Geomorphic AI Offers Riikonkoski Copper-Gold Project in Finland for Joint Venture - Historic Copper System Shows High-Grade Gold Potential and Remains Open at Depth

Portland, Oregon and Helsinki, Finland--(Newsfile Corp. - August 20, 2026) - Geomorphic AI ("Geomorphic" or the "Company"), an AI-driven minerals prospect generator, is pleased to announce that it has completed a new archive compilation and digital reconstruction of the Riikonkoski Copper-Gold Project ("Riikonkoski" or the "Project") in Finland's Central Lapland Greenstone Belt.

The work highlights a compelling opportunity to re-evaluate a historic copper system for gold. The Geological Survey of Finland ("GTK") completed 110 drill holes totaling approximately 22,162 metres across Riikonkoski and its satellite prospects between 1969 and 1974, defining five copper zones. However, historic exploration was overwhelmingly focused on copper, with less than 5% of the drilled metreage ever assayed for gold.

Subsequent re-assaying of stored GTK core and pulps returned individual gold samples grading up to 39.0 g/t Au and 28.9 g/t Au, while historic composite intervals reported by Taranis Resources include 6.0 metres at 6.75 g/t Au and 0.48% Cu and 6.0 metres at 5.69 g/t Au and 1.38% Cu.

Geomorphic holds the 6,087-hectare Project through granted mineral reservation VA2026:0034 and is making Riikonkoski available for joint venture, earn-in or sale.

No modern drilling has been completed at the Project and no hole has tested the system below approximately 400 metres.

Geomorphic AI VP of Business Development, Jeff Phillips said: "Riikonkoski is a 1970s copper discovery inside one of Europe's most active gold districts, but it was never subjected to a gold-first exploration programme. Less than a twentieth of the historic drilling was assayed for gold, and nearly every significant gold sample we recovered occurs within the existing copper system. That gives a partner a very clear starting point: re-assay the untested historic core, verify the strongest stored-core intervals and drill beneath a system where copper remains above 1% within 40 metres of the deepest hole ever drilled. The system has already been found - the gold question and the depth question are still open."

PROJECT HIGHLIGHTS

• Drilled copper system with historical scale
  GTK completed 110 historic drill holes totaling approximately 22,162 metres across Riikonkoski and its satellite prospects. Across the three copper zones GTK considered reliably estimated, historical, non-compliant estimates total approximately 9.5 Mt grading 0.48% Cu, including 2.45 Mt grading 0.68% Cu at East Ore. These estimates are historical and are not current Mineral Resources.

• Gold was largely overlooked

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