First Majestic Announces 2024 Mineral Reserve and Mineral Resource Estimates

In This Article:

Record Mineral Resource Levels and Strong Year-Over-Year Mineral Reserves Growth

Vancouver, British Columbia--(Newsfile Corp. - March 31, 2025) - First Majestic Silver Corp. (NYSE: AG) (TSX: AG) (FSE: FMV) (the "Company" or "First Majestic") is pleased to announce the 2024 Mineral Reserve and Mineral Resource estimates for its four operating mines in Mexico and its Jerritt Canyon Gold Mine in the United States, with an effective date of December 31, 2024. The Company's four operating mines in Mexico are: the Cerro Los Gatos Silver Mine (following the Company's recent acquisition of Gatos Silver, Inc., the Company holds a 70% interest in the Los Gatos Joint Venture that owns and operates the mine), the Santa Elena Silver/Gold Mine, the San Dimas Silver/Gold Mine, and the La Encantada Silver Mine. The Jerritt Canyon Gold Mine is currently in temporary suspension with the Company focused on exploration, definition, and anticipated expansion of the Mineral Resources. Although the Company did not complete the acquisition of Gatos Silver until January 16, 2025, the Company has included the Cerro Los Gatos Mineral Reserves and Resources as of December 31, 2024, for the purposes of this news release and the Company's annual information form for the year ended December 31, 2024 (the "2024 AIF").

"2024 marks another record milestone for First Majestic. Due to our strategic M&A activities and widely successful exploration program, we have increased our Mineral Resources to the highest level in the Company's history" stated Keith Neumeyer, President & CEO of First Majestic. "I am proud of what we have achieved in 2024 from an exploration and geology stance. We budgeted for a robust exploration program in 2024 and it has yielded exceptional results, most notably the high-grade gold and silver discovery at Santa Elena, Navidad, and impressive results at San Dimas, which sets us up for an exciting future ahead. We finished the year on a fantastic note and our team hit the ground running executing on our record 2025 exploration program."

In 2024, the Company increased its silver equivalent ("AgEq") ounce Proven and Probable Reserves by 45%, and its Measured & Indicated, and Inferred Mineral Resources by 25% and 23%, respectively. This strong increase in contained AgEq ounces was driven by the success of the Company's 2024 exploration program and the strategic acquisition of Gatos Silver.

2024 HIGHLIGHTS

  • The Company agreed to acquire Gatos Silver, which holds a 70% joint venture interest in the Cerro Los Gatos Silver Mine, and the acquisition was completed subsequent to year-end.

  • The Company completed 182,909 metres of exploration drilling during 2024.

  • Reserves +45% Y/Y AgEq: Proven and Probable Mineral Reserves ("P&P") estimates at the Company's four producing mines totalled 17.9 million tonnes with 177.6 million AgEq ounces consisting of 86.8 million ounces of silver and 594,000 ounces of gold, 587 million pounds of zinc, 314 million pounds of lead, and 32 million pounds of copper (the Company's P&P Mineral Reserve estimates now include zinc, lead and copper following the addition of the Cerro Los Gatos Silver Mine), which represent a 60% increase in tonnes, a 55% increase in silver ounces and a 12% decrease in gold ounces for an aggregate 45% increase in AgEq ounces compared to the 2023 year-end P&P Mineral Reserves estimates. The significant growth in P&P Mineral Reserves reflects the addition of the Cerro Los Gatos Silver Mine. The Mineral Reserves for the Cerro Los Gatos Silver Mine are reported on a 70% attributable basis to the Company.

  • M&I Resources +25% Y/Y AgEq: Measured and Indicated ("M&I") Mineral Resource estimates for the Company's four producing mines and the Jerritt Canyon Gold Mine totalled 34.8 million tonnes with 434.2 million AgEq ounces consisting of 135.2 million ounces of silver, 2.9 million ounces of gold, 672 million pounds of zinc, 360 million pounds of lead, and 35 million pounds of copper (the Company's M&I Mineral Resource estimates now include zinc, lead and copper following the addition of the Cerro Los Gatos Silver Mine). This represents a 36% increase in tonnes, a 41% increase in silver ounces and a 1% increase in gold ounces for an aggregate 25% increase in AgEq ounces compared to the 2023 year-end M&I Mineral Resource estimates. The significant growth of the M&I Mineral Resource estimates reflects the addition of the Cerro Los Gatos Silver Mine (reported on a 70% attributable basis to the Company), mining depletion and updated economic parameters. Exploration drilling results converted and added M&I Mineral Resources.

  • Inferred Resources +23% Y/Y AgEq: Inferred Mineral Resource estimates for the Company's four producing mines and the Jerritt Canyon Gold Mine totalled 29.0 million tonnes with 350.3 million AgEq ounces consisting of 81.2 million ounces of silver, 2.9 million ounces of gold, 171 million pounds of zinc, 77 million pounds of lead, and 7 million pounds of copper (the Company's Inferred Mineral Resource estimates now include zinc, lead and copper following the addition of the Cerro Los Gatos Silver Mine). This represents a 30% increase in tonnes, a 25% increase in silver ounces and a 13% increase in gold ounces for an aggregate 23% increase in AgEq ounces compared to the 2023 year-end Inferred Mineral Resource estimates. The substantial increase to the Inferred Mineral Resource estimates reflects the discovery and declaration of a maiden Inferred Mineral Resource Estimate for the Navidad gold and silver deposit (at Santa Elena), and the addition of the Cerro Los Gatos Silver Mine (reported on a 70% attributable basis to the Company).

  • The Navidad discovery at Santa Elena added 2.3 million tonnes of Inferred Mineral Resources with 29.7 million AgEq ounces consisting of 5.9 million ounces of silver and 249,000 ounces of gold with metal grades of 81 g/t Ag and 3.42 g/t Au. To date, only a portion of the newly delineated vein system has been classified within the resource estimate, with significant upside potential to be realized through additional drilling.