Terra Balcanica Intercepts 607 g/t Ag Eq. Over 3.0 m and 670 g/t Ag Eq. Over 3.9 m At Cumavici in Bosnia and Herzegovina

Executive Summary

• Terra Balcanica announced high‑grade assay results from Phase III drilling at the Cumavici Ridge target, including intercepts of up to 2,115 g/t Ag Eq over 1.0 m and 842 g/t Ag Eq over 1.7 m.
• Results confirm a continuous, tabular high‑grade silver–antimony mineralized body that remains open down‑dip and along strike, supporting plans to test linkage to the adjacent Cumavici Crest target and further extensions up to ~650 m.
• The company highlighted upcoming 2026 drilling on the untested Cumurnica target located 1.5 km southwest of the current zone.

Key Details

• Drillhole CMV25005: 607 g/t Ag Eq over 3.0 m; includes a higher‑grade interval of 842 g/t Ag Eq (3.05 % Sb) over 1.7 m.
• Drillhole CMV25006: 670 g/t Ag Eq over 3.9 m; includes an exceptional intercept of 2,115 g/t Ag Eq (9.58 % Sb) over 1.0 m.
• Step‑out holes:
• ~65 m NW of CMV25004 – 636 g/t Ag Eq over 4.3 m.
• 38 m SW of CMVD005 – 326 g/t Ag Eq over 10 m.
• Geological context: Mineralization occurs in fault‑hosted, massive sulphide veins within a NW‑SE trending epithermal system; the zone is silver‑antimony dominant with associated Au, Pb, and Zn.
• Continuity & Expansion: Over two dozen positive drill holes now span ~180 m along strike and >200 m down dip; drilling will target linkage to Cumavici Crest (potentially extending mineralization to >650 m) and the nearby Cumurnica target in 2026.
• Assay methodology: AgEq calculated using metal price assumptions of $5,000/oz Au, $80/oz Ag, $1.45/lb Zn, $20/lb Sb, $0.86/lb Pb with recoveries of 90 % Au, 93 % Ag, 95 % Sb, 94 % Pb, 94 % Zn.
• QA/QC: Samples processed at ALS Bor (Serbia) and analyzed at ALS Loughrea (Ireland), ISO/IEC 17025:2017 certified; QA/QC inserts comprised 17 % of samples (CRMs, duplicates, blanks).
• Qualified Person: Dr. Aleksandar Mišković, President & CEO, NI 43‑101 QP, validated the release.

Notable Quotes

“Two additional drill intercepts confirm that we have begun to unequivocally define a tabular, high‑grade body of silver‑antimony dominant mineralization at Cumavici Ridge… Terra is now looking to drill test the linkage to the neighboring Cumavici Crest target and in doing so extend the mineralization to over 650 m along strike.” – Dr. Aleksandar Mišković, President & CEO

Materiality Assessment: Material – Positive (significant high‑grade intercepts that materially advance the understanding of a flagship exploration target and support near‑term drilling plans).