TERRA BALCANICA DRILLS 636 G/T AG EQ. OVER 4.3 M AT CUMAVICI RIDGE IN BOSNIA AND HERZEGOVINA Vancouver, British Columbia – February 23rd, 2026 – Terra Balcanica Resources Corp. (“Terra”
CSE:TERA | FRA:UB10 | OTCQB:TEBAF #1100 – 1111 Melville Street, Vancouver, BC, Canada V6E 3V6
TERRA BALCANICA DRILLS 636 G/T AG EQ. OVER 4.3 M AT CUMAVICI RIDGE IN
BOSNIA AND HERZEGOVINA
Vancouver, British Columbia – February 23rd, 2026 – Terra Balcanica Resources Corp. (“Terra”
or the “ Company”) (CSE:TERA; FRA:UB1 ; OTC:TEBAF) is pleased to announce further
high-grade assay results from the Phase III drill campaign at the Cumavici Ridge polymetallic,
epithermal vein zone within its principal Viogor-Zanik project in eastern Bosnia and Herzegovina.
Highlights
• Drillhole CMV25004 intersected 636 g/t Ag Eq. over 4.3 m including:
o 1,757 g/t Ag Eq over 0.8 m
o 1,319 g/t Ag Eq over 0.4 m
• CMV25004 has tested new ground with the collar located 54 m southeast of CMVDD003
which reported 465.5 g/t Ag Eq. over 8.7 m and 27 m SW of CMV23004 which reported
1,168 g/t Ag Eq. over 1.35 m;
• Results confirm the high-grade nature and continuity of mineralisation at Cumavici Ridge,
which marks just one vein system within the wider Cumavici license area;
• Mineralization at Cumavici remains open along strike and down dip to southwest;
• Additional Phase III drill testing of the Cumavici Ridge system continues.
Terra Balcanica CEO, Dr. Aleksandar Mišković, commented: “Terra continues proving up
our flagship shallow, fault hosted, epithermal system. The drill intercepts with individual samples
up to 7.23% Sb, 23.4% Zn 3.69 g/t Au and 420 g/t Ag alongside 12.5% Pb attest to the exceptional
base and precious metal endowment at Cumavici Ridge. The drilling will continue by focusing on
the system extension west ward and down dip. We are committed to advancing our portfolio of
critical metals and remain an exceptional investment opportunity considering the proximity of our
assets to the existing Sase mine infrastructure and our position adjacent to the European markets.”
Hole ID From
(m)
To
(m)
Length
(m)
Ag
(g/t)
Au
(g/t)
Sb
(%)
Pb
(%)
Zn
(%)
Ag Eq.
(g/t)
CMV25004 62.50 66.80 4.30 101 1.16 2.13 1.81 3.55 636
including 63.60 64.40 0.80 146 3.32 7.23 0.94 2.89 1757
including 65.20 65.60 0.40 420 1.12 4.22 1.38 2.05 1319
CMV25003 76.40 80.50 4.10 33 0.14 0.28 0.44 0.81 108
including 78.9 79.1 0.20 587 1.69 4.70 1.28 1.63 1606
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$4,950/oz for gold (Au), US$77/oz for silver
(Ag), US$1.49/lb for zinc (Zn), US$2 1/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 61.0 and 66.70 downhole in CMV25004 . Massive,
dark sulphide intervals can be observed in the lower box , correlating to the Ag-Sb mineralization whi le
banded honey brown segment in the central part of the upper core box indicates Zn -Pb rich zone (click
here to view image).
Drillcore Observations
The mineralisation encountered in drillholes CMV25003 and CMV25004 are examples of the
typical high grade, massive sulphides of polymetallic nature present within the Cumavici target .
The Cumavici Ridge mineralization, which includes the reported drillholes is just one example of
a series of underexplored polymetallic veins that form part of a regional NW/SE trending
epithermal system. Mineralization is typified by massive sulphides which can be broadly grouped
into a silver-antimony rich, sulphosalts-dominant interval and a colloform banded orange -purple
zinc-lead interval of massive sphalerite-galena.
Hole ID Easting Northing Elevation
(m) Dip Azimuth Depth
(m)
Recovery
(%)
CMV25003 360187 4888450 603 -86.18 59.28 96.8 100
CMV25004 360184 4888450 602 -52.42 50.22 80.0 100
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. Geological map illustrating the drillholes at the Cumavici Ridge locality. AgEq values are
labelled for selected 2022 and 2023 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
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 2).
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
preparation PREP-31BY method was used on all core samples. This involves crushing to 70% less
CSE:TERA | FRA:UB10 | OTCQB:TEBAF #1100 – 1111 Melville Street, Vancouver, BC, Canada V6E 3V6
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 information 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, Snowbird, 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 (col lectively “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 c ause actual results or events to differ materially from
those anticipated in such forward-looking statements. Such forward-looking statements should not
be unduly relied upon. Actual results achieved may vary from the information provided herein as
CSE:TERA | FRA:UB10 | OTCQB:TEBAF #1100 – 1111 Melville Street, Vancouver, BC, Canada V6E 3V6
a result of numerous known and unknown risks and uncertainties and other factors. The Company
believes the expectations reflected in those forward -looking statements are reasonable, but no
assurance can be given that these expectations will prove to be correct. T he Company does not
undertake to update these forward-looking statements, except as required by law.