambipar Emergency Response dated August 15, 2025. |
3
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: August 15, 2025
| AMBIPAR EMERGENCY RESPONSE | |
|---|---|
| By: | /s/Thiago da Costa Silva |
| Name: | Thiago da Costa Silva |
| Title: | Director |
Exhibit 99.1
AMBIPAR PARTICIPAÇÕES E EMPREENDIMENTOS S.A. - EARNINGS RELEASE 2Q25
RESPONSE SEGMENT
2Q25 HIGHLIGHTS
Net Revenue
| (R$ MM) | 2Q24 | 1Q25 | 2Q25 | 6M24 | 6M25 | Var. <br>2Q25 2Q24 | Var. <br>2Q25 1Q25 | Var. <br>6M25 6M24 |
|---|---|---|---|---|---|---|---|---|
| Net revenue | 740.5 | 811.0 | 738.8 | 1,419.6 | 1,549.8 | (0.2%) | (8.9%) | 9.2% |
| Brazil | 359.1 | 344.3 | 385.3 | 653.5 | 729.5 | 7.3% | 11.9% | 11.6% |
| North America | 296.5 | 358.4 | 256.5 | 600.1 | 614.9 | (13.5%) | (28.4%) | 2.5% |
| Europe | 38.0 | 63.0 | 51.8 | 78.1 | 114.7 | 36.3% | (17.8%) | 46.9% |
| LatAm ( Ex Brazil) | 46.9 | 45.4 | 45.2 | 87.8 | 90.6 | (3.5%) | (0.3%) | 3.2% |
Net revenue reached R$738.8 million in 2Q25, stable compared to 2Q24, with good performance by Brazil and Europe.
The Response segment continues to demonstrate its ability to generate revenue on a global scale, offering preventive and emergency services aligned with the demands of clients operating in international value chains. In North America, we are implementing a new project to optimize operations, costs, and results.
The opportunity to replicate Response's business model in international geographies, while challenging and long-term, has progressed positively. This quarter, we delivered consistent results in Brazil and LatAm.
Brazil
| Brazil | 2Q24 | 1Q25 | 2Q25 | Var. <br>2Q25 2Q24 | Var. <br>2Q25 1Q25 | |
|---|---|---|---|---|---|---|
| Subscription | R$ mm | 71.8 | 55.6 | 56.7 | (21.0%) | 2.0% |
| Field Services | R$ mm | 323.0 | 317.2 | 363.0 | 12.4% | 14.4% |
| High Impact Emergencies | R$ mm | 9.5 | 20.0 | 6.7 | (29.8%) | (66.6%) |
| Gross Revenue | R$ mm | 404.3 | 392.8 | 426.3 | 5.5% | 8.5% |
| Hours and Labor | ||||||
| Labor | # people | 5.105 | 5,537 | 5,062 | (0.8%) | (8.6%) |
| Available Hours | thousand hours | 3,369.3 | 3,654.6 | 3,340.9 | (0.8%) | (8.6%) |
| Hours Worked | thousand hours | 2,361.8 | 2,971.6 | 2,830.5 | 19.8% | (4.7%) |
| Field Service Hours | thousand hours | 2,360.2 | 2,961.9 | 2,829.4 | 19.9% | (4.5%) |
| Hours in High Impact Emergencies | thousand hours | 1.6 | 9.8 | 1.1 | (30.8%) | (88.4%) |
| Utilization Rate | % | 70.1% | 81.3% | 84.7% | 14.6 p.p. | 3.4 p.p. |
| Revenue per Hour | ||||||
| Field Services | R$/h | 136.8 | 107.1 | 128.3 | (6.3%) | 19.8% |
| High Impact Emergencies | R$/h | 5,839.0 | 2,049.5 | 5,923.4 | 1.4% | 189.0% |
| Revenue Per Hour | R$/h | 171.2 | 132.2 | 150.6 | (12.0%) | 13.9% |
Net revenue in Brazil grew 7.3% and 11.9% compared to 2Q24 and 1Q25, respectively. The region reached a utilization rate of 84.7%, an increase of 3.4 p.p. compared to 1Q25.
1
During the quarter, we observed growth in field service calls, while the main response to High Impact Emergencies occurred in the Oil and Gas sector using a fire-fighting robot.
The use of technology has also been highlighted for cleaning and maintenance of hazardous environments, where we have increased the implementation of drones and robots that perform inspection and cleaning with greater speed, higher average ticket, lower risk for operators, and lower costs for customers. Our customers have competed for safety awards for this solution.
LatAm
| LatAm | 2Q24 | 1Q25 | 2Q25 | Var. <br>2Q25 2Q24 | Var. <br>2Q25 1Q25 | |
|---|---|---|---|---|---|---|
| Subscription | R$ mm | 7.3 | 7.0 | 7.2 | (2.1%) | 1.9% |
| Field Services | R$ mm | 48.1 | 45.5 | 48.2 | 0.1% | 5.8% |
| High Impact Emergencies | R$ mm | 0.0 | 0.0 | 0.0 | NM | NM |
| Gross Revenue | R$ mm | 55.5 | 52.6 | 55.4 | (0.2%) | 5.3% |
| Hours and Labor | ||||||
| Labor | # people | 844 | 849 | 840 | (0.5%) | (1.1%) |
| Available Hours | thousand hours | 557.0 | 560.3 | 554.4 | (0.5%) | (1.1%) |
| Hours Worked | thousand hours | 457.1 | 476.9 | 438.2 | (4.1%) | (8.1%) |
| Field Service Hours | thousand hours | 457.1 | 476.9 | 438.2 | (4.1%) | (8.1%) |
| Hours in High Impact Emergencies | thousand hours | 0.0 | 0.0 | 0.0 | NM | NM |
| Utilization Rate | % | 82.1% | 85.1% | 79.0% | (3.0 p.p.) | (6.1 p.p.) |
| Revenue Per Hour | ||||||
| Field Services | R$/h | 105.3 | 95.5 | 110.0 | 4.4% | 15.2% |
| High Impact Emergencies | R$/h | 0.0 | 0.0 | 0.0 | NM | NM |
| Revenue Per Hour | R$/h | 121.4 | 110.3 | 126.4 | 4.1% | 14.6% |
Net revenue decreased 3.5% compared to 2Q24 due to a lower utilization rate of 3.0 p.p., to 79.0% compared to 2Q24.
As in 1Q25, the Company increased field service revenues by performing higher value-added services, reflected in a 4.1% higher revenue per hour.
The headcount optimization process linked to the Conecta Project, which, in March 2025, began reducing staff by unifying the Environment and Response back offices in the region.
Europe
| Europe | 2Q24 | 1Q25 | 2Q25 | Var. <br>2Q25 2Q24 | Var. <br>2Q25 1Q25 | |
|---|---|---|---|---|---|---|
| Subscription | R$ mm | 3.1 | 1.0 | 0.9 | (69.2%) | (5.0%) |
| Field Services | R$ mm | 42.2 | 68.7 | 63.0 | 49.3% | (8.2%) |
| High Impact Emergencies | R$ mm | 5.4 | 4.4 | 0.8 | (86.0%) | (82.8%) |
| Gross Revenue | R$ mm | 50.7 | 74.1 | 64.7 | 27.6% | (12.6%) |
| Hours and Labor | ||||||
| Labor | # people | 132 | 139 | 132 | 0.0% | (4.8%) |
| Available Hours | thousand hours | 87.1 | 91.5 | 87.1 | 0.0% | (4.8%) |
| Hours Worked | thousand hours | 63.9 | 66.0 | 74.5 | 16.7% | 12.8% |
| Field Service Hours | thousand hours | 63.5 | 63.8 | 74.1 | 16.7% | 16.3% |
| Hours in High Impact Emergencies | thousand hours | 0.3 | 2.3 | 0.4 | NM | (82.8%) |
| Utilization Rate | % | 73.3% | 72.1% | 85.5% | 12.2 p.p. | 13.4 p.p. |
| Revenue per hour | ||||||
| Field Services | R$/h | 664.4 | 1,077.2 | 850.3 | 28.0% | (21.1%) |
| High Impact Emergencies | R$/h | 15,989.2 | 1,946.3 | 1,946.3 | (87.8%) | NM |
| Revenue Per Hour | R$/h | 794.0 | 1,122.1 | 868.7 | 9.4% | (22.6%) |
Net revenue grew 36.3% compared to 2Q24, driven by increases in field services and a utilization rate of 85.5%. The region has increased its cross-selling capacity by selling routine emergency response and industrial cleaning services and continues to work on international waters for oil spill containment.
2
In industrial cleaning, we are enhancing our capabilities on robotic cleaning, among other industrial services.
In High Impact Emergencies, we concluded our response in May to an incident in the North Sea involving a collision between two ships that began in late 1Q25. After the fire was fully contained, our teams worked onboard the vessel, conducting HAZMAT monitoring and treating chemical waste.
North America
| North America | 2Q24 | 1Q25 | 2Q25 | Var. <br>2Q25 2Q24 | Var. <br>2Q25 1Q25 | |
|---|---|---|---|---|---|---|
| Subscription | R$ mm | 25.7 | 24.2 | 24.1 | (6.5%) | (0.5%) |
| Field Services | R$ mm | 254.6 | 336.2 | 234.3 | (8.0%) | (30.3%) |
| High Impact Emergencies | R$ mm | 18.2 | 0.0 | 0.0 | NM | NM |
| Gross Revenue | R$ mm | 298.5 | 360.4 | 258.3 | (13.5%) | (28.3%) |
| Hours and Labor | ||||||
| Labor | # people | 1,271 | 1.311 | 1.112 | (12.5%) | (15.2%) |
| Available Hours | thousand hours | 838.9 | 865.5 | 733.9 | (12.5%) | (15.2%) |
| Hours Worked | thousand hours | 527.6 | 656.9 | 491.5 | (6.8%) | (25.2%) |
| Field Service Hours | thousand hours | 512.7 | 656.9 | 491.5 | (4.1%) | (25.2%) |
| Hours in High Impact Emergencies | thousand hours | 14.9 | 0.0 | 0.0 | NM | NM |
| Utilization Rate | % | 62.9% | 75.9% | 67.0% | 4.1 p.p. | (8.9 p.p.) |
| Revenue per hour | ||||||
| Field Services | R$/h | 496.5 | 511.9 | 476.6 | (4.0%) | (6.9%) |
| High Impact Emergencies | R$/h | 1,222.0 | 0.0 | 0.0 | NM | NM |
| Revenue Per Hour | R$/h | 565.7 | 548.7 | 525.5 | (7.1%) | (4.2%) |
As we announced last quarter, we have recruited a new president for the region with extensive industrial experience and over 20 years of experience in the North American market. His focus is on prospecting large, long-term contracts, optimizing costs, strengthening the regional team, and evolving governance in the region.
Net revenue in North America decreased by 13.5% versus 2Q24, reflecting a mixed effect, with positive performance mainly in the USA in Field Services, on the other hand, a cooling of operations in Canada for industrial services.
The utilization rate in the region reached 67.0%, an increase of 4.1 p.p. and a reduction of 8.9 p.p. compared to 2Q24 and 1Q25, due to a mixed impacts of headcount optimization and lower utilization in Canada.
Cost breakdown
| R$ MM | 2Q24 | 1Q25 | 2Q25 | 6M24 | 6M25 | Var. <br>2Q25 2Q24 | Var. <br>2Q25 1Q25 | Var. <br>6M25 6M24 |
|---|---|---|---|---|---|---|---|---|
| Personnel | 322.4 | 391.2 | 374.5 | 618.8 | 765.7 | 16.1% | (4.3%) | 23.7% |
| Third parties | 106.9 | 83.9 | 80.2 | 201.8 | 164.1 | (25.0%) | (4.4%) | (18.7%) |
| Maintenance | 30.9 | 22.0 | 23.3 | 57.2 | 45.3 | (24.7%) | 5.8% | (20.8%) |
| Travels | 18.6 | 18.5 | 20.5 | 31.7 | 39.0 | 10.0% | 10.5% | 23.3% |
| Freight | 1.1 | 1.3 | 1.4 | 2.1 | 2.7 | 22.1% | 4.3% | 26.6% |
| Rentals | 0.0 | 0.1 | 0.1 | 0.2 | 0.2 | NM | 11.0% | 31.2% |
| Fuel | 17.7 | 25.3 | 22.6 | 36.0 | 47.9 | 27.6% | (10.6%) | 33.0% |
| Materials | 11.2 | 18.3 | 17.3 | 23.6 | 35.6 | 54.8% | (5.5%) | 50.9% |
| Telecommunications | 5.3 | 4.9 | 6.1 | 8.6 | 11.1 | 15.7% | 23.5% | 28.7% |
| Marketing | 7.5 | 2.7 | 2.9 | 10.4 | 5.5 | (62.0%) | 6.7% | (46.7%) |
| Taxes | 6.7 | 7.5 | 8.3 | 9.8 | 15.9 | 24.8% | 10.5% | 62.1% |
| Others | 11.9 | 13.6 | (52.8) | 35.2 | (39.2) | NM | NM | NM |
| Total Cost | 540.3 | 589.5 | 504.4 | 1,035.3 | 1,093.9 | (6.6%) | (14.4%) | 5.7% |
3
This quarter, costs fell 6.6% compared to 2Q24. Costs behaved in line with the business mix and operational growth, with an increase mainly in the Personnel line due to the growth in operations.
The variation in the others line considers a gain of R$74 million, arising from a reversal of a portion due to an acquisition in North America.
Compared to 1Q25, costs went down by 14.4%, because of the start of work optimizing resources and reducing costs.
CAPEX Response
| CAPEX Response (R$ MM) | 2Q24 | 1Q25 | 2Q25 | 6M24 | 6M25 | Var. <br>2Q25 2Q24 | Var. <br>2Q25 1Q25 | Var. <br>6M25 6M24 |
|---|---|---|---|---|---|---|---|---|
| Maintenance | 22.7 | 49.6 | 29.0 | 69.9 | 78.6 | 27.5% | (41.6%) | 12.5% |
| % Net Revenue Response | 3.1% | 6.1% | 3.9% | 4.9% | 5.1% | 0.9 p.p. | (2.2 p.p.) | 0.2 p.p. |
| Expansion | 26.7 | 29.1 | 22.2 | 41.5 | 51.3 | (16.9%) | (23.5%) | 23.6% |
| % Net Revenue Response | 3.6% | 3.6% | 3.0% | 2.9% | 3.3% | (0.6 p.p.) | (0.6 p.p.) | 0.4 p.p. |
| Capex Response Total | 49.5 | 78.7 | 51.2 | 111.4 | 129.9 | 3.5% | (34.9%) | 16.6% |
| % Net Revenue Response | 6.7% | 9.7% | 6.9% | 7.8% | 8.4% | 0.2 p.p. | (2.8 p.p.) | 0.5 p.p. |
| Regional segmentation | 2Q24 | 1Q25 | 2Q25 | 6M24 | 6M25 | Var. <br>2Q25 2Q24 | Var. <br>2Q25 1Q25 | Var. <br>6M25 6M24 |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Brazil | 21.3 | 66.2 | 35.5 | 54.6 | 101.7 | 66.8% | (46.5%) | 86.3% |
| Latam (ex Brazil) | 1.0 | 1.9 | 0.7 | 4.1 | 2.6 | (24.8%) | (61.7%) | (37.7%) |
| Europe | 2.3 | 3.7 | 2.5 | 6.3 | 6.2 | 6.1% | (33.5%) | (1.3%) |
| North America | 25.0 | 6.9 | 12.6 | 46.4 | 19.4 | (49.6%) | 83.4% | (58.1%) |
| % CAPEX of revenue by segment | ||||||||
| Brazil | 5.9% | 19.2% | 9.2% | 8.3% | 13.9% | 3.3 p.p. | (10.0 p.p.) | 5.6 p.p. |
| Latam (ex Brazil) | 2.0% | 4.1% | 1.6% | 4.7% | 2.8% | (0.4 p.p.) | (2.5 p.p.) | (1.9 p.p.) |
| Europe | 6.1% | 5.9% | 4.8% | 8.0% | 5.4% | (1.4 p.p.) | (1.1 p.p.) | (2.6 p.p.) |
| North America | 8.4% | 1.9% | 4.9% | 7.7% | 3.2% | (3.5 p.p.) | 3.0 p.p. | (4.6 p.p.) |
| % Net Revenue Response | 6.7% | 9.7% | 6.9% | 7.8% | 8.4% | 0.2 p.p. | (2.8 p.p.) | 0.5 p.p. |
In 2Q25, the addition of fixed assets in Response was R$51.2 million.
Capital expenditures in Brazil for Expansion Capex were directed toward mobilizing contracts in mining response centers. Maintenance Capex in Brazil was used to renew contracts with major customers and purchase aircraft spare parts.
We increased investments in North America to modernize the fleet and prepare the region to win new long-term contracts.