Gold Hart talks Tolita geophysical survey results

Executive Summary

• Gold Hart Copper Corp. announced significant expansion of its geophysical anomalies at the flagship Tolita gold-copper-molybdenum-silver asset in the Vicuna district of Chile, with the main chargeability anomaly increasing by 50% in length and 76% in area.
• The company completed a geochemical survey and constructed new access roads at its Nessa gold and copper properties, where previously unknown historic mining pits containing visible copper minerals were discovered.
• Drilling is ongoing at Tolita to test the highest chargeability portion of the anomaly, with a deep diamond drill hole (DDHTOL01) projected to reach 700–1,100 meters before the end of the month.

Key Details

• Tolita Geophysical Survey Results:
  • The second geophysical survey confirmed a significant extension of the main chargeability anomaly to the north and at depth.
  • Length Increase: The anomaly expanded from 1.6 kilometers to 2.4 kilometers (approx. 50% increase).
  • Area Increase: The anomaly expanded from approximately 2.5 square kilometers to 4.5 square kilometers (approx. 76% increase).
  • Depth Extension: The conductive anomaly continues and expands at depth, consistent with gold-copper or copper-gold porphyry systems.
  • Structural Findings: A steeply dipping conductor, likely related to a fault, was better defined on new deep lines (2600N and 452200E), indicating a probable structure extending very deeply with strong resistivity contrast, acting as a conduit for hydrothermal water flow.
• Nessa Properties Updates:
  • Road Construction: New roads were constructed into the Nessa, Pingo, and Manto Carolina properties.
  • New Discoveries: During road construction, previously unknown historic mining pits with visible copper minerals (malachite and chrysocolla) were discovered on surface.
  • Geochemical Survey: A geochemical survey was completed immediately after road construction; samples are being sent to the lab for analysis.
  • Historic Context: The Nessa properties host 13 historic artisanal high-grade gold and copper pits. Previous surface samples showed grades up to 25 g/t gold, 3.25% copper, and 958 g/t silver.
• Tolita Drilling Update:
  • Current Activity: The company is drilling a deeper diamond drill hole (DDHTOL01) designed to test the highest chargeability portion of the geophysical anomaly.
  • Projected Depth: The hole is projected to reach between 700 meters and 1.1 kilometers.
  • Completion Timeline: Completion is projected before the end of the month.
  • Previous Results (April–May 2025): Two holes of approx. 600 meters each confirmed a fertile porphyry system.
  • Geological Observations: Early-stage veining near surface provided evidence of a porphyry-related system within zones of moderate chargeability. The mineral intercepts occur within a multigeneration stockwork vein system hosted by multiphase porphyry intrusions. Potassic alteration becomes increasingly dominant at greater depth, accompanied by more intense and continuous veining.

Notable Quotes

• Joseph Jordan, Chief Geophysicist at Argali Geofisica: "The chargeability anomaly extends another 800 metres north and also extends to greater depths, together with a strong and well-defined conductive feature... This would indicate to me that the probable structure extends very deeply and has a strong contrast in resistivity with the host rock. Because it is conductive, it should act as good conduit for hydrothermal water flow, which should be good news for mineralization. There is confirmation that the alteration system extends to greater depth and may increase in intensity at depth as it is more conductive. Hopefully, the copper and gold grades would increase correspondingly as well."