Aztec Expands Drilling Program at the Tombstone Project, Arizona

(TheNewswire)

• Program expanded to a minimum 8,500 meters extended into Q12026

• 34 RC holes have now been drilled

• 21 holes are pending results as thedrilling program continues

Vancouver, Canada – December 4,2025 – TheNewswire- Aztec Minerals Corp. (AZT:TSX-V, OTCQB: AZZTF) (“Aztec” or the“Company”) announces an update to the ongoing Tombstone PropertyReverse Circulation and Core drilling program in Southeastern Arizona. The 2025 drilling program has now completed 34RC drill holes, 13 drill holes have been reported (please see newreleases dated August 14, September 23, and October 31, 2025).  Thedrilling program has completed 5,960 meters of RC drilling and 495m ofcore drilling to date.  The company currently has 21 RC drill holesawaiting geochemical analysis at the Bureau Veritas Laboratory.

Drilling Program Expansion

The Company also announces that the Tombstone PropertyJV Management Committee met recently and approved an expansion of thedrill program from 7,500 meters to at least 8,500 meters.  Theexpanded program comprises of 7,000 meters of RC and a minimum of1,500 meters of core drilling and is now expected to extend into thefirst quarter of 2026.

Analytical Turnaround TimeUpdate

Aztec has been advised that sample backlogs andturnaround times for geochemical analysis at the Bureau Veritaslaboratory are expected to improve with recent addition of staff andrecently completed analysis equipment repair.  The company expects toreceive additional analytical results within the next 30 days.

CoreDrilling Update

The core drilling portion of the program has resumedand has currently advanced 282 meters to 465 meters total depth in thedrillhole TC25-03 (target TR24-13).  Core drilling is also expectedto continue to test to depth the previously identified AMT targetunder the Bisbee formation in the thick Paleozoic carbonate formations below by re-entering the core drill holes. Aztec has previously identified several large, strong, conductivebodies, underneath the historic gold-silver district through NSAMT(natural-source audio-frequency magneto-telluric surveys)anomalies 1 .

Figure 1: Tombstone 2025 RC DrillingPlan Completed to Date

Click Image To View Full Size

QAQC Statement

Drill samples are collected every 1.52 m from RC chips andevery 1.52 m from sawing the core drill holes.  The samples areanalyzed by Bureau Veritas for gold with a 30-gram sample size usingthe method FA430 followed by MA300.  Bureau Veritas is independent ofthe Company and of the Qualified Person.  Over limits, when present,are analyzed by MA370 or FA530. The companyuses quality assurance-quality control as a standard part of itssampling-assaying-assessments in conjunction with its explorationsampling programs.  Samples and their collection are controlled by anindustry standard conforming QAQC program including all drill holes containing certified blanks, standards, andduplicates. The samples are being regularlyshipped to and received by the Bureau Veritas Minerals laboratory inHermosillo, Mexico for geochemical analysis.  The QAQC for thedrilling programs has been evaluated and found to have goodresults.

Tombstone Project Overview

Aztec Minerals holds a 85.0% interest in the TombstoneProperty Joint Venture, which includes most of the original patentedmining claims in the main district as well as some recently acquiredproperties .

The main target of the currentdrilling is to continue testing the shallow, bulk tonnage, potentiallyheap leachable, mesothermal gold-silver oxide mineralization adjacentand below the previously mined Contention pit by step-out drilling. Future drilling is expected to focus on follow-up on the currentprogram’s results.  It is anticipated that possible targeting couldinclude strike and dip extensions of the shallow oxide mineralization,and move along those trends deeper into the sulfide zone ashistorically there was significant production to 300 mdepth *2 .

The Tombstone project is located 100 kilometers (km)southeast of Tucson, Arizona and covers much of the historic Tombstonesilver district.  Tombstone is renowned for its high grade, oxidized,silver-gold mesothermal stringer lode veins, hydrothermal breccias andmanto CRD orebodies that were mined in the late 1800’s and early1900’s.  The historic silver production in the Tombstone districtfrom 1878 to 1939 was estimated at 32 million ounces and 250,000ounces of gold *2 .

The district geology consists of a mix ofshallow-level, oxidized Au-Ag and base metal deposits related to CRDand skarns hosted in folded and thrusted sediments, intrusive dikes,and lode veins, and as well the under explored, sulfide versionslocated below the water table.

Host rocks to the mineralization are primarily theclastic sediments of the lowest portion of the Cretaceous BisbeeFormation.  Between 50 and 300 meters (m) in depth, the Bisbee isunderlain by approximately two kms thick of the same Paleozoic carbonate formations that host the 110 MTHermosa-Taylor zinc-lead-silver deposit of South32 located 60 kmsouthwest of Tombstone *3 .

Aztec believes that the historic silver mines atTombstone could be related to a much larger mesothermal system withCRD mineralization below the old mines.  Since 2017, Aztec hascompleted geological mapping, geochemical sampling and geophysicalsurveying to identify the most prospective areas for Au-Agmineralization around and below the Contention open pit, and CRDzinc-lead-copper-silver-gold mineralization below the entire district. Aztec management views the district as highly prospective for thediscovery of mesothermal and CRD mineralization.

Summary Tombstone ProjectHighlights

• Well located property on patented (33) and unpatented (73) claims (663 hectares /1639 acres), covers much of the historic Tombstone silver miningdistrict, great infrastructure, local town, road access, fullservices, water, power

• Historic silver district *2 produced 32 million ounces of silver and 250,000 ounces ofgold from 1878-1939, in high grade, oxidized,silver-gold-lead-zinc-copper vein, breccia and CRD deposits, and smallopen pit heap leach production in late 1980’s

• Drilling by Aztec in 2020-24 has demonstrated that the Contention Pit targethas significant, shallow. oxidized Au-Ag bulk tonnage mineralizationwhich is open in all directions

• Multiple other prospectivetarget s in Cretaceous and Paleozoic rocksrelated to major NW and NNE trending structures hosting porphyriticintrusions crosscutting a possible caldera ring structure

* Aztec hasnot verified these historic results and is not relying on them. Aztec has in its possession the historic drill logs, maps andreports but does not have any information on the quality assurance orquality control measures taken in connection with these historicalexploration results.

Noted References:

1 – “Zonge International, AMT Survey, TombstoneProject, Cochise County, AZ, Data Acquisition and Processing Report,Prepared for Aztec Minerals, 18 May 2020, Zonge Job #20013”

2 – Greeley, Michael N., ABrief History and Review of Ore Grades and Production in the TombstoneMining District with Emphasis on the Contention Mine Area, June1984

3 - M3 Engineering and Technology Corp., HermosaProject N.I. 43-101F1 Pre-Feasibility Study, January 2014

The scientific and technical information contained inthis news release has been reviewed and approved by Allen David Heyl,B.Sc., CPG – AIPG No.11277, VP Exploration of Aztec, a QualifiedPerson under NI43-101. Mr. Heyl supervises the Tombstone explorationprograms.  Mr. Heyl has verified the data, which included a review ofthe sampling, analytical and test methods underlying the data,information and opinions disclosed herein.

“Simon Dyakowski”

Simon Dyakowski , ChiefExecutive Officer

Aztec Minerals Corp.

About Aztec Minerals – Aztec is a mineral exploration company focused on twoemerging discoveries in North America. The Cervantes project is anemerging porphyry gold-copper discovery in Sonora, Mexico. TheTombstone project is an emerging gold-silver discovery with high gradeCRD silver-lead-zinc potential in southern Arizona. Aztec’s sharestrade on the TSX-V stock exchange (symbol AZT) and on the OTCQB(symbol AZZTF).

Contact Information - For more information, pleasecontact:

Simon Dyakowski, President & CEO, Director

Tel: (604) 685-9770
Fax: (604) 685-9744
Email: info@aztecminerals.com

Website: www.aztecminerals.com

Neither the TSXV nor its Regulation Services Provider(as that term is defined in the policies of the TSXV) acceptsresponsibility for the adequacy or accuracy of this release. No stockexchange, securities commission or other regulatory authority hasapproved or disapproved the information contained herein.

Forward-Looking Statements:

This news release contains“forward?looking information or statements” within the meaningof applicable securities laws, which may include, without limitation,completing ongoing and planned work, statements relating to advancingthe Tombstone Project, drill and sampling results including additionalpotential work and results therefrom, the Company’s plans for itsTombstone Project, potential for further expansion of themineralization at the Tombstone Project, expected results andoutcomes, the technical, financial and business prospects of theCompany, its project and other matters. All statements in this newsrelease, other than statements of historical facts, that addressevents or developments that the Company expects to occur, areforward-looking statements. Although the Company believes theexpectations expressed in such forward-looking statements are based onreasonable assumptions, such statements are not guarantees of futureperformance and actual results may differ materially from those in theforward-looking statements. Such statements and information are basedon numerous assumptions regarding present and future businessstrategies and the environment in which the Company will operate inthe future, including the price of metals, the ability to achieve itsgoals, that general business and economic conditions will not changein a material adverse manner, that financing will be available if andwhen needed and on reasonable terms. Such forward-looking informationreflects the Company’s views with respect to future events and issubject to risks, uncertainties and assumptions, including the risksand uncertainties relating to the interpretation of explorationresults, risks related to the inherent uncertainty of exploration andcost estimates and the potential for unexpected costs and expenses,and those filed under the Company’s profile on SEDAR+ atwww.sedarplus.ca. Factors that could cause actual results to differmaterially from those in forward looking statements include, but arenot limited to, continued availability of capital and financing andgeneral economic, market or business conditions, adverse weather orclimate conditions, failure to maintain or obtain all necessarygovernment permits, approvals and authorizations, failure to obtain ormaintain community acceptance (including First Nations), decrease inthe price of gold, silver and other metals, increase in costs,litigation, and failure of counterparties to perform their contractualobligations. The Company does not undertake to updateforward?looking statements or forward?looking information, exceptas required by law.

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