Eleventh Resource Group Company (TSXV: Zeng) (Otkbk: GRLVF) (FSE: 3GE) (“Group eleven“or”a company“”) is pleased to announce new assay results from drill hole 26-3552-57 at the Ballywire discovery (“Baliwire“”) in the 100% owned PG West project (“PJ West“), Republic of Ireland.
Highlights:
- 26-3552-57 – Drilling 80m west of 51-3552-25 (which intersects 52.3m of 10.3% Zn+Pb, 330 g/t Ag, 0.40% Cu; announced 25 February 2026):
- 62.5 meters of 5.6% Zn+Pb and 25 g/t Ag (at the base of the Waulsortian Limestone; starting at 329 meters downhole; announced 28 May 2026), including 11.8 meters of 13.4% Zn+Pb and 45 g/t Ag
- Today I announced new tests that appear nine (9) Mineralization areas of the Deeper Cu-Ag target (starting at the bottom of the 400 m depth), with highlights as follows:
- 14.9 m 53 g/t Ag and 0.08% Cu, incl.
- 2.8 m 143 grams/ton Ag, 0.31% copperincluding.
- 0.9 m 371 grams/ton Ag, 0.82% Cu and 0.10% SB; and
- 2.8 m 143 grams/ton Ag, 0.31% copperincluding.
- 6.6m of 83 g/t Ag, 1.60% Cu and 0.19% SB.including.
- 1.0 m 279 g/t Ag, 5.62% Cu and 0.78% SB and
- 2.8 m 110 g/t Ag, 5.09% Cu and 0.44% SBincluding.
- 0.6 m 506 g/t Ag, 23.60% Cu and 2.04% SB
- Four rigs continue to operate at Ballywire with an additional rig active at the adjacent Stonepark project with a 77.64% interest.
“Today’s result of 23.60% copper represents some of the highest copper grades obtained by any operator over the past 60 years of modern mineral exploration history in Ireland,” said Bart Jaworski, CEO. “This high-grade intersection, accompanied by 506 g/t Ag and 2.04% Sb, is one of nine zones of mineralization, some of which also graded up to 5.62% Cu, 371 g/t Ag and 0.78% Sb.”
“Today’s results also represent the seventh drill hole and fourth drill fence at Ballywire to intersect Deeper Cu-Ag mineralization to date. Not including the 720m exit announced in our last press release (28 May 2026) which demonstrates what appears to be the start of a new zone of Deeper Cu-Ag mineralization, the three highest-rated Cu-Ag drill fences drilled to date now represent an impressive 430m in length. The new evidence provides us with conviction.” Growing that Deeper Cu-Ag mineralization may extend across the entire Ballywire Zn-Pb-Ag discovery, which is currently known to extend approximately 3.2km along the 6km potential trend with strong reservoir and our most ambitious drilling campaign to date – supported by our $12 million funding in March, allowing funded drilling to increase from 20,000m to approximately 67,000-75,000m – we are ready to continue unlocking the full potential for this discovery.
Exhibit 1. Cross section AA’ showing today’s results from 26-3552-57 at Ballywire
Note: True mineralization thickness as a percentage of downhole interval is estimated at 70-90% for today’s results from 26-3552-57.
Figure 2. Schematic map of the main Ballywire discovery corridor, showing new assays
Note: The bright green label showing 430 meters indicates how well the drilling test for the Deeper Cu-Ag mineralization occurred.
Figure 3. Summary of today’s new tests from 57-3552-26 at Ballywire
Note: The true thickness of Deeper Cu-Ag mineralization as a percentage of the downhole interval is estimated to be 70-90%; “-” means less than 0.01%
Figure 4. Summary of previously announced tests from 57-3552-26 in Ballywire
Note: True mineralization thickness as a percentage of the downhole interval is estimated at 90-100%.
Ballywire Drill software update
The Ballywire exploration at the company’s 100%-owned PG West project in the Republic of Ireland represents the most significant mineral discovery in Ireland in more than a decade. This discovery was first announced in September 2022, and contains 79 holes drilled and reported by Group Eleven to date, including today’s results from 26-3552-57 which add to the partial tests announced on 28 May 2026. All of today’s results are summarized above and below (see Exhibits 1 to 5).
Exhibit 5. Regional gravity map showing the projected 6 km trend at Ballywire
Note: Of the four high-gravity anomalies mentioned above, only Anomaly “C” has been systematically drilled so far.
The mineralization reported today consists mostly of Cu-Ag bearing zones containing chalcopyrite and suspected tennantite-tetrahedral, with minor sphalerite, galena and pyrite. Four rigs continue to actively drill at Ballywire. currently, fifteen (15) New holes are completed (and in the process recorded, sampled and calibrated) or in the drilling process. These are shown in Exhibits 1, 2 and 5.
Due to the Company’s recent financing of C$12.0 million (closed on 11 March 2026), the funded drilling program has increased from C$20,000 million to between C$67,000 and C$75,000 (subject to detailed planning), largely allocated to Ballywire, with the remainder at Stonepark.
Notes for Figure 6: (a) Pallas Green MRE is owned by Glencore (see Glencore Resources and Reserves Report dated 31 December 2025); (b) Stonepark MRE: See “NI 43-101 Independent Report on the Stonepark Zinc Lead Exploration Project, County Limerick, Ireland,” by Gordon, Kelly, and van Lente, effective April 26, 2018, as found on SEDAR+; (c) the historical estimate at Denison was reported by Westland Exploration Limited in “Report on Exploration License No. 464” prepared by Dermot Hughes dated May 1988; The historical estimate at Gortdrum was reported in “Geology and Genesis of the Gortdrum Cu-Ag-Hg Orebody” by GM Steed dated 1986; The historic estimate at Tullacondra was first reported by Munster Base Metals Ltd in a ‘Report on the Mallow Property’ by David Wilbur, dated December 1973; It was later summarized in “Cu-Ag mineralization at Tullacondra, Mallow, Co. Cork” by Wilbur and Carter in 1986; The above three historical estimates have not been verified as current mineral resources; None of the key assumptions, parameters and methods used to prepare historical estimates are reported and no resource categories are used; Significant data collection, re-excavation and data verification by a qualified person may be required before historical estimates can be verified and upgraded to meet current NI 43-101 standards; The qualified person has not done sufficient work to classify them as current mineral resources and the Company does not treat historical estimates as current mineral resources. The ‘Rathdowney trend’ is the south-west projection of the Rathdowney trend, which hosts the historic Lechine and Galmoy mines.
Figure 6. Regional map of the Ballywire discovery and surrounding horizons
Qualified person
The technical information contained in this press release has been approved by Professor Garth Earls, Eur Geol, P.Geo, FSEG, the geological consultant at IGS (International Geoscience Services) Limited, and an independent “qualified person” as defined under Canadian National Instrument 43-101.
Sampling and analytical procedures
All Ballywire drilled core is NQ (47.6mm) and is cut using a rock saw. Sample intervals range from 0.34 m to 0.99 m with an average (over 157 samples) of 0.92 m. Semi-core samples are packed, labeled and sealed at Group Eleven’s core store facility in Limerick, Ireland. Selected sample bags are inspected by qualified person. Transportation will be via authorized courier service and/or by Group Eleven staff to ALS Laboratories in Co. Loughrea, Galway, Ireland. Sample preparation at the ALS facility included fine crushing to 70% < 2 mm, a shotgun separator, and crushing to 250 g 85% < 75 µm. The analytical procedures consist of 34 four-component 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 includes Certified Reference Materials (“CRMs” or “standards”), as well as blanks, into its sample collection as part of an industry-standard QA/QC program. The quality control results were reviewed by a qualified person, who was satisfied that all results fell within acceptable standards. A qualified person has validated the sampling protocols and chain of custody used by Group XI. Drilling data (slope, azimuth and depth) for today’s release will be published on the GroupEleven website in due course.
About the resources of the eleventh group
Group Eleven Resources Corp. (TSXV: ZNG) (OTCQB: GRLVF) (FSE: 3GE) has drilled the most significant mineral discovery in the Republic of Ireland in more than a decade. The company announced the Ballywire discovery in September 2022, which showed high grades of zinc, lead, silver, copper, germanium and antimony locally. The main objections so far include:
- 10.8 m of 10.0% Zn+Pb and 109 g/t Ag (G11-468-03)
- 10.5 m of 14.7% Zn+Pb, 399 g/t Ag and 0.31% Cu (G11-468-12)
- 29.6 m of 10.6% Zn+Pb, 78 g/t Ag and 0.15% Cu (G11-3552-12) and
- 11.8 m of 11.6% Zn+Pb, 48 g/t Ag (G11-3552-18)
- 15.6 m of 11.6% Zn+Pb, 122 g/t Ag and 0.19% Cu (G11-3552-27)
- 12.0 m 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)
- 39.7 m3 of 9.5% Zn+Pb, 131 g/t Ag and 0.27% Cu (25-3552-35)
- 25.6 m of 9.2% Zn+Pb, 28 g/t Ag (25-3552-39)
- 52.3 m3 of 10.3% Zn+Pb, 330 g/t Ag and 0.40% Cu (25-3552-51), including
- 8.4 m of 18.2% Zn+Pb, 1776 g/t Ag, 2.21% Cu and 0.18% Sb (25-3552-51)
- 23.5 m of 12.3% Zn+Pb and 46 g/t Ag (25-3552-53)
- 2.8 meters of 110 g/t Ag, 5.09% Cu, 0.44% Sb (26-3552-57)
Ballywire is located 20km from Stonepark’s 77.64%-owned lead and zinc stock.(1)which itself is located adjacent to Glencore’s Pallas Green zinc and lead deposits(2). The company’s two largest shareholders are Michael Gentile (13.7% stake) and Glencore Canada (12.9%). Additional information about the company is available at www.groupelevenresources.com.
Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.
Cautionary note regarding forward-looking information
Technical and scientific information disclosed from neighboring properties does not necessarily apply to the current project or property being disclosed. This press release contains forward-looking statements within the meaning of applicable securities legislation. These statements include, but are not limited to, statements regarding the future results of operations, performance and achievements of the Company, including the timing, content, cost and results of proposed work programs, discovery and identification of mineral deposits/resources/reserves and geological interpretations. Although the Company believes these statements to be reasonable, it can give no assurance that these expectations will prove to be correct. Forward-looking statements are typically identified by words such as: believe, expect, anticipate, intend, estimate, assume and similar expressions, or are those that by their nature refer to future events. The Company cautions investors that any forward-looking statements made by the Company are not guarantees of future results or performance, and that actual results may differ materially from those in the forward-looking statements as a result of various factors, including, but not limited to, differences in the nature, quality and quantity of any mineral deposits that may be present. All of the Company’s public disclosure files can be accessed via www.sedarplus.ca Readers are encouraged to review these materials, including the technical reports provided regarding the company’s mineral properties.
(1) Stonepark MRE is 5.1 million tons of 11.3% Zn+Pb (8.7% Zn and 2.6% Pb), inferred (17 April 2018)
(2) Pallas Green MRE is 45.4 million tons of 8.4% Zn+Pb (7.2% Zn + 1.2% Pb), inferred (Glencore, 31 December 2025)
