Certifications by business unit

Exploration, Exploraciones Fresnillo 24 May 2027

Exploration, Exploraciones Peñoles 06 June 2026

Metals, Metalúrgica Met-Mex 05 August 2024

Mining - Fresnillo, Fresnillo 25 June 2026

Mining - Fresnillo, Penmont
(Herradura and Noche Buena) 20 August 2025

Mining - Fresnillo, Saucito 06 July 2027

Mining - Peñoles, Sabinas 25 March 2027

Mining - Peñoles, Roble 05 September 2025

Chemicals, Industrias Magnelec 04 September 2025

Chemicals, Industrias Magnelec
Scope of the Integrated Management System 13 January 2026

Chemicals, Química del Rey 30 August 2025

Mining - Peñoles, Tizapa 21 November 2026

Metals, Metalúrgica Met-Mex 08 October 2024

Chemicals, Industrias Magnelec 04 September 2025

Chemicals, Industrias Magnelec
Scope of the Integrated Management System 13 January 2026

Químicos, Química del Rey 28 June 2027

Mining - Fresnillo, Fresnillo 25 October 2024

Mining - Fresnillo, Penmont
(Herradura and Centauro Profundo) 20 August 2025

Mining - Fresnillo, Saucito 07 June 2027

Mining - Peñoles, Sabinas 02 October 2025

Mining - Peñoles, Roble 05 September 2025

Chemicals, Industrias Magnelec 04 September 2025

Chemicals, Industrias Magnelec
Scope of the Integrated Management System 13 January 2026

Green Industry
Chemicals, Industrias Magnelec 15 September 2024

Responsible Care
Chemicals, Química del Rey 06 October 2024

Responsible Care
Metals, Fertirey 22 August 2026

Cyanide Management
Mining - Fresnillo, Herradura 09 September 2025

Cyanide Management
Mining - Fresnillo, Noche Buena 22 March 2026