Grupo Simec SAB Announces Amendment to its Annual Report on Form 20F for the year anded December 31, 2024

GUADALAJARA, México, Oct. 6, 2025 /PRNewswire/ -- Grupo Simec, S.A.B. de C.V.(NYSE-MKT: SIM) (the "Company") filed an amendment to its Annual Report on Form 20-F for the year ended December 31, 2024 with the U.S. Securities and Exchange Commission at www.sec.gov. On October 02,2025

The amendment includes revised disclosures under Item 15 ("Controls and Procedures") to provide separate conclusions by the Company's principal executive officer and principal financial officer regarding the effectiveness of (i) disclosure controls and procedures and (ii) internal control over financial reporting, in accordance with SEC requirements. No changes were made to the Company's audited financial statements or other sections of the original Form 20-F.

The amended Form 20-F is also available on the investor relations section of the Company's website at https://gsimec.com.mx/sec-filings.php. Shareholders may request a hard copy of the amended Form 20-F, including the Company's complete audited financial statements for the year ended December 31, 2024, free of charge, by contacting the Company's Finance Coordinator, Mario Moreno Cortez, by email at mmoreno@gruposimec.com.mx

About Grupo Simec Grupo Simec is a diversified manufacturer, processor and distributor of SBQ steel and structural steel products with production and commercial operations in the United States, Mexico and Brazil. Grupo Simec is also an important producer of structural and light structural steel products in Mexico in terms of sales volume. Grupo Simec's SBQ products are used across a broad range of highly engineered end-user applications, including axles, hubs and crankshafts for automobiles and light trucks, machine tools and off-highway equipment. Its structural steel products are mainly used in the nonresidential construction market and other construction applications.

Contact: Mario Moreno Cortez
Grupo Simec, S.A.B. de C.V.
Calzada Lázaro Cárdenas 601 44440
Guadalajara, Jalisco, México
 +52 33 3770 6700

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SOURCE Grupo Simec, S.A.B. de C.V.