Material Fact | Changes in the Company’s Management Structure

FERTILIZANTES HERINGER S.A.
CNPJ No. 22.266.175/0001-88

MATERIAL FACT

Fertilizantes Heringer S.A. (“Company“), in compliance with the Brazilian Corporation Law, CVM Resolution No. 44/2021, and the B3 Novo Mercado Listing Rules, hereby informs its shareholders and the market in general that the Company’s Board of Directors has decided, in a meeting held on this date, the following changes in the composition of the Company’s management:

(i) Rodrigo Horta Dias de Oliveira has been replaced in the positions of Chief Executive Officer (with immediate effect) and of Vice-Chairman of the Company’s Board of Directors (effective as of August 29, 2025), by Mr. Sergio Longhi Castanheiro, who will hold these positions until the date of the Annual General Meeting to be held in 2027.

 Mr. Sergio Longhi Castanheiro holds a degree in Chemistry from UNESP and a master’s degree in Chemical Engineering from USP. With over 17 years of experience in agribusiness, Mr. Sergio previously led the Blending and Distribution operations at EuroChem Brazil and industrial operations at Yara Brazil, always focusing on operational efficiency, technological innovation in fertilizers, and safety.

(ii) Fausto Pereira Goveia has been replaced in the positions of Chief Financial Officer and Investor Relations Officer of the Company by Mr. Gustavo Oubinha Barreiro, who will hold these positions until the date of the Annual General Meeting to be held in 2027.

Mr. Gustavo Oubinha Barreiro worked as a founding partner at Pawa Finance from 2015 to 2025, and as Statutory Director and Executive Director at Rabobank Brazil from 2002 to December 2014, where he was responsible for the bank’s investment banking license with the Central Bank. He holds a law degree from UFBA, a master’s degree from the University of East Anglia, a postgraduate degree from FGV, and executive education from HBS, Insead, and Chicago Booth.

(iii) Additionally, the following members of the Company’s Board of Directors have been replaced: (i) Aleksandr Benke, who leaves the position of Chairman of the Company’s Board of Directors; and (ii) Mr. Rafael Perez Vieira César, who leaves the position of effective member of the Company’s Board of Directors. In replacement of these members, in accordance with the Company’s Bylaws, the Board of Directors elected Messrs: (i) Nikolay Vasilchikov, to the position of Chairman of the Company’s Board of Directors; and (ii) Andrey Serebrennikov, to the position of effective member of the Company’s Board of Directors, both with a unified term with the other members of the Company’s Board of Directors, effective from August 29, 2025.

Mr. Nikolay Vasilchikov is an experienced manager, with a master’s degree in Administration from the Moscow State Technological University STANKIN and a law degree from the Moscow State Law Academy. Over an 18-year career, specializing in large-scale business transformations and human capital management, he has held leadership positions in major national and international companies. His career includes the successful management of transformation projects exceeding US$ 1 billion. He has worked in leading organizations such as PwC and EY in senior strategy and transformation roles; at Europe’s largest universal bank – Sberbank – he was responsible for performance management and the development of HR technology products; and currently, he serves as Human Resources Executive at EuroChem Group.

Mr. Andrey Serebrennikov is a lawyer, graduated cum laude from Lomonosov Moscow State University and holds the title of Candidate of Sciences (Russian equivalent to a Ph.D.) in Sociology from the same university. In a 15-year career, he has worked for national and multinational companies such as the Lukoil Group, Metalloinvest Group, and Amway.

(iv) Finally, Messrs: (i) Anton Slavnov, who held the position of Commercial Director of the Company; and (ii) Maicon Luiz Cossa, who held the position of Operations Director of the Company, leave their positions, which remain

The Company thanks all the members of the management who are leaving their positions for the valuable services provided to the Company, having successfully held their positions to date.

The Company will keep its shareholders and the market informed about any developments related to the aforementioned topic, as applicable.

Paulínia, SP, August 28, 2025.

Gustavo Oubinha
Chief Financial Officer and Investor Relations Officer