November 17, 2025 Mario Moreno Cortez Finance Coordinator GRUPO SIMEC, S.A.B. de C.V. Calzada L zaro C rdenas 601 Colonia La Nogalera Guadalajara , Jalisco M xico 44440 Re: GRUPO SIMEC, S.A.B. de C.V. Form 20-F for Fiscal Year Ended December 31, 2024 File No. 001-11176 Dear Mario Moreno Cortez: We have completed our review of your filing. We remind you that the company and its management are responsible for the accuracy and adequacy of their disclosures, notwithstanding any review, comments, action or absence of action by the staff. Sincerely, Division of Corporation Finance Office of Manufacturing