Group Eleven Cuts Deeper Cu-Ag Mineralization in 710m Step-Out; Drills 3.7m of 7.7% Zn+Pb, 418 g/t Ag and 1.02% Cu in a Wider 17.6m Interval; Returns Mineralization in First Hole at ‘Anomaly A’
Group Eleven Cuts Deeper Cu-Ag Mineralization in 710m Step-Out;
Drills 3.7m of 7.7% Zn+Pb, 418 g/t Ag and 1.02% Cu in a Wider
17.6m Interval; Returns Mineralization in First Hole at ‘Anomaly A’
Vancouver, Canada, August 20, 2026 - Group Eleven Resources Corp. (TSX -V: ZNG; OTC QB: GRLVF;
FRA: 3GE) (“Group Eleven” or the “ Company”) is pleased to announce assay results from four holes
at its Ballywire discovery (“Ballywire”) at the 100%-owned PG West Project (“PG West”), Ireland.
Highlights:
• 26-468-24 – Testing Deeper Cu -Ag target at the SW end of discovery area (710m away from
nearest hole testing similar mineralization) and filling a 180m gap between prior drilling, returned:
• 3.6m of 345 g/t Ag, 0.75% Cu (starting at 449m downhole), incl.
o 0.6m of 2120 g/t Ag, 4.50% Cu and 0.27% Sb
• 26-3552-56 – Drilled at the NE end of currently defined discovery area and filling a 110m gap
between previous drilling, returned:
• 17.6m of 4.1% Zn+Pb (2.6% Zn and 1.5% Pb), 111 g/t Ag, 0.27% Cu (starting at 30 5m
downhole, hosted within the Waulsortian Limestone), incl.
o 10.2m of 3.7% Zn+Pb (2.3% Zn and 1.4% Pb), 182 g/t Ag, 0.46% Cu, incl.
▪ 3.7m of 7.7% Zn+Pb (5.4% Zn and 2.3% Pb), 418 g/t Ag, 1.02% Cu
• 26-3552-60 – Drilled approx. 80m downdip of 26-3552-57 (which intersected strong Deeper Cu-
Ag mineralization totalling 6.6m of 83 g/t, 1.60% Cu, 0.19% Sb ; and 2.8m of 110 g/t, 5.09% Cu,
0.44% Sb; see news release dated 11-Jun-2026) returned:
• 2.3m of 126 g/t Ag, 1.01% Cu, 0.12% Sb (starting from 501m downhole), incl.
o 0.2m (0.19cm) of 1355 g/t Ag, 11.00% Cu, 1.30% Sb and
• 15.4m of 39 g/t Ag and 0.82% Cu, incl.
o 7.5m of 77 g/t Ag, 1.61% Cu and 0.17% Sb, incl.
▪ 0.7m of 643 g/t Ag, 13.95% Cu, 1.42% Sb and
• 6.4m of 41 g/t Ag and 0.88% Cu, incl.
o 2.7m of 77 g/t Ag and 1.67% Cu
• 26-468-25 – First ever hole drilled at gravity ‘Anomaly A’ (approx. 2km to the SW of the currently
outlined discovery limits), returned multiple intervals, intermittently throughout the hole, of trace
malachite, chalcopyrite, suspected tennantite -tetrahedrite, sphalerite and galena , plus steeply
south-dipping faults , suggesting the presence of a mineralizing system much further SW than
previously known; above results are highly encouraging; follow up drilling planned in near term
“Today’s results represent significant progress on several fronts at Ballywire ,” stated Bart Jaworski,
CEO. “First, we have demonstrated high-grades of Cu-Ag-Sb along the SW end of the currently defined
discovery area, 710m away from the nearest such test . Second, a wide zone of Cu -Ag (with Zn+Pb)
mineralization was intercepted at the NE end of the discovery area, relatively shallow and within the
Waulsortian Limestone. Third, significant Deeper Cu-Ag mineralization was drilled in an 80m step-out
returning up to 1355 g/t Ag, 13.95% Cu and 1.42% Sb. Lastly, and perhaps most interestingly, first-ever
drilling at gravity-high ‘Anomaly A’ returned trace tennantite -tetrahedrite, typically observed within
the high-grade structures in the main discovery area, suggesting drilling at Anomaly A may be close to
a feeder zone. Four rigs continue to be active at Ballywire.”
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Exhibit 1. Cross-Section A-A’ Showing Today’s Results from 26-468-24 at Ballywire
Note: True thickness of mineralization as a percentage of the down-hole interval, is estimated to be 85-95% and 45-60% for
Waulsortian-hosted and Deeper Cu-Ag mineralization, respectively, in today’s results from 26-468-24
Exhibit 2. Plan Map of Main Ballywire Discovery Corridor, Showing New Assays
Note: Yellow labels denote today’s results; Red question marks illustrate potential for a SW -trending parallel zone of
mineralization
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Exhibit 3. Cross-Section B-B’ Showing Today’s Results from 26-3552-56 at Ballywire
Note: True thickness of mineraliz ation as a percentage of the down -hole interval, is estimated to b e 90-100% and 70-80%
for Waulsortian-hosted and Deeper Cu-Ag mineralization, respectively, from today’s results from 26-3552-56
Exhibit 4. Cross-Section C-C’ Showing Today’s Results from 26-3552-60 at Ballywire
Note: True thickness of mineraliz ation as a percentage of the down -hole interval, is estimated to b e 65-80% fo r today’s
results (Deeper Cu-Ag mineralization) from 26-3552-60
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Ballywire Drill Update
The Ballywire prospect at the Company’s 100% -owned PG West Project in Republic of Ireland,
represents the most significant mineral discovery in Ireland in over a decade. First announced in Sept-
2022, the discovery has 8 6 holes drilled and reported by Group Eleven to date, including today’s
results from three new holes (26-468-24, 26-468-25 and 26-3552-56), plus the remaining assays from
26-3552-60 (initially announced on 07 -Jul-2026). All of today’s results are summarized above and
below (see Exhibits 1 to 9).
Mineralization reported today consists predominantly of sphalerite, galena and pyrite, with Cu -Ag
bearing zones containing malachite, chalcopyrite and suspected tennantite -tetrahedrite. Today’s
results represent some of the strongest Cu -Ag intervals achieved at Ballywire to date. In addition to
the above description, note that 26-468-25 at ‘Anomaly A’ returned strongly anomalous assay values
(see Exhibit 7 and 8), including 1.0m of 15 g/t Ag and 0.09% Cu.
Potential for a parallel trend (as illustrated by red question marks in Exhibit 2), began to emerge earlier
this year with several recently announced holes (including 25-468-19 and 26 -468-23), as further
exemplified by today’s results from 26 -468-24. This hole also adds further evidence that Deeper Cu-
Ag mineralization may extend across the entire Ballywire Zn-Pb-Ag discovery, currently known to span
3.2km along a prospective trend of 6km.
Four rigs continue to be actively drilling at Ballywire. Currently, thirteen (13) new holes are completed
(and in the process of being logged, sampled and assayed) or in the process of being drilled. These are
shown in Exhibits 2 to 4. The Company has a robust treasury bolstered by a $12m financing in March,
allowing go-forward funded drilling to increase from 20,000m to approx. 67,000-75,000m.
Exhibit 5. Summary of Today’s New Assays from 26-468-24 at Ballywire
Item From
(m)
To
(m)
Int
(m)
Zn
(%)
Pb
(%)
Zn+Pb
(%)
Ag
(g/t)
Cu
(%)
Sb
(%)
26-468-24 381.77 384.58 2.81 0.31 0.09 0.40 2.0 - -
And 389.13 391.89 2.76 1.43 0.24 1.68 3.7 - -
And 398.40 404.78 6.38 0.35 0.05 0.40 1.0 - -
Incl. 403.90 404.78 0.88 0.56 0.06 0.62 0.7 - -
And 413.72 428.18 14.46 0.68 1.29 1.97 15.6 0.04 -
Incl. 417.50 428.18 10.68 0.77 1.44 2.21 19.3 0.05 -
Incl. 417.50 421.99 4.49 1.08 3.01 4.10 22.1 0.02 -
Incl. 417.50 418.34 0.84 2.17 6.52 8.69 28.7 0.01 -
And 421.03 421.99 0.96 1.69 5.88 7.57 52.1 0.05 -
And 433.63 438.14 4.51 0.37 0.37 0.74 27.3 0.04 -
Incl. 434.55 436.35 1.80 0.72 0.86 1.57 58.4 0.09 0.01
Incl. 434.55 434.85 0.30 2.59 4.69 7.28 311.0 0.48 0.03
And 449.00 452.61 3.61 0.48 0.11 0.59 345.4 0.75 0.04
Incl. 450.73 451.30 0.57 2.12 0.50 2.62 2120.0 4.50 0.27
Note: True thickness of mineralization as a percentage of the down-hole interval, is estimated to be 85-95% and 45-60% for
Waulsortian-hosted (above 428.2m) and Deeper Cu-Ag mineralization (below 428.2m), respectively, in today’s results from
26-468-24; ‘-‘ means less than 0.01%
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Exhibit 6. Summary of Today’s New Assays from 26-3552-56 and 26-3552-60 at Ballywire
Item From
(m)
To
(m)
Int
(m)
Zn
(%)
Pb
(%)
Zn+Pb
(%)
Ag
(g/t)
Cu
(%)
Sb
(%)
26-3552-56 305.30 322.85 17.55 2.58 1.51 4.09 110.6 0.27 0.01
Incl. 306.19 310.76 4.57 4.12 2.55 6.67 13.0 0.01 -
And 312.61 322.85 10.24 2.34 1.37 3.70 182.3 0.46 0.02
Incl. 313.56 317.25 3.69 5.42 2.26 7.68 417.9 1.02 0.03
Incl. 315.34 316.30 0.96 3.70 3.35 7.05 926.0 2.21 0.04
And 400.65 400.97 0.32 - 0.01 0.01 13.8 0.13 -
And 429.93 430.09 0.16 0.60 - 0.60 179.0 6.73 1.01
And 436.66 437.58 0.92 0.01 - 0.01 18.9 0.14 0.02
And 498.73 499.63 0.90 0.03 0.01 0.04 44.9 0.39 0.10
26-3552-60 412.83 417.61 4.78 0.04 0.14 0.18 54.2 0.18 0.04
Incl. 416.64 417.61 0.97 0.04 0.13 0.17 114.0 0.35 0.12
And 454.20 456.04 1.84 - 0.08 0.09 50.7 0.09 0.01
And 494.85 504.36 9.51 0.03 0.01 0.03 34.0 0.27 0.03
Incl. 500.59 502.84 2.25 0.10 - 0.10 126.1 1.01 0.12
Incl. 502.65 502.84 0.19 1.09 0.00 1.09 1355.0 11.00 1.30
And 530.58 545.94 15.36 0.05 0.01 0.07 39.2 0.82 0.09
Incl. 538.41 545.94 7.53 0.10 0.02 0.12 76.9 1.61 0.17
Incl. 539.00 539.74 0.74 0.79 - 0.79 643.0 13.95 1.42
And 582.59 585.36 2.77 0.01 - 0.01 26.0 0.14 0.03
And 604.07 633.75 29.68 0.01 0.01 0.01 17.0 0.43 0.01
Incl. 605.03 609.70 4.67 - 0.01 0.01 29.7 0.67 -
Incl. 605.03 607.85 2.82 0.01 0.01 0.01 38.4 0.91 -
Incl. 605.03 605.96 0.93 - 0.01 0.01 80.7 1.78 -
And 627.35 633.75 6.40 0.02 - 0.02 41.1 0.88 0.03
Incl. 631.02 633.75 2.73 0.03 - 0.03 77.1 1.67 0.03
Incl. 631.02 632.00 0.98 - - 0.01 121.0 2.23 -
Note: True thickness of mineralization as a percentage of the down -hole interval, is estimated to be 90 -100% and 70-80%
for Waulsortian-hosted (above 323.7m) and Deeper Cu-Ag mineralization (below 323.7m), respectively, from today’s results
from 26-3552-56; and 65-80% for today’s results (Deeper Cu-Ag mineralization; below 391.3m) from 26-3552-60; ‘-‘ means
less than 0.01%
6
Exhibit 7. Cross-Section D-D’ Showing Today’s Results from 26-468-25 from Gravity ‘Anomaly A’
Note: Malachite is a copper carbonate hydroxide (typically a weathering product of chalcopyrite) ; chalcopyrite is a copper
sulphide; tennantite-tetrahedrite is a copper sulfosalt mineral series ; galena is a lead sulphide ; and sphalerite is a zinc
sulphide; true widths are unknown
Exhibit 8. Regional Gravity Map Showing 6km Long Prospective Trend at Ballywire
Note: Of the four gravity-high anomalies above, only the ‘C’ anomaly has been systematically drilled to date
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Exhibit 9. Regional Map of Ballywire Discovery and Surrounding Prospects
Notes to Exhibit 9: (a) Pallas Green MRE is owned by Glencore (see Glencore’s Resources and Reserves
Report dated December 31, 2025); (b) Stonepark MRE: see the ‘NI 43-101 Independent Report on the
Zinc-Lead Exploration Project at Stonepark, County Limerick, Ireland’, by Gordon, Kelly and van Lente,
with an effective date of April 26, 2018, as found on SEDAR+; and (c) the historic estimate at Denison
was reported by Westland Exploration Limited in ‘Report on Prospecting Licence 464’ by Dermot
Hughes dated May, 1988; the historic estimate at Gortdrum was reported in ‘The Geology and Genesis
of the Gortdrum Cu -Ag-Hg Orebody’ by G.M. Steed dated 1986; and the historic estimate at
Tullacondra was first reported by Munster Base Metals Ltd in ‘Report on Mallow Property’ by David
Wilbur, dated December 1973; and later summarized in ‘Cu-Ag Mineralization at Tullacondra, Mallow,
Co. Cork’ by Wilbur and Carter in 1986; the above three historic estimates have not been verified as
current mineral resources; none of the key assumptions, parameters and methods used to prepare
the historic estimates were reported and no resour ce categories were used; significant data
compilation, re-drilling and data verification may be required by a Qualified Person before the historic
estimates can be verified and upgraded to be compliant with current NI 43-101 standards; a Qualified
Person has not done sufficient work to classify them as a current mineral resource and the Company
is not treating the historic estimates as current mineral resources. ‘Rathdowney Trend’ is the south -
westerly projection of the Rathdowney Trend, hosting the histori c Lisheen and Galmoy mines.
Mineralization and resource estimates relating to nearby properties are not necessarily indicative of
the mineralization on the Company’s assets.
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Qualified Person
Technical information in this news release has been approved by Professor Garth Earls , Eur Geol,
P.Geo, FSEG , geological consultant at IGS (International Geoscience Services) Limited , and
independent ‘Qualified Person’ as defined under Canadian National Instrument 43-101.
Sampling and Analytical Procedures
All core drilled at Ballywire is NQ (47.6mm) and is cut using a rock saw. Sample intervals vary between
0.09m to 2.92m with an average (over 634 samples) of 1.08m. The half-core samples are bagged,
labelled and sealed at Group Eleven’s core store facility in Limerick, Ireland. Selected sample bags are
examined by the Qualified Person. Transport is via an accredited courier service and/or by Group
Eleven staff to ALS Laboratories in Loughrea Co. Galway, Ireland. Sample preparation at the ALS facility
comprises fine crushing 70% < 2mm, riffle splitter, pulverise up to 250g 85% < 75um. Analytical
procedures are 34 element four acid ICP-AES (codes ME-ICP61 and ME-OG62). Other than paying for
a professional analytical service, Group Eleven has no relationship with ALS.
Quality Assurance/Quality Control (QA/QC) Information
Group Eleven inserts certified reference materials (“CRMs” or “Standards”) as well as blank material,
to its sample stream as part of its industry -standard QA/QC programme. T he QC results have been
reviewed by the Qualified Person, who is satisfied that all the results are within acceptable
parameters. The Qualified Person has validated the sampling and chain of custody protocols used by
Group Eleven. Drill data (dip, azimuth and depth) for today’s release will be posted on Group Eleven’s
website in due course.
About Group Eleven Resources
Group Eleven Resources Corp. (TSX.V: ZNG; OTCQB: GRLVF and FRA: 3GE) is drilling the most
significant mineral discovery in the Republic of Ireland in over a decade. The Company announced the
Ballywire discovery in September 2022 , demonstrating high grades of zinc, lead, silver, copper,
germanium and locally, antimony. Key intercepts to date include:
• 10.8m of 10.0% Zn+Pb and 109 g/t Ag (G11-468-03)
• 10.5m of 14.7% Zn+Pb, 399 g/t Ag and 0.31% Cu (G11-468-12)
• 29.6m of 10.6% Zn+Pb, 78 g/t Ag and 0.15% Cu (G11-3552-12) and
• 11.8m of 11.6% Zn+Pb, 48 g/t Ag (G11-3552-18)
• 15.6m of 11.6% Zn+Pb, 122 g/t Ag and 0.19% Cu (G11-3552-27)
• 12.0m of 560 g/t Ag, 2.30% Cu and 0.17% Sb (25-3552-31), including
• 6.4m of 838 g/t Ag, 3.72% Cu and 0.27% Sb (25-3552-31)
• 39.7m of 9.5% Zn+Pb, 131 g/t Ag and 0.27% Cu (25-3552-35)
• 25.6m of 9.2% Zn+Pb, 28 g/t Ag (25-3552-39)
• 52.3m of 10.3% Zn+Pb, 330 g/t Ag and 0.40% Cu (25-3552-51), including
• 8.4m of 18.2% Zn+Pb, 1776 g/t Ag, 2.21% Cu and 0.18% Sb (25-3552-51)
• 23.5m of 12.3% Zn+Pb and 46 g/t Ag (25-3552-53)
• 2.8m of 110 g/t Ag, 5.09% Cu, 0.44% Sb (26-3552-57)