Exhibit 99.1 PRESS RELEASE Contact: José Luis Tinajero Mario Moreno Cortez Grupo Simec, S.A.B. de C.V. Calzada Lázaro Cárdenas 601 44440 Guadalajara, Jalisco, México 52 55 1165 1025 52 33 3770 6734 GRUPO SIMEC ANNOUNCES RESULTS OF OPERATIONS FOR THE FIRST NINE MONTHS OF 2024 GUADALAJARA, MEXICO, October 29, 2024- Grupo Simec, S.A.B. de C.V. (NYSE: SIM) ("Simec") announced today its results of operations for the nine-month period ended September 30, 2024. Comparative first nine months of 2024 vs. first nine ...