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 Vancouver, British Columbia – March 17th, 2026 – Terra Balcanica Resources Corp. (“Terra”
CSE:TERA | FRA:UB10 | OTCQB:TEBAF #1100 – 1111 Melville Street, Vancouver, BC, Canada V6E 3V6
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
Vancouver, British Columbia – March 17th, 2026 – Terra Balcanica Resources Corp. (“Terra”
or the “Company”) (CSE:TERA; FRA:UB1; OTC:TEBAF) is pleased to announce additional
high-grade assay results from the Phase III drill campaign at the Cumavici Ridge polymetallic,
epithermal vein target within its Viogor-Zanik project in eastern Bosnia and Herzegovina.
Highlights
• Drillhole CMV25005 intersected 607 g/t Ag Eq. over 3.0 m including:
o 842 g/t Ag Eq which includes 3.05% Sb over 1.7m;
• Drillhole CMV25006 intersected 670 g/t Ag Eq. over 3.9 m including:
o 2115 g/t Ag Eq which includes 9.58% Sb over 1.0 m;
• Step out drillholes located 65 m northwest of CMV25004 which reported 636 g/t Ag Eq.
over 4.3 m and 38 m SW of CMVD005 which intercepted 326 g/t Ag Eq. over 10 m;
• Results confirm the high-grade nature and continuity of mineralisation at Cumavici Ridge
along strike towards NW potentially linking it with the Cumavici Crest zone .
Mineralization remains open down dip to southwest;
• Cumavici Ridge -Crest fault -hosted system is one of the four targets along the largely
untested, 5 km long corridor of Ag-rich, base metal mineralization.
Terra Balcanica CEO, Dr. Aleksandar Mišković, commented: “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. With over two dozen positive drill holes spread over
180 m of along strike and testing the southwest -inclined structure to over 200 m down dip, 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. Furthermore, in 2026, we are poised to drill
previously untested Cumurnica target located only 1.5 km to the southwest.”
Hole ID From
(m)
To
(m)
Length
(m)
Ag
(g/t)
Au
(g/t)
Sb
(%)
Pb
(%)
Zn
(%)
Ag Eq.
(g/t)
CMV25005 96.0 99.0 3.00 175 0.69 2.11 1.94 4.05 607
including 97.3 99.0 1.7 258 1.15 3.05 1.34 2.67 842
CMV25006 91.4 95.3 3.90 168 0.72 2.84 0.66 0.56 670
including 92.7 93.7 1.00 461 1.84 9.58 1.39 1.11 2115
Table 1. Assay results from drillholes CMV25003 and CMV25004 with the interval lengths reported as
drilled lengths, not true widths given that true morphology of the mineralized zone is undetermined. Silver
equivalents (“AgEq”) are based on assumed metal prices of US$5,000/oz for gold (Au), US$80/oz for silver
(Ag), US$1.45/lb for zinc (Zn), US$2 0/lb for antimony (Sb) and US$0. 86/lb for lead (Pb). Assumed metal
recoveries of 90% Au, 93% Ag, 95% Sb, 94% Pb and 94% Zn were applied to all the laboratory assays and
are based on recent published metallurgical tests from analogous polymetallic deposits in Bosnia.
CSE:TERA | FRA:UB10 | OTCQB:TEBAF #1100 – 1111 Melville Street, Vancouver, BC, Canada V6E 3V6
Figure 1. Photograph of PQ3 diameter core between 97.0 and 99.60 m downhole in CMV25005 (top) and
between 90.8.0 and 93.60 m depth in CMV25006 (bottom). Massive, dark sulphide interval marked by green
box in the lower box correlates to the high-grade Sb mineralization while banded, dark brown segment in
the central part of the upper core box indicates Zn rich zone (click here to view image).
Drillcore Observations
The mineralized intervals intercepted by drillholes CMV25005 and CMV25006 are examples of
the typical high grade, massive sulphides of polymetallic nature encountered at Cumavici Ridge
since 2022. Mineralization is typified by massive sulphides which can be broadly grouped into a
silver-antimony rich, sulphosalts -dominant interval and a colloform banded brown grey, Pb-Zn
rich interval of massive sphalerite and galena. The Ag-Sb mineralization, which includes the
reported drillholes, is an example of a series of underexplored polymetallic veins that form part of
a regional NW-SE trending epithermal system. Others include: Cumurnica, Joseva, and Seoce.
Hole ID Easting Northing Elevation
(m) Dip Azimuth
(°)
Depth
(m)
Recovery
(%)
CMV25005 360133 4888481 610 -81.81 41.58 115.4 100
CMV25006 360133 4888481 610 -71.92 33.50 106.1 100
Table 2. Collar location and DDH data for the CMV25003/CMV25004 drillholes (WGS84/UTM 34N).
CSE:TERA | FRA:UB10 | OTCQB:TEBAF #1100 – 1111 Melville Street, Vancouver, BC, Canada V6E 3V6
Figure 2. Geo logical map illustrating the drillholes at the Cumavici Ridge locality. AgEq values are
labelled for selected 2022, 2023 and 2025 drill intercepts (See Company’s new releases dated 13 November
2023, 27 February 2023). The coordinate reference system is WGS84/UTM Zone 34N (click here to view
image).
Geology of Cumavici Ridge Target
The Cumavici license is dominated by volcanic rocks (tuffs and pyroclastic breccias) which have
been crosscut by generally NW-SE trending structures and are part of a large epithermal mineral
system. Mineralization is silver and antimony dominant with further gold-lead-zinc (Figure 1).
Terra’s drilling has confirmed three polymetallic systems so far: Joseva, Cumavici Crest, and the
flagship vein system at Cumavici Ridge. The Cumurnica and Kazani targets remain to be drilled.
Mineralisation is characterised by sphalerite- stibnite-galena and further sulphosalts minerals
which are associated with quartz and calcite veining and breccia cement. The mineralisation
occupies faults which crop out at surface as distinctive topographic lows, coinciding with magnetic
lows and often with mineralisation visible within fault gouge.
QA/QC
Half PQ3 core samples were delivered to ALS Bor, Serbia for sample preparation and analysis at
the ALS laboratory Loughrea, Ireland an ISO/IEC 17025:2017 certified testing laboratory. Sample
CSE:TERA | FRA:UB10 | OTCQB:TEBAF #1100 – 1111 Melville Street, Vancouver, BC, Canada V6E 3V6
preparation PREP-31BY method was used on all core samples. This involves crushing to 70% less
than 2 mm, rotary split 1kg and pulverizing the split to greater than 85% passing 75 microns. Gold
was assayed by 30g fire assay with ICP-AES finish (Au-ICP21). Analyses of silver and base metals
were completed by highly oxidising digestion with HNO3, KClO3 and HBr (ASY -ORE) and the
final solution in dilute aqua regia is determined by ICP -AES (ME-ICPORE). Control samples,
comprising certified reference materials (CDN-ME-1811), duplicates, and blanks were inserted at
a rate of 17 % and investigated as part of the company’s quality assurance and quality control
program.
Qualified Person
Dr. Mišković is the President and CEO of the company and the Company’s designated Qualified
Person within the meaning of National Instrument 43 -101 Standards of Disclosure of Mineral
Projects (“NI 43-101”). Dr. Mišković supervised the preparation of the in formation contained in
this news release and validated that the information is factual and accurate.
About the Company
Terra Balcanica is a polymetallic and energy metals exploration company targeting large -scale
mineral systems in the Balkans of southeastern Europe and norther n Saskatchewan, Canada. The
Company has 90% interest in the Viogor -Zanik Project in eastern Bosnia and Herzegovina. The
Canadian assets owned by its subsidiary Terra North Resources Corp. comprise a 100% optioned
portfolio of uranium-prospective licences at the outskirts of the world-renowned Athabasca basin:
Charlot-Neely Lake, Fontaine Lake, Snowbir d, and South Pendleton. The Company emphasizes
responsible engagement with local communities and stakeholders. It is committed to proactively
implementing Good International Industry Practice (GIIP) and sustainable health, safety, and
environmental management.
ON BEHALF OF THE BOARD OF DIRECTORS
Terra Balcanica Resources Corp.
“Aleksandar Mišković”
Aleksandar Mišković
President and CEO
For the complete information on this news release, please contact Aleksandar Mišković at
[email protected], +1 (514) 796-7577, or visit www.terrabresources.com/en/news.
Cautionary Statement
This news release contains certain forward -looking information and forward-looking statements
within the meaning of applicable securities legislation (collectively “forward -looking
statements”). The use of any of the words “will”, “intends” and similar expressions are intended
to identify forward- looking statements. These statements involve known and unknown risks,
uncertainties and other factors that may cause actual results or events to differ materially from
those anticipated in such forward-looking statements. Such forward-looking statements should not
CSE:TERA | FRA:UB10 | OTCQB:TEBAF #1100 – 1111 Melville Street, Vancouver, BC, Canada V6E 3V6
be unduly relied upon. Actual results achieved may vary from the information provided herein as
a result of numerous known and unknown risks and uncertainties and other factors. The Company
believes the expectations reflected in those forward -looking state ments are reasonable, but no
assurance can be given that these expectations will prove to be correct. The Company does not
undertake to update these forward-looking statements, except as required by law.