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Aztec Minerals Corp. Drilling Expands Oxide Gold-Silver Zone Step Outs at Tombstone;

14.05.2026  |  ACCESS Newswire

Intersecting 2.31 gpt Au and 43.23 gpt Ag over 27.4 m within 66.9 m of 1.05 gpt Au and 23.21 gpt Silver


Aztec Minerals Corp. (TSX-V:AZT)(OTCQB:AZZTF) ("Aztec" or the "Company") announces the results from 5 drill holes from its reverse circulation ("RC") portion of the 2025-2026 drilling program at the Tombstone Property in Southeastern Arizona. Step out drilling expanding to the west and north Contention target area of the property has discovered additional strong, wide, shallow oxide gold-silver intersections. The Contention mineralized zone has been further extended to the west and to depth. The 17,000m 2025-2026 drilling program has now completed 70 RC and 8 core drill holes.

Highlights from the RC drilling reported for the Contention target include:

All of the five RC drillholes reported herein intersected Au-Ag mineralization and have joined and expanded portions of the Contention target area to the west and to depth. The intercepts show broad continuity of mineralization. All reported intersection lengths are apparent widths of mineralization, not true widths, which can range at the property from 30% to 100% of apparent widths.

Aztec Minerals CEO Simon Dyakowski commented: "The results from TR26-15 through TR26-19 are another step in what we believe is a significant expansion of the Tombstone project. These multiple thick, near-surface high-grade intercepts continue to extend the Contention zone to the west and to depth, with several holes ending in mineralization. What was historically considered as a modest open pit appears to be the upper portion of a much larger oxide gold-silver system that remains open in multiple directions. With nine RC holes pending and our first-pass drilling underway across the Westside, Hard-up and Southwest targets - including the Ingersoll and Independence areas more than a kilometre from the historic pit - each new round of results adds to the case that the project's ultimate scale will look very different from the historic footprint."

Figure 1. Plan map showing drill hole collars from the 2025-2026 drill campaign at the Tombstone Property, southeastern Arizona.

Core Drilling Update

The core drilling portion of the program in 2026 continues with drilling ongoing with 8 attempted core holes in the program and one in progress. TC26-05 is currently targeting the northern CRD target after a downhole EM survey of TC25-03 was completed last month. Eight core holes (TC25-01, 02, 03, 04 and TC26-01, 02, 03, 04) have been attempted and a ninth (TC26-05) is currently being advanced (650m) testing the northern CRD target. Core hole TC26-02 is the deepest in the program to date, drilled to 862m.

The core drilling program was designed to test the deep targets of the Project comprising the targeting of the large, southern and southwestern NSAMT targets and the historic T-8 drillhole CRD intercept, with some metallurgical core sample collection as well.

A synopsis for the core drilling follows:

Core drilling to-date has confirmed the NSAMT targets as based on geologic (Skarn) anomalies within the upper portion of the NSAMT targets. It was planned to continue drilling to depth in TC25-04; however, drillhole caving terminated the hole. Aztec had previously identified several large, strong, conductive bodies, underneath the historic gold-silver project through NSAMT (natural-source audio-frequency magneto-telluric surveys) anomalies1.

The continued, successful drilling of the Contention pit area was supported by Aztec's 3D geologic and underground workings model that was constructed to assist in targeting potential expansion of the Contention system. The overall Contention system has yet to be defined and marks the confluence of other mineralized zones including the Westside Anticline.

Detailed Drillhole Summary Highlights (see Table 1 & 2 below):

View drill sections here:

Link to section view holes TR26-15 TR26-16 and TR26-18
Link to section view hole TR26-17
Link to section view holes TR26-19

Table 1A: Drill Results Currently Reported

Drill Hole

From (m)

To (m)

Interval (m)*

Au (gpt)

Ag (gpt)

AuEq (gpt)

Comments

TR26-15

92.7

139.8

47.1

0.214

13.26

0.456

156.6

200.6

44.0

0.096

3.42

0.157

TD in minz

TR26-16

57.9

147.8

89.8

0.223

10.96

0.423

164.6

181.3

16.7

0.065

5.54

0.166

195.1

198.1

3.0

0.077

5.7

0.181

TD in minz

TR26-17

62.5

67.1

4.6

0.613

2.13

0.651

82.3

204.2

121.9

0.294

11.3

0.499

TD in minz, workings @ 111.2-114.3 m, 118.9-121.9 m

Including

85.3

97.5

12.2

1.017

14.54

1.281

TR26-18

0.0

53.2

53.2

0.775

31.94

1.356

Including

25.8

44.1

18.2

1.909

79.07

3.346

79.0

100.3

21.3

0.132

4.41

0.212

111.0

164.2

53.2

0.084

6.246

0.198

TR26-19

13.7

80.6

66.9

1.050

23.21

1.472

Including

30.4

57.8

27.4

2.309

43.23

3.095

88.2

107.9

19.8

0.162

6.68

0.283

114.0

135.3

21.3

0.395

12.37

0.620

142.9

167.2

24.3

0.092

7.14

0.221

174.8

199.1

24.3

0.105

10.0

0.286

TD in minz

Note 1: Gold and Silver equivalents are calculated using the recovery percentages from third party metallurgical testing of RC drill pulps completed Jan. 21, 2026 of 81.5% for Au and 75.9% for Ag and using the average prices from Jan.1 2026 to May 1,2026 (US$4,817 Au, US$81.36 Ag) a ratio of 59.2:1, with the elemental recovery differences a 55:1 silver:gold ratio for holes reported. Note has been reported 70:1 for November 2025 to February 2026, 90:1 in 2025 prior to November, 80:1 in 2023 and 2024, and a 70:1 silver:gold ratio in 2021.

2025-2026 Drill Program

The 70 RC drill holes in the current 2025-26 program completed to date primarily are part of a "fan grid pattern" being drilled in the Contention area since 2020. Most of the RC drill holes are oriented to test for extensions on the western, eastern borders, the southern extensions, and underneath the north-trending main Contention target zone which hosts the historic underground and open pit Contention mine. Several RC drill holes tested targets in the Westside and Hard-up areas on projected anticline, dike and fissure vein intersections under mineralized outcrops and historic shafts. The drill program has continued to identify to depth and horizontally pervasively oxidized and hematite-rich, silicified hydrothermal breccias composed of quartz feldspar porphyry dike and Bisbee Group clastic sedimentary fragments, typical of the material mined historically at the Contention Mine.

Additional mineralization types continued to be outlined by the current drilling including: manganese replacements in limestone beds and skarns, quartz veinlets, oxidized sulfide relicts as disseminations, silicification of altered hornfels, quartz feldspar porphyries and hydrothermal breccias.

The RC drilling program is targeting shallow zones associated with surface exploration and 3D geological modelling, prospective for wide oxide gold-silver mineralization, and drilling pre-collars for the deeper CRD targets. The drill program has completed 40 RC and RC precollar drill holes in 2025 and 27 RC and one RC precollar drill hole since the start of 2026, focusing on testing both the Contention Main and Southern Extension areas as step out targets and Westside and Hard-up areas first pass targets, with results from the five RC holes (TR26-15 - 19) now announced. Initial assay results continue to validate the oxide gold-silver geological setting as outlined in Aztec's geological exploration model. Eight core holes (TC25-01, 02, 03, 04 and TC26-01, 02, 03, 04) have been attempted and a ninth (TC26-05) is currently being advanced (650m) testing the northern CRD target.

The primary objectives of the 2025-26 drilling program were to: Expand the known mineralization horizontally to the west, north and south, and down dip beyond the holes drilled by Aztec in 2020-24 at the Contention Pit with step outs to enlarge the shallow, broad, bulk tonnage gold-silver mineralization discovered there; test by core drilling the initial deep CRD targets and also, to explore with first pass drilling new targets identified in the Westside area. The drilling results showed that the Contention area mineralization is still open at depth and the mineralized volume is expanding.

Table 1B: Tombstone 2026 Reported Results

Drill Hole

From (m)

To (m)

Interval (m)*

Au (gpt)

Ag (gpt)

Au Eq (gpt) (1)

Comments

TR26-01

51.7

72.9

21.3

0.038

11.76

0.208

Working 71.4 - 73.0 m no sample

86.6

110.9

24.3

0.039

13.37

0.230

Last 4 samples in working, no recovery

TR26-02

0.0

19.8

19.8

0.136

12.62

0.316

54.7

60.8

6.1

0.088

13.67

0.284

91.2

100.3

9.1

0.094

5.65

0.175

130.7

147.4

16.7

0.076

2.76

0.115

TR26-03

147.4

161.1

13.7

0.069

3.73

0.122

167.2

177.8

10.6

0.103

7.21

0.206

193.0

205.2

12.2

0.149

8.7

0.273

TR26-04

53.2

63.8

10.6

0.057

8.17

0.173

147.4

161.1

13.7

0.040

4.16

0.1

168.7

188.5

19.8

0.220

13.75

0.416

TR26-05

16.7

36.5

19.8

0.223

8.78

0.358

60.8

73.0

12.2

0.117

3.85

0.172

80.6

130.7

50.2

0.112

4.90

0.182

136.8

158.1

21.3

0.117

11.44

0.280

165.7

174.8

9.1

0.086

4.65

0.152

182.4

217.4

35.0

0.119

5.95

0.204

231.0

255.3

24.3

0.091

3.6

0.142

TD in minz

TR26-06

31.9

47.1

15.2

0.124

4.06

0.182

62.3

69.9

7.6

0.223

11.66

0.390

88.2

120.1

31.9

0.159

3.86

0.214

130.7

158.1

27.4

0.057

29.22

0.474

202.2

261.5

59.3

0.104

4.96

0.175

TD in minz

TR26-07

50.2

162.6

112.4

0.479

12.64

0.659

Working 59.3 to 62.3 m

173.2

185.4

12.2

0.127

8.11

0.243

221.9

238.6

16.7

0.049

7.49

0.156

TD in minz

TR26-08

121.6

129.2

7.6

0.576

8.4

0.696

TR26-09

35.0

45.6

10.6

0.069

9.06

0.199

53.2

59.3

6.1

0.181

13.1

0.367

158.1

164.1

6.1

0.041

7.37

0.147

TR26-10 PC

112.5

118.6

6.1

0.162

9.15

0.293

TR26-11

100.3

200.6

100.3

0.173

11.46

0.337

TR26-12

100.3

149.0

48.6

0.172

18.04

0.430

TR26-13

18.2

27.4

9.1

0.056

8.27

0.174

63.8

68.8

4.6

0.132

3.33

0.180

85.1

91.2

6.1

0.039

5.00

0.110

194.5

200.6

6.1

0.062

4.275

0.123

TR26-14

0.0

10.6

10.6

0.195

13.00

0.381

39.5

147.4

107.9

0.618

24.80

0.972

176.3

225.0

48.6

0.091

8.11

0.206

234.1

243.2

9.1

0.121

10.67

0.267

TD in minz

TR26-15

92.7

139.8

47.1

0.214

13.26

0.456

156.6

200.6

44.0

0.096

3.42

0.157

TD in minz

TR26-16

57.9

147.8

89.8

0.223

10.96

0.423

164.6

181.3

16.7

0.065

5.54

0.166

195.1

198.1

3.0

0.077

5.7

0.181

TD in minz

TR26-17

62.5

67.1

4.6

0.613

2.13

0.651

82.3

204.2

121.9

0.294

11.3

0.499

TD in minz, workings @ 111.2-114.3 m, 118.9-121.9 m

Including

85.3

97.5

12.2

1.017

14.54

1.281

TR26-18

0.0

53.2

53.2

0.775

31.94

1.356

Including

25.8

44.1

18.2

1.909

79.07

3.346

79.0

100.3

21.3

0.132

4.41

0.212

111.0

164.2

53.2

0.084

6.246

0.198

TR26-19

13.7

80.6

66.9

1.050

23.21

1.472

Including

30.4

57.8

27.4

2.309

43.23

3.095

88.2

107.9

19.8

0.162

6.68

0.283

114.0

135.3

21.3

0.395

12.37

0.620

142.9

167.2

24.3

0.092

7.14

0.221

174.8

199.1

24.3

0.105

10.0

0.286

TD in minz

Table 2 - 2026 Drillhole Coordinates

Drill Hole

UTM East

UTM North

Azimuth

Inclination

Total Depth (m)

TR26-01

588429

3508259

40

70

117.4

TR26-02

588463

3507996

10

60

231.7

TR26-03

588670

3508001

105

80

274.4

TR26-04

588712

3508065

105

60

207.3

TR26-05

588625

3507804

105

60

256.1

TR26-06

588625

3507751

105

65

262.2

TR26-07

588792

3507896

100

60

239.3

TR26-08

588445

3508184

18

65

175.3

TR26-09

588487

3508275

114

-65

219.5

TR26-10

588271

3507282

105

-80

274.4

TR26-11

588653

3507717

109

-60

250.0

TR26-12

588699

3507669

125

-70

237.8

TR26-13

588455

3508123

110

-50

219.5

TR26-14

588669

3508049

230

-68

243.9

TR26-15

588756

3508067

105

-58

201.2

TR26-16

588812

3508045

105

-68

198.2

TR26-17

588837

3508056

145

-70

204.3

TR26-18

588879

3508034

105

-75

182.9

TR26-19

588857

3507943

105

-75

208.8

Drill samples are collected every 1.52 m from RC chips and every 1.5m from sawing the core drill holes. The samples are analyzed by Bureau Veritas for gold with a 30-gram sample size using the method FA430 followed by MA300. Bureau Veritas is independent of the Company and of the Qualified Person. Over limits, when present, are analyzed by MA370 or FA530. The company uses quality assurance-quality control as a standard part of its sampling-assaying-assessments in conjunction with its exploration sampling programs. Samples and their collection are controlled by an industry standard conforming QAQC program including all drill holes containing certified blanks, standards, and duplicates. The samples are being regularly shipped to and received by the Bureau Veritas Minerals laboratory in Hermosillo, Mexico for geochemical analysis. The QAQC for the drilling programs has been evaluated and found to have good results.

Tombstone Project Overview

Aztec Minerals holds a 85.0% interest in the Tombstone Property Joint Venture, which includes most of the original patented mining claims in the main district as well as some recently acquired properties.

The main target of the current drilling is to continue testing the shallow, bulk tonnage, potentially heap leachable, mesothermal gold-silver oxide mineralization adjacent and below the previously mined Contention pit by step-out drilling. Future drilling is expected to focus on follow-up on the current program's results. It is anticipated that possible targeting could include strike and dip extensions of the shallow oxide mineralization, and move along those trends deeper into the sulfide zone as historically there was significant production to 300 m depth*2.

The Tombstone project is located 100 kilometers (km) southeast of Tucson, Arizona and covers much of the historic Tombstone silver district. Tombstone is renowned for its high grade, oxidized, silver-gold mesothermal stringer lode veins, hydrothermal breccias and manto CRD orebodies that were mined in the late 1800's and early 1900's. The historic silver production in the Tombstone district from 1878 to 1939 was estimated at 32 million ounces and 250,000 ounces of gold*2.

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

Host rocks to the mineralization are primarily the clastic sediments of the lowest portion of the Cretaceous Bisbee Formation. Between 50 and 300 meters (m) in depth, the Bisbee is underlain by approximately two kms thick of the same Paleozoic carbonate formations that host the Hermosa-Taylor zinc-lead-silver deposit of South32 located 60 km southwest of Tombstone.

Aztec believes that the historic silver mines at Tombstone could be related to a much larger mesothermal system with CRD mineralization below the old mines. Since 2017, Aztec has completed geological mapping, geochemical sampling and geophysical surveying to identify the most prospective areas for Au-Ag mineralization around and below the Contention open pit, and CRD zinc-lead-copper-silver-gold mineralization below the entire district. Aztec management views the district as highly prospective for the discovery of mesothermal and CRD mineralization.

Summary Tombstone Project Highlights

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

Noted References:

1 - "Zonge International, AMT Survey, Tombstone Project, Cochise County, AZ, Data Acquisition and Processing Report, Prepared for Aztec Minerals, 18 May 2020, Zonge Job #20013"

2 - Greeley, Michael N., A Brief History and Review of Ore Grades and Production in the Tombstone Mining District with Emphasis on the Contention Mine Area, June 1984

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

"Simon Dyakowski"

Simon Dyakowski, Chief Executive Officer

Aztec Minerals Corp.

About Aztec Minerals - Aztec is a mineral exploration company focused on two emerging discoveries in North America. The Cervantes project is an emerging porphyry gold-copper discovery in Sonora, Mexico. The Tombstone project is an emerging gold-silver discovery with high grade CRD silver-lead-zinc potential in southern Arizona. Aztec's shares trade on the TSX-V stock exchange (symbol AZT) and on the OTCQB (symbol AZZTF).

Contact Information - For more information, please contact:

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) accepts responsibility for the adequacy or accuracy of this release. No stock exchange, securities commission or other regulatory authority has approved or disapproved the information contained herein.

Forward-Looking Statements:

This news release contains "forward?looking information or statements" within the meaning of applicable securities laws, which may include, without limitation, completing ongoing and planned work, statements relating to advancing the Tombstone Project, drill and sampling results including additional potential work and results therefrom, the Company's plans for its Tombstone Project, potential for further expansion of the mineralization at the Tombstone Project, expected results and outcomes, the technical, financial and business prospects of the Company, its project and other matters. All statements in this news release, other than statements of historical facts, that address events or developments that the Company expects to occur, are forward-looking statements. Although the Company believes the expectations expressed in such forward-looking statements are based on reasonable assumptions, such statements are not guarantees of future performance and actual results may differ materially from those in the forward-looking statements. Such statements and information are based on numerous assumptions regarding present and future business strategies and the environment in which the Company will operate in the future, including the price of metals, the ability to achieve its goals, that general business and economic conditions will not change in a material adverse manner, that financing will be available if and when needed and on reasonable terms. Such forward-looking information reflects the Company's views with respect to future events and is subject to risks, uncertainties and assumptions, including the risks and uncertainties relating to the interpretation of exploration results, risks related to the inherent uncertainty of exploration and cost estimates and the potential for unexpected costs and expenses, and those filed under the Company's profile on SEDAR+ at www.sedarplus.ca. Factors that could cause actual results to differ materially from those in forward looking statements include, but are not limited to, continued availability of capital and financing and general economic, market or business conditions, adverse weather or climate conditions, failure to maintain or obtain all necessary government permits, approvals and authorizations, failure to obtain or maintain community acceptance (including First Nations), decrease in the price of gold, silver and other metals, increase in costs, litigation, and failure of counterparties to perform their contractual obligations. The Company does not undertake to update forward?looking statements or forward-looking information, except as required by law.

SOURCE: Aztec Minerals Corp.