Sinda Ltd.

Trading Plans

During the second quarter ended June 30, 2026, no directors or Section 16 officers adopted, modified, orterminated any “Rule 10b5-1 trading arrangement” or any “non-Rule 10b5-1 trading arrangement,” as each term is defined in Item 408(a) of Regulation S-K.

Change of Principal Executive Officer

Effective as of August 14, 2026, the Company’s Board of Directors (the “Board”) has determined that the Company’s Executive Chairman, Daniel Muñiz Quintanilla now qualifies as the Company’s Principal Executive Officer (“PEO”) under the rules and regulations of the SEC, in place of Luis Barreto, the Company’s Chief Financial Officer. While the Company continues to search for additional executives and may in the future expand its senior management team to include a Chief Executive Officer or Chief Operating Officer, in the interim Mr. Muñiz Quintanilla will assume a more active role in the management of the Company. Mr. Barreto’s cessation as PEO is not the result of any disagreement with the Company and Mr. Barreto will continue to serve as the Company’s Chief Financial Officer and Principal Financial Officer.

Mr. Muñiz Quintanilla has served as a member of the Board since June 2021 and as Executive Chairman since April 2022. He previously served as Vice Chairman from June 2021 to April 2022. Mr. Muñiz Quintanilla also serves on the Technical, Safety and Sustainability Committee of the Board. He as a member of the board of directors of First Majestic Silver Corp., NOVAGOLD Resources Inc., Sunshine Silver Mining & Refining Company and Brookfield Infrastructure Partners L.P. Mr. Muñiz is also a founding partner of Axkan Capital Partners S.L.. Mr. Muñiz served as the managing director and executive vice chair of Americas Mining (the mining division of Grupo México) from 2014 to 2018, as chief executive officer of Industrial Minera Mexico (the underground mining division of Grupo México) from 2010 to 2014, and as chief financial officer of Grupo México from 2007 to 2014. Mr. Muñiz served as a director of Tharsis Mining S.L. from June 2022 until November 2025, as a director of Gatos Silver from April 2021 until it was acquired by First Majestic Silver Corp. in January 2025, and as a director of Hudbay Minerals Inc. from July 2019 until May 2024. He holds a law degree from Universidad Iberoamericana, in Mexico City, a master’s degree in law from Georgetown University in Washington, D.C. and a master’s degree in business administration from Instituto de Empresa in Madrid, Spain.

There are no family relationships between Mr. Muñiz Quintanilla and any director or executive officer of the Company that are required to be disclosed pursuant to Item 401(d) of Regulation S-K.

The Company previously entered into a letter agreement with Mr. Muñiz Quintanilla dated May 28, 2021, as amended May 25, 2022 and further amended and restated as of March 19, 2026 (the “Muñiz Letter Agreement”), for his services as senior special advisor. On June 23, 2026, the Company entered into a consulting services agreement with Mr. Muñiz Quintanilla (the “Muñiz Consulting Agreement”), which replaced the Muñiz Letter Agreement. The material terms of the Muñiz Consulting Agreement were disclosed in the Company’s Registration Statement on Form S-1, as amended (Registration No. 333-296567), and a copy of the Muñiz Consulting Agreement was filed as Exhibit 10.10 thereto and is incorporated herein by reference.