Aztec Minerals expands Tombstone drilling to 8,500 m

Executive Summary

• Aztec Minerals Corp. has expanded its 2025 drilling program at the Tombstone Project in Arizona, increasing the total planned drilling from 7,500 metres to at least 8,500 metres, with completion expected into Q1 2026.
• The company has completed 34 reverse circulation (RC) drill holes and 13 reported holes to date, totaling 5,960 metres of RC drilling and 495 metres of core drilling.
• Core drilling has resumed, specifically targeting the TR24-13 target in hole TC25-03, with plans to test deep conductive bodies identified via NSAMT surveys under the Bisbee formation.

Key Details

• Drilling Expansion: The joint venture management committee approved an expansion of the drill program from 7,500 metres to at least 8,500 metres.
• Program Composition: The expanded program comprises 7,000 metres of RC drilling and a minimum of 1,500 metres of core drilling.
• Timeline: The expanded program is expected to extend into the first quarter of 2026.
• Progress to Date:
  • 34 RC drill holes completed.
  • 13 drill holes reported (referencing releases from Aug. 14, Sept. 23, and Oct. 31, 2025).
  • 5,960 metres of RC drilling completed.
  • 495 metres of core drilling completed.
  • 21 RC drill holes currently awaiting geochemical analysis at Bureau Veritas.
• Core Drilling Specifics:
  • Resumed drilling in hole TC25-03, reaching a total depth of 465 metres (advanced from 282 metres).
  • Targeting TR24-13.
  • Future core drilling will re-enter holes to test depth targets under the Bisbee formation in thick Paleozoic carbonate formations.
  • NSAMT surveys have identified large, strong, conductive bodies underneath the historic gold-silver district.
• Analytical Updates: Sample backlogs and turnaround times at Bureau Veritas are expected to improve due to staff additions and equipment repairs; additional results expected within 30 days.
• QA/QC Protocols:
  • Samples collected every 1.52 m from RC chips and core sawing.
  • Analyzed by Bureau Veritas (independent lab) for gold using method FA430 followed by MA300 (30-gram sample size).
  • Overlimits analyzed by MA370 or FA530.
  • Samples shipped to Hermosillo, Mexico lab; QA/QC evaluated with good results.
• Project Context:
  • Aztec holds an 85.0% interest in the Tombstone property joint venture.
  • Main target: Shallow, bulk tonnage, potentially heap-leachable, mesothermal gold-silver oxide mineralization adjacent to and below the historic Contention pit.
  • Historic district produced 32 million ounces of silver and 250,000 ounces of gold (1878–1939).
  • Host rocks include Cretaceous Bisbee formation and underlying Paleozoic carbonates.
  • Aztec views the district as highly prospective for mesothermal and CRD mineralization.

Notable Quotes

• No direct quotes from the CEO or President were included in the provided text.