Anteros Metals: Science-based, Diversified Mineral Exploration in Jap Canada

“The success at Santa Elena continues,” said Keith Neumeyer, President & CEO of First Majestic. “The exploration program at Navidad throughout H2 efficiently expanded the high-grade gold and silver mineralization of the Navidad discovery, extending mineralization nearer to the Ermitaño mine infrastructure. We anticipate continued success at Santa Elena throughout 2025 as we work to develop and outline the mineral deposit at Navidad. We’re very excited by the potential of this new discovery, which we consider represents a high-quality alternative to develop the Mineral Useful resource and Mineral Reserve base each for the Santa Elena operation and for the Firm as an entire.”

H2 2024 NAVIDAD EXPLORATION HIGHLIGHTS

Drilling of Navidad because the discovery announcement in July 2024, has considerably expanded the footprint of gold (“Au”) and silver (“Ag”) mineralization. A complete of 20,809 metres (“m”) of recent drilling was accomplished with 17-holes which have outlined in depth mineralization consisting of two epithermal quartz veins with high-grade gold and silver mineralization: the Navidad and Winter veins. The gold and silver mineralization recognized thus far extends better than 1,000m by 300m in strike and dip with the true thickness of mineralization averaging between 2.8m and 4.4m. A maiden Inferred Mineral Useful resource estimate is anticipated to be launched in late March.

Throughout 2025, further drilling from floor is deliberate to proceed testing the potential growth of Navidad, which stays open in a number of instructions. Expansionary and infill useful resource definition drilling may even happen from a number of new underground drilling stations constructed from the Ermitaño mine. 5 drill rigs are at present energetic at Navidad.

Impartial third-party metallurgical testing of Navidad and Winter mineralization below present mineral processing parameters for the Santa Elena processing plant was accomplished in the course of the fall of 2024. The testing revealed distinctive gold and silver restoration charges with gold recoveries persistently exceeding 90% and silver recoveries exceeding 85%. The outcomes firmly set up that Navidad’s mineralization is appropriate with the present processing infrastructure on the Santa Elena operation.

KEY DRILLING HIGHLIGHTS

A abstract of high-grade assay outcomes from exploration drilling accomplished at Navidad in the course of the second half of 2024 is supplied in Desk 1 and contains the highlighted true-width intervals that observe:

Navidad Mineral Mission

Winter Vein Highlights

• Gap EW-24-371: 4.30 m at 5.12 g/t Au & 43 g/t Ag

• Gap EW-24-372-A: 4.83 m at 8.60 g/t Au & 77 g/t Ag

• Gap EW-24-373: 6.06 m at 5.64 g/t Au & 104 g/t Ag

• Gap EW-24-377: 3.30 m at 7.09 g/t Au & 1,253 g/t Ag

• Gap EW-24-379: 1.72 m at 1.57 g/t Au & 119 g/t Ag

• Gap EW-24-380: 3.07 m at 4.27 g/t Au & 57 g/t Ag

• Gap EW-24-382: 2.66 m at 13.93 g/t Au & 99 g/t Ag

• Gap EW-24-383: 1.38 m at 0.42 g/t Au & 1,064 g/t Ag

• Gap EW-24-384: 1.59 m at 6.40 g/t Au & 110 g/t Ag

• Gap EWUG-24-035: 5.62 m at 2.89 g/t Au & 50 g/t Ag

Navidad Vein Highlights

• Gap EW-24-372-A: 3.24 m at 13.06 g/t Au & 205 g/t Ag

• Gap EW-24-374: 2.63 m at 0.54 g/t Au & 221 g/t Ag

• Gap EW-24-377: 1.59 m at 1.60 g/t Au & 135 g/t Ag

• Gap EW-24-379: 2.32 m at 7.09 g/t Au & 38 g/t Ag

• Gap EW-24-380: 1.27 m at 2.08 g/t Au & 120 g/t Ag

• Gap EW-24-381: 1.69 m at 0.92 g/t Au & 128 g/t Ag

• Gap EW-24-384: 2.58 m at 1.44 g/t Au & 139 g/t Ag

• Gap EW-24-386: 1.18 m at 2.82 g/t Au & 118 g/t Ag

• Gap EWUG-24-035: 4.78 m at 1.36 g/t Au & 115 g/t Ag

DISTRICT EXPLORATION APPROACH

Exploration for gold and silver mineral deposits at Santa Elena is guided by a newly developed understanding of the rocks almost certainly to host mineralized veins inside the volcanic stratigraphy in addition to by the timing of mineralizing occasions within the district. Detailed mapping, geologic interpretation and geochronological research have led the exploration workforce to acknowledge that Santa Elena and Ermitaño-style mineral deposits shaped in favorable host-rocks which might be hid beneath in depth areas of overlying volcanic rocks. Drilling beneath the overlying volcanic rocks and different post-mineral volcanic rocks in 2024 has confirmed the favorable host-rock idea and led to the invention of the Navidad Goal (Determine 1). For 2024, a complete of 58,311m of exploration drilling was accomplished on the Santa Elena property, a 21% enhance in comparison with 2023.

Determine 1: Santa Elena Property 2024 Schematic Map of the Navidad Goal Space. Plan View.

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Navidad Goal

On account of H2 drilling, the Navidad discovery location has been confirmed to happen roughly 100m southwest and 350m beneath the Ermitaño underground mine ranges, considerably nearer than what the Firm had beforehand said, which was 500m southwest and 750m beneath the mine ranges. Drilling is ongoing with 20,809m accomplished in 17 drill holes in the course of the second half of 2024 for a complete of 31,500m on this goal space throughout 2024. The drilling considerably expanded the recognized mineralization and delineated two quartz veins that possess high-grade gold and silver mineralization: the Navidad and Winter veins. The epithermal vein deposits encompass gray to pink, banded quartz and quartz vein stockwork that include seen silver sulphides and domestically seen native gold grains, each detectable by handheld X-Ray Florescence Analyzer (Determine 2 and Determine 3).

The Winter vein happens roughly 180m structurally above and sub-parallel to the underlying Navidad vein; each veins are surrounded by quartz stockwork (Determine 4). Vital gold and silver mineralization intersected inside the Winter vein at present extends 600m by 350m alongside strike and dip and the mineralization ranges from 0.65m to six.6m in thickness (Determine 5). Mineralization intersected thus far inside the Navidad vein extends 1,000m by 300m alongside strike and dip and the mineralization ranges from 0.5m to five.0m in thickness (Determine 6).

Impartial third-party metallurgical assessments exhibit sturdy gold and silver restoration charges for the Navidad and Winter mineralization, exceeding 90% and 85%, respectively. These outcomes verify every vein’s compatibility with Santa Elena’s present processing facility. Preliminary grindability assessments point out the fabric is barely softer than Ermitaño’s mineralization, doubtlessly enabling elevated plant throughput.

Throughout 2025, the drilling will probe for growth of the Navidad/Winter mineralization from floor. The complete extent of the gold and silver vein system isn’t but recognized, and the potential to broaden the mineralization stays open in a number of instructions. Intensive infill useful resource definition drilling may even be accomplished primarily from new underground drilling stations inside the Ermitaño mine.

Determine 2: Core Pictures of the Winter Vein with Excessive-Grade Gold and Silver Mineralization detected by XRF Analyzer.
Gap EW-24-373 Assay Outcomes: 6.06 m at 5.64 g/t Au and 104 g/t Ag.

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Determine 3: Core Pictures of the Navidad Vein with Excessive-Grade Gold and Silver Mineralization detected by XRF Analyzer.
Gap EW-24-372A Assay Outcomes: 3.24 m at 13.06 g/t Au and 206 g/t Ag.

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Determine 4: Navidad Vein System Element. Winter and Navidad veins. (A) Vertical Cross-Part of Navidad and Winter Veins trying East. (B) Plan View of Navidad and Winter Veins. (C) Lengthy-Part trying Southeast. Full Projection.

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Determine 5: Winter Vein Lengthy Part Wanting Northwest with Vital Intercepts.

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Determine 6: Navidad Vein Lengthy Part Wanting Northwest with Vital Intercepts

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Desk 1: Abstract of Vital Gold and Silver Drill Gap Intercepts at Navidad

Notes:

1. All holes are Diamond Drill Core; AgEq grade = Ag grade (g/t) + [Au (g/t) * 85].
2. From and To size indicated in metres, true width of the intercept is calculated per drill gap and vein angles.
3. See Appendix for particulars concerning drill gap areas, pattern kind, azimuth, dip and whole depth.
4. Gold and silver drill gap vital intercepts had been composited utilizing the size weighted averages of uncapped pattern assays, a 145 g/t AgEq minimal grade (Reduce-off-Grade, “COG”), and a minimal composite size of 1.0 m (true width). A most of 1.0 m beneath the minimal grade cut-off was allowed as inner dilution. The place vital to attain minimal size, a single pattern beneath the COG however grading >75g/t AgEq was allowed to be composited for brief intervals.
5. The place current, single samples or intercepts with assay outcomes increased than 1000 g/t Ag and/or 10 g/t Au are highlighted as “Embody” in every intercept.

First Majestic’s drilling packages observe established High quality Assurance, High quality Management (“QA/QC”) insertion protocols with requirements, blanks, and duplicates launched into the sample-stream. After geological logging, all drill core samples are minimize in half. One half of the core is submitted to the laboratory for evaluation and the remaining half core is retained on-site for verification and reference functions or for future metallurgical testing.

Core samples had been submitted to the SGS laboratory (ISO/IEC 17025:2017). At SGS, gold is analyzed by 30g or 50g hearth assay atomic absorption end (GE-FAA30V5, GE-FAA50V5). Outcomes above 10 g/t gold are analyzed by 30 g or 50g hearth assay gravimetric end (GO-FAG30V, GO-FAG50V). Silver is analyzed by 3-acid digest atomic absorption end (GE-AAS33E50). Outcomes above 100 g/t silver are analyzed by 30g or 50g hearth assay gravimetric end (GO-FAG37V, GO-FAG57V).

Core samples from the Navidad and Winter deposits had been subjected to bottle roll cyanidation assessments on the SGS laboratory (ISO/IEC 17025:2017) below circumstances replicating these of the Santa Elena Unit processing plant, together with the 40 µm HIGmill product goal. The strategies used to investigate the merchandise of those assessments had been GE_FAA3OV5, GE_AAS33E50, GL_AA582T.

For additional data regarding QA/QC and knowledge verification issues, key assumptions, parameters, and strategies utilized by the Firm to estimate Mineral Reserves and Mineral Assets, and for an in depth description of recognized authorized, political, environmental, and different dangers that might materially have an effect on the Firm’s enterprise and the potential growth of Mineral Reserves and Mineral Assets, see the Firm’s most lately filed Annual Info Type accessible below the Firm’s SEDAR+ profile at www.sedarplus.ca and the Firm’s Annual Report on Type 40-F for the yr ended December 31, 2023 filed with america Securities and Trade Fee on EDGAR at www.sec.gov/edgar.

QUALIFIED PERSONS

Gonzalo Mercado, P. Geo., the Firm’s Vice President of Exploration and Technical Companies and a “Certified Particular person” as outlined below Nationwide Instrument 43-101 Requirements of Disclosure for Mineral Initiatives (“NI 43-101”), has reviewed and accredited the scientific and technical data contained on this information launch. Mr. Mercado has verified the exploration knowledge contained on this information launch, together with the sampling, analytical and take a look at knowledge underlying such data.

Michael Deal, the Firm’s Vice President of Metallurgy and Innovation, and a “Certified Particular person” as outlined below NI 43-101, has reviewed and accredited the scientific and technical data contained on this information launch associated to metallurgical testing.

ABOUT FIRST MAJESTIC

First Majestic is a publicly traded mining firm targeted on silver and gold manufacturing in Mexico and america. The Firm presently owns and operates 4 producing underground mines in Mexico: the Cerro Los Gatos Silver Mine (the Firm holds a 70% curiosity within the Los Gatos Joint Enterprise that owns and operates the mine), the Santa Elena Silver/Gold Mine, the San Dimas Silver/Gold Mine, and the La Encantada Silver Mine, in addition to a portfolio of growth and exploration property, together with the Jerritt Canyon Gold undertaking situated in northeastern Nevada, U.S.A.

First Majestic is proud to personal and function its personal minting facility, First Mint, LLC, and to supply a portion of its silver manufacturing on the market to the general public. Bars, ingots, cash and medallions can be found for buy on-line at www.firstmint.com, at among the lowest premiums accessible.

FIRST MAJESTIC SILVER CORP.

“signed”

Keith Neumeyer, President & CEO

Cautionary Notice Relating to Ahead Wanting Statements

This information launch accommodates “ahead‐trying data” and “forward-looking statements” below relevant Canadian and U.S. securities legal guidelines (collectively, “ahead‐trying statements”). These statements relate to future occasions or the Firm’s future efficiency, enterprise prospects or alternatives which might be primarily based on forecasts of future outcomes, estimates of quantities not but determinable and assumptions of administration made in gentle of administration’s expertise and notion of historic tendencies. Assumptions could show to be incorrect and precise outcomes and future occasions could differ materially from these anticipated. Any statements that categorical or contain discussions with respect to predictions, expectations, beliefs, plans, projections, targets or future occasions or efficiency (typically, however not at all times, utilizing phrases or phrases similar to “search”, “anticipate”, “plan”, “proceed”, “estimate”, “count on”, “could”, “will”, “undertaking”, “predict”, “forecast”, “potential”, “goal”, “intend”, “may”, “may”, “ought to”, “consider” and related expressions) usually are not statements of historic truth and could also be “ahead‐trying statements”.

Ahead-looking statements are topic to recognized and unknown dangers, uncertainties and different components that will trigger precise outcomes to materially differ from these expressed or implied by such forward-looking statements, together with however not restricted to: materials opposed adjustments, sudden adjustments in legal guidelines, guidelines or rules, or their enforcement by relevant authorities; the failure of events to contracts with the corporate to carry out as agreed; social or labour unrest; adjustments in commodity costs; and the failure of exploration packages or research to ship anticipated outcomes or outcomes that might justify and assist continued exploration, research, growth or operations. Though the Firm has tried to determine essential components that might trigger precise outcomes to vary materially from these contained in forward-looking statements, there could also be different components that trigger outcomes to not be as anticipated, estimated or meant.

The Firm believes that the expectations mirrored in these ahead‐trying statements are cheap, however no assurance may be provided that these expectations will show to be appropriate and such ahead‐trying statements included herein shouldn’t be unduly relied upon. These statements communicate solely as of the date hereof. The Firm doesn’t intend, and doesn’t assume any obligation, to replace these forward-looking statements, besides as required by relevant legal guidelines.

Cautionary Notice to United States Traders

The Firm is a “international personal issuer” as outlined in Rule 3b-4 below america Securities Trade Act of 1934, as amended, and is eligible to depend upon the Canada-U.S. Multi-Jurisdictional Disclosure System, and is subsequently permitted to arrange the technical data contained herein in accordance with the necessities of the securities legal guidelines in impact in Canada, which differ from the necessities of the securities legal guidelines at present in impact in america. Accordingly, data regarding mineral deposits set forth herein might not be comparable with data made public by firms that report in accordance with U.S. requirements.

Technical disclosure contained on this information launch has not been ready in accordance with the necessities of United States securities legal guidelines and makes use of phrases that adjust to reporting requirements in Canada with sure estimates ready in accordance with NI 43-101.

NI 43-101 is a rule developed by the Canadian Securities Directors that establishes requirements for all public disclosure an issuer makes of scientific and technical data regarding the issuer’s materials mineral initiatives.

APPENDIX – DRILL HOLE DETAILS

Desk A1: Drill Gap Collar Location, Pattern Sort, Azimuth, Dip and Whole Depth

Notes:

1. Santa Elena: All drill gap collar coordinates are decided utilizing whole station gear after gap completion with UTM WGS84, Zone 13 (metres) because the reference system.

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