Recent Reverse Circulation Drilling Program At The Tombstone Property

VANCOUVER – Aztec Minerals Corp. reported on the second 5 holes of its reverse circulation portion of the 2025 drilling program at the Tombstone Property in Southeastern Arizona.  The 2025 drilling program has now completed 19 RC drill holes, with results from an additional 5 holes announced herein.  Visual observations of the drilled sample materials and assay results continue to validate Aztec’s geological exploration model.  As a result, the Tombstone Property JV Management Committee met last week and approved an expansion of the drill program from an initially planned 5,000-meter program, to 7,500 meters, and is expected to be extended to the end of Q4 2025.

Highlights include drill hole TR25-06 in the Little Joe Area which returned 556.5 grams per tonne (gpt) silver and 17.7 gpt gold (2149.5 gpt silver equivalent (AgEq) using a 90:1 silver:gold ratio) over 3.04 meters (m) within 28.9m of 70.8 gpt silver and 1.993 gpt gold, starting from 76.0m depth.  TR25-05 returned 238.7 gpt Ag and 3.91 gpt Au (590.4 gpt AgEq) over 4.5m within 47.1m of 85.5 gpt AgEq (36.4 gpt Ag and 0.55 gpt Au).

Additionally, drill hole TR25-08, collared 70m west of the previous drillhole TR24-02 returned two zones of mineralization of 74.5 m at 36.4 gpt AgEq (19.8 gpt Ag and 0.184 gpt Au) including 12.2 m of 155.8 gpt AgEq (94.5 gpt Ag and 0.681 gpt Au), and the second zone finished in 31.9 m at 13.7 gpt AgEq (6.0 gpt Ag and 0.085 gpt Au).  All reported intersection lengths reported are apparent widths of the mineralization, not true widths, which can range at the property from 30% to 100% of apparent widths.

The core drilling portion of the program is continuing to test to depth for the previously identified AMT target under the Bisbee formation in the thick Paleozoic carbonate formations below.  Aztec has previously identified several large, strong, conductive bodies, underneath the historic gold-silver district through NSAMT (natural-source audio-frequency magneto-telluric surveys) anomalies.

CEO Simon Dyakowski said, “The high-grade silver-gold intersection drilled in TR25-06 demonstrates the continued discovery of high-grade precious metal mineralization that the historic Tombstone Silver District is best known for.  This intersection of 2149.5 gpt Silver Equivalent over 3 meters is situated nearly 200 meters northeast of our highest-grade silver drill intersection drilled last year in TR24-16.  We are encouraged by the continued interceptions of the Contention zone of mineralization to the West.  We are eagerly awaiting the receipt of additional results and are pleased to announce the expansion of drilling to what is now expected to be our largest ever campaign on the back of strong initial assay results of the first 10 holes of the program.”