SCHEDULE 13G 0001676700 XXXXXXXX LIVE Class A Ordinary Shares, par value $0.0001 per share 10/29/2025 0001937441 Ambipar Emergency Response G02532102 Avenida Angelica, N. 2346 5th Floor, Room 4, Consolacao Sao Paulo D5 01228-200 Rule 13d-1(c) Riva Ridge Capital Management LP b DE 0.00 1235816.00 0.00 1235816.00 1235816.00 N 7.1 IA PN Riva Ridge Master Fund, Ltd. b E9 0.00 1235816.00 0.00 1235816.00 1235816.00 N 7.1 CO Riva Ridge GP LLC b DE 0.00 1235816.00 0.00 1235816.00 1235816.00 N 7.1 HC OO Stephen Golden b X1 0.00 1235816.00 0.00 1235816.00 1235816.00 N 7.1 HC IN Peter Finelli b X1 0.00 1235816.00 0.00 1235816.00 1235816.00 N 7.1 HC IN Ambipar Emergency Response Avenida Angelica, N. 2346, 5th Floor, Room 4, Consolacao, Sao Paulo, Brazil 01228-200 Riva Ridge Capital Management LP Riva Ridge Master Fund, Ltd. Riva Ridge GP LLC Stephen Golden Peter Finelli Riva Ridge Capital Management LP 55 Fifth Avenue, 18th Floor New York, New York 10003 United States of America Riva Ridge Master Fund, Ltd. c/o Walkers Corporate Limited 190 Elgin Avenue George Town, Grand Cayman KY1-9008 Cayman Islands Riva Ridge GP LLC 55 Fifth Avenue, 18th Floor New York, New York 10003 United States of America Stephen Golden c/o Riva Ridge Capital Management LP 55 Fifth Avenue, 18th Floor New York, New York 10003 United States of America Peter Finelli c/o Riva Ridge Capital Management LP 55 Fifth Avenue, 18th Floor New York, New York 10003 United States of America Riva Ridge Capital Management LP - Delaware Riva Ridge Master Fund, Ltd. - Cayman Islands Riva Ridge GP LLC - Delaware Stephen Golden - United States Peter Finelli - United States Y Items 6, 8, 9 and 11 of each of the cover pages for each Reporting Person in this Schedule 13G include 1,137,810 warrants beneficially owned by the Reporting Persons, each exercisable for 1 Class A Ordinary Share, $0.0001 par value. Riva Ridge Capital Management LP - 1,235,816 Riva Ridge Master Fund, Ltd. - 1,235,816 Riva Ridge GP LLC - 1,235,816 Stephen Golden - 1,235,816 Peter Finelli - 1,235,816 Riva Ridge Capital Management LP - 7.1% Riva Ridge Master Fund, Ltd. - 7.1% Riva Ridge GP LLC - 7.1% Stephen Golden - 7.1% Peter Finelli - 7.1% Riva Ridge Capital Management LP - 0 Riva Ridge Master Fund, Ltd. - 0 Riva Ridge GP LLC - 0 Stephen Golden - 0 Peter Finelli - 0 Riva Ridge Capital Management LP - 1,235,816 Riva Ridge Master Fund, Ltd. - 1,235,816 Riva Ridge GP LLC - 1,235,816 Stephen Golden - 1,235,816 Peter Finelli - 1,235,816 Riva Ridge Capital Management LP - 0 Riva Ridge Master Fund, Ltd. - 0 Riva Ridge GP LLC - 0 Stephen Golden - 0 Peter Finelli - 0 Riva Ridge Capital Management LP - 1,235,816 Riva Ridge Master Fund, Ltd. - 1,235,816 Riva Ridge GP LLC - 1,235,816 Stephen Golden - 1,235,816 Peter Finelli - 1,235,816 Y N All of the securities reported in this Schedule 13G are directly owned by advisory clients of Riva Ridge Capital Management LP. None of those advisory clients, other than Riva Ridge Master Fund, Ltd., may be deemed to beneficially own more than 5% of the Class A Ordinary Shares, $0.0001 par value. N Please see Exhibit B attached hereto. Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11. Exhibit A - Joint Filing Agreement Exhibit B - Control Person Identification Riva Ridge Capital Management LP /s/ Stephen Golden* 11/05/2025 Riva Ridge Master Fund, Ltd. /s/ Stephen Golden* 11/05/2025 Riva Ridge GP LLC /s/ Stephen Golden* 11/05/2025 Stephen Golden /s/ Stephen Golden* 11/05/2025 Peter Finelli /s/ Peter Finelli* 11/05/2025 * Each Reporting Person disclaims beneficial ownership of the reported securities except to the extent of his, her or its pecuniary interest therein, and this report shall not be deemed an admission that such Reporting Person is the beneficial owner of the securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose. To the extent that "ownership of 5 percent or less of a class" was indicated in Item 5, such response only applies to the Reporting Person(s) that indicated elsewhere herein that it beneficially owns five percent (5%) or less of the class.