Irving talks Yamagano drilling, completes soil sampling

Executive Summary

• Irving Resources Inc. reported assay results from drill hole 25SY-002A at the Yamagano Joint Venture in Kyushu, Japan, identifying the deepest and highest-grade gold intersection to date, confirming the epithermal system extends to depths of at least 450 meters below historical mining operations.
• The company completed a comprehensive grid soil sampling program (Phase I-III) covering 5.88 square kilometers, yielding significant surface geochemical anomalies, including a peak rock sample of 86.8 g/t Au and soil samples exceeding 7.94 g/t Au.
• Irving announced proposed exploration plans for 2026, including potential drilling on the Yamagano Mining Right (MR) held by partner Shimadzu Ltd., following the preparation of a draft master plan.

Key Details

• Drill Hole 25SY-002A Results:
  • Drilled to a depth of 951.8 meters at Yamagano East.
  • Collar located 1.07 km south of hole 25SY-001.
  • Targeted the southern deep resistive feature identified by AMT data.
  • Intersected multiple anomalous gold-bearing intervals associated with silicification and stockwork veining.
  • Highest Grade Intersection: 2.11 g/t Au from 837.43 m to 838.33 m.
  • Results indicate mineralization extends to depths of at least 450 meters below historical mining operations.
• Drill Hole 25SY-003 Status:
  • Located 500 meters south of 23SY-001; drilled to 900.30 meters.
  • Targeted the same resistive feature as previous holes (23SY-001 and 24SY-002) from the south to test the southern flank and deeper levels.
  • Logged three notable zones of hydrothermal alteration (silicification and veining) at approximately 130 m, 300 m, and 625 m.
  • Assaying is currently underway.
• Soil Sampling Program Completion:
  • Conducted from February through December 2025 across 5.88 square kilometers.
  • Total samples collected: 673 soil samples and 57 surface rock samples.
  • Surface Rock Samples: Peak value of 86.8 g/t Au and 43.4 g/t Ag from a quartz vein sample.
  • Phase I Soil Results: Multiple samples >1,000 ppb Au; highest value 7,940 ppb Au (7.94 g/t Au) and 5.2 g/t Ag, located 500 meters southwest of historical mine workings.
  • Anomalous trends for gold, silver, arsenic, mercury, and antimony detected extending eastward, southward, and southwestward from historical workings.
  • Methodology: Phase I used conventional B-horizon sampling; Phases II and III used Deep-Sensing Geochemistry (DSG).
  • Sample spacing: 200 meters apart with 50-meter intervals.
• Proposed 2026 Exploration Plans:
  • Potential drilling to commence on the Yamagano MR held by Shimadzu Ltd. in 2026.
  • Draft master plan for drilling activities is currently being prepared.
  • Focus areas include the northern part of the broader Yamagano vein system (little formal mining conducted) and the central eastern portion of the Yamagano MR (covered by Hokusatsu younger andesite, largely untested by drilling).
• Joint Venture Structure:
  • Yamagano JV partners: Newmont Overseas Exploration Ltd. (60%), Sumitomo Corp. (12.5%), and Irving Resources Inc. (27.5%).
• Technical Methodology:
  • Samples analyzed by ALS Global in Brisbane, Australia.
  • Gold and silver analyzed by fire assay with AA finish; overlimit samples by fire assay with gravimetric finish.
  • Gold equivalent calculated as Gold + (Silver / 80).
  • Qualified Person: Dr. Quinton Hennigh, PhD, PGeo.