Group Eleven Resources Corp. (TSXV: ZNG,OTC:GRLVF) (OTCQB: GRLVF) (FSE: 3GE) (‘Group Eleven’ or the ‘Company’) is pleased to announce the latest two step-out drill holes from its Ballywire discovery (‘Ballywire’) at the 100%-owned PG West Project (‘PG West’), Republic of Ireland.

Highlights:

• 25-3552-47 (approx. 100m step-out SSE of 25-3552-40, initial test of the Deeper Cu-Ag target; announced 22-Sep-25) intersected four zones of mineralization, including:
  • New Mineralized Zone (South) – Waulsortian Hosted (starting from 313.1m downhole)
  • 20.3m of 2.6% Zn+Pb (1.5% Zn and 1.1% Pb), 6 g/t Ag, including
  • 7.3m of 5.2% Zn+Pb (2.5% Zn and 2.7% Pb), 10 g/t Ag, including
  • 3.8m of 7.3% Zn+Pb (3.7% Zn and 3.6% Pb), 14 g/t Ag, including
  • 1.9m of 10.7% Zn+Pb (5.7% Zn and 5.0% Pb), 19 g/t Ag
  • New Mineralized Zone (South) – Base of Waulsortian (starting from 355.9m downhole)
  • 2.6m of 2.7% Zn+Pb (0.1% Zn and 2.5% Pb) and 19 g/t Ag, including
  • 0.8m of 6.7% Zn+Pb (0.3% Zn and 6.5% Pb) and 37 g/t Ag
  • Deeper Cu-Ag Zone (starting from 490.7m downhole)
  • 11.3m of 0.26% Cu and 8 g/t Ag, including
  • 4.7m of 0.46% Cu and 14 g/t Ag, including
  • 1.8m of 0.83% Cu and 24 g/t Ag
  • Deeper Cu-Ag Zone (starting from 616.6m downhole)
  • 9.4m of 0.25% Cu and 7 g/t Ag, including
  • 3.7m of 0.32% Cu and 8 g/t Ag, including
  • 0.8m of 0.62% Cu and 16 g/t Ag

‘Today’s results represent a positive surprise given we were not expecting robust Zn-Pb-Ag mineralization south of the main discovery trend at this particular location,’ stated Bart Jaworski, CEO. ‘In addition to successfully extending significant Deeper Cu-Ag mineralization down dip by over 200m from previous drilling, today’s hole intersected strong Zn-Pb-Ag mineralization in a new part of the discovery. Long theorized, new zones of mineralization parallel to the main discovery trend at Ballywire were evidenced this September by hole 25-3552-44 which discovered a new Cu-Ag bearing feeder structure to the north of the main discovery. Today’s results show a similar situation, but to the south, enhancing the potential for at least two additional mineralized zones. If borne out, this greatly expands Ballywire’s tonnage potential.’

‘Driven by new zones of mineralization, growing momentum at our Deeper Cu-Ag zone and the fact that the majority of our 6km long prospective trend is yet to be drilled, Ballywire’s exploration upside continues to ramp up. With a robust treasury and our most ambitious drilling campaign to date – four rigs turning in Ireland – we are poised to continue unlocking Ballywire’s full potential over the coming months.’

Exhibit 1. Cross-Section Showing 25-3552-47 Testing Deeper Cu-Ag Zone at Ballywire.

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Note: True thickness of the mineralized intervals in hole 25-3552-47 as a percentage of the down-hole interval, is estimated to be approx. 90-100% for Waulsortian-hosted zones, and 60-80% for sub-Waulsortian zones.

Exhibit 2. Plan Map of Main Ballywire Discovery Corridor, Showing New Holes 25-3552-45 and -47.

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Note: ‘New Min’zd Zone (S)’ means New Mineralized Zone (South); ‘Potential Zone (N)’ means Potential Mineralized Zone (North).

Exhibit 3. Cross-Section of 25-3552-45 (and Previously Reported Holes -35 and -39).

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Note: True thickness of the mineralized intervals in hole 25-3552-45 as a percentage of the down-hole interval, is estimated to be approx. 80-100%.

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 64 holes drilled and reported by Group Eleven to date, including the most recent two holes (25-3552-45 and -47) reported today (see Exhibits 1 to 6).

Assays from today’s drill holes are summarized above and below (and in Exhibits 4 and 5). Mineralization consists predominantly of sphalerite, galena and pyrite, with the Cu-Ag bearing zones also containing chalcopyrite and suspected tennantite-tetrahedrite.

In addition to results from 25-3552-47, described above, hole 25-3552-45 intersected two zones of significant mineralization along a fault structure (see Exhibits 3 and 5). Strong exploration upside remains further to the NNW and SSE along this section.

Exhibit 4. Summary of Assays from 25-3552-47 at Ballywire

Note: True thickness of the mineralized intervals in hole 25-3552-47 as a percentage of the down-hole interval, is estimated to be approx. 90-100% for Waulsortian-hosted zones, and 60-80% for sub-Waulsortian zones; ‘-‘ means less than 0.01% (<100 ppm).

Exhibit 5. Summary of Assays from 25-3552-45 at Ballywire

Note: True thickness of the mineralized intervals in hole 25-3552-45 as a percentage of the down-hole interval, is estimated to be approx. 80-100%.

Drilling at Ballywire continues with three rigs. Currently, thirteen (13) new holes are completed or near completed (and in the process of being logged, sampled and assayed). These are shown in Exhibit 2, including: (i) four holes collared approx. 200m E of G11-3552-08; (ii) two holes testing approx. 780m SE of G11-3552-08; (iii) six holes drilled along a drill fence hosting G11-468-01; and (iv) one hole testing approx. 80m SW of G11-3552-12. Note, one additional rig is active at the Company’s Stonepark Project.

Exhibit 6. Regional Gravity Map Showing 6km Long Prospective Trend at Ballywire.

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Note: Of the four gravity-high anomalies above, only the ‘C’ anomaly has been systematically drilled to date.

Exhibit 7. Regional Map of Ballywire Discovery and Surrounding Prospects.

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Notes to Exhibit 7: (a) Pallas Green MRE is owned by Glencore (see Glencore’s Resources and Reserves Report dated December 31, 2024); (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 resource 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 historic Lisheen and Galmoy mines.

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 0.22m to 1.19m with an average (over 211 samples) of 0.90m. 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. The 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.

About Group Eleven Resources

Group Eleven Resources Corp. (TSXV: ZNG,OTC:GRLVF) (OTCQB: GRLVF) (FSE: 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)
• 10.1m of 8.6% Zn+Pb and 46 g/t Ag (G11-468-06)
• 10.5m of 14.7% Zn+Pb, 399 g/t Ag and 0.31% Cu (G11-468-12)
• 11.2m of 8.9% Zn+Pb and 83 g/t Ag (G11-3552-03)
• 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 1.4% Zn+Pb, 560 g/t Ag, 2.30% Cu and 0.17% Sb (25-3552-31), including
• 6.4m of 2.1% Zn+Pb, 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)

Ballywire is located 20km from Company’s 77.64%-owned Stonepark zinc-lead deposit¹, which itself is located adjacent to Glencore’s Pallas Green zinc-lead deposit². The Company’s two largest shareholders are Michael Gentile (14.1% interest) and Glencore Canada Corp. (13.9%). Additional information about the Company is available at www.groupelevenresources.com.

Neither 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 neighbouring 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. Such statements include, without limitation, statements regarding the future results of operations, performance and achievements of the Company, including the timing, content, cost and results of proposed work programs, the discovery and delineation of mineral deposits/resources/ reserves and geological interpretations. Although the Company believes that such statements are reasonable, it can give no assurance that such expectations will prove to be correct. Forward-looking statements are typically identified by words such as: believe, expect, anticipate, intend, estimate, postulate and similar expressions, or are those, which, by their nature, refer to future events. The Company cautions investors that any forward-looking statements by the Company are not guarantees of future results or performance, and that actual results may differ materially from those in forward looking statements as a result of various factors, including, but not limited to, variations in the nature, quality and quantity of any mineral deposits that may be located. All of the Company’s public disclosure filings may be accessed via www.sedarplus.ca and readers are urged to review these materials, including the technical reports filed with respect to the Company’s mineral properties.

¹ Stonepark MRE is 5.1 million tonnes of 11.3% Zn+Pb (8.7% Zn and 2.6% Pb), Inferred (Apr-17-2018).
² Pallas Green MRE is 45.4 million tonnes of 8.4% Zn+Pb (7.2% Zn + 1.2% Pb), Inferred (Glencore, Dec-31-2024).

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The Eastern Expansion Drill Program Identified Several Mineralized Northwest Structures Hosting Shallow Mineralization Encountered Within a 1.2 Kilometre Trend

EASTERN EXPANSION PROGRAM HIGHLIGHTS:

• At least three mineralized northwest oriented structures have been identified within the 1.2 kilometre eastern expansion trend running parallel to the Pittsburg-Monarch fault that suggest a series of footwall fault splays as opposed to a singular east-west structure;
• TXC25-173 cut 0.92 metres of 2,122.7 grams per tonne (g/t) silver equivalent (AgEq) (1,162 g/t silver (Ag) & 8.79 g/t gold (Au)) from 220.9 metres, and a separate zone of 1.04 metres grading 534.8 g/t AgEq (189.8 g/t Ag & 3.16 g/t Au) from 215.5 metres;
• TXC25-178 drilled 6.4 metres of 296.6 g/t AgEq (135.7 g/t Ag & 1.47 g/t Au), including 0.46 metres of 3,853 g/t AgEq (1,771 g/t Ag & 19.06 g/t Au) from 183.8 metres in a north-south oriented structure within the M&I Conversion Area at DPB South; and

Blackrock Silver Corp. (TSXV: BRC,OTC:BKRRF) (OTCQX: BKRRF) (FSE: AHZ0) (‘Blackrock’ or the ‘Company’) announces the final results from its fully-funded eastern expansion drill program (the ‘Eastern Expansion Program’ or the ‘Program’) at its 100% owned Tonopah West project located in Nye and Esmeralda Counties, Nevada, United States (‘Tonopah West’).

The Eastern Expansion Program was a follow up to the Company’s successful Scout drilling program completed at Tonopah West in February 2025 (see March 31, 2025 news) which shows additional upside for the shallow southern portion of the Denver-Paymaster and Bermuda-Merten vein groups (‘DPB South‘) resource area (the ‘M&I Conversion Area‘) to expand the resource area 1,200 metres in an easterly direction (the ‘Eastern Expansion Zone‘).

The Company commenced the Eastern Expansion Program in July 2025 within the Eastern Expansion Zone, utilizing reverse circulation (RC) drilling with RC pre-collars to establish initial holes, which were then deepened using diamond core drilling (core tails) for more detailed geological analysis. The Program drilled a total of 6,798 metres (22,896 feet) in twenty-four drillholes, however, only 22 drillholes were completed, as two pre-collar holes were not usable for core tails. Of the 22 completed drillholes, three were core holes completed from surface.

Andrew Pollard, Blackrock’s President and CEO, stated, ‘Whereas we set out to target a single east-west mineralized structure, drilling from our Eastern Expansion Program has defined at least three distinct, parallel mineralized zones oriented northwest. These structures appear to be splays off the Pittsburgh-Monarch fault system. Each of these zones has intersected shallow, high-grade, and thick mineralization, indicating significant potential for further expansion in the area. Additionally, drilling in the M&I Conversion Area at DPB South has successfully connected previously isolated intercepts, confirming the presence of north-south trending structures and suggesting additional tonnage potential. Work on our upcoming mineral resource estimate and preliminary economic assessment is now underway and on track for a targeted completion date in February 2026. These will incorporate data from both our Northwest and Eastern Expansion drill programs.’

Table 1 summarizes the final results of the Eastern Expansion Program using a cut-off grade of 150 g/t AgEq.

Table 1: Eastern Expansion Drill Program Significant Results Using a 150 g/t AgEq Cut-off Grade

The Eastern Expansion Program encountered at least three northwest oriented structures which appear to be mineralized and offset the southern caldera margin to the northeast. The structures are parallel to the Pittsburg-Monarch fault and suggest a series of footwall fault splays associated with the main Pittsburg-Monarch fault. Figure 1 below shows the approximate location and orientation of the northwest fault system.

Drilling to date shows shallow, high-grade, and thick zones of mineralization in each of these structures and suggest increased expansion potential along this northwest structural corridor. Historically, the Pittsburg-Monarch fault was considered an ore control within the district with the thickest historically mined veins at Victor and Ohio abutting the main fault. The Company’s drilling in the Eastern Expansion Zone has returned thick vein intervals of gold and silver along the parallel structures confirming the importance of the Pittsburg-Monarch and its footwall fault splays.

Two drillholes, TXC25-171 and TXC25-178, were drilled in the M&I Conversion Area. These drillholes were directed to the west to understand several north-south structures encountered in the previous drilling. The Program was successful in capturing high-grade drill intervals from the north-south structures and shows there are multiple mineralized structures with similar orientation in the area.

Figure 1: Leapfrog model showing northwest oriented structures in the Eastern Expansion area

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Although below the cut-off grade of 150 g/t AgEq, drillholes TXC25-167, -168, -175, -176, -177 and TXC25-179 were mineralized with silver equivalent values ranging between 31 and 133 g/t AgEq. Table 2 shows the range of gold and silver values encountered along the northwest oriented structures.

Table 2: Mineralized Drillholes from the Eastern Expansion program that are below the 150 g/t AgEq cut-off

Figure 2: Drillhole location map for the Eastern Expansion drillholes reported in this news release

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Below are all the drillhole intervals above the 150 g/t AgEq cut off from the program showing the upside potential of the Eastern Expansion Zone.

Table 3: Eastern Expansion Program Significant Results Using a 150 g/t AgEq Cut-off Grade (TXC25-156 to TXC25-166 released on October 27, 2025)

Figure 3: Tonopah West expansion potential

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Figure 4: Tonopah West Drillhole Location Coordinates (based on GPS readings in the field, Datum UTM, NAD 1927, Zone 11)

Quality Assurance/ Quality Control

All sampling is conducted under the supervision of the Company’s project geologists, and a strict chain of custody from the project to the sample preparation facility is implemented and monitored. The RC samples are hauled from the project site to a secure and fenced facility in Tonopah, Nevada, where they are loaded on to American Assay Laboratory’s (AAL) flat-bed truck and delivered to AAL’s facility in Sparks, Nevada. A sample submittal sheet is delivered to AAL personnel who organize and process the sample intervals pursuant to the Company’s instructions.

The RC samples are lined out at the lab and logged into AAL’s system. The samples are dried, crushed to 85% passing 10 mesh (2mm) and a 250-gram sub-sample split is collected and pulverized to 200 mesh (74 micron) in a ring and puck pulverizer. Then the pulverized material is digested and analyzed for gold using fire assay fusion and an Induced Coupled Plasma (ICP) finish on a 30-gram assay split (FA-PB30-ICP). Silver is determined using five-acid digestion and ICP analysis (ICP-5AM48). Over limits for gold and silver are determined using a gravimetric finish (GRAVAU30 and GRAVAG30). Data verification of the assay and analytical results are completed to ensure accurate and verifiable results. Blackrock personnel insert a blind prep blank, lab blank or a certified reference material approximately every 15th to 20th sample.

Qualified Persons

Blackrock’s exploration activities at Tonopah West are conducted and supervised by Mr. William Howald, Executive Chairman of Blackrock. Mr. William Howald, AIPG Certified Professional Geologist #11041, is a Qualified Person as defined under National Instrument 43-101 – Standards of Disclosure for Mineral Projects. He has reviewed and approved the contents of this news release.

About Blackrock Silver Corp.

Backed by gold and silver ounces in the ground, Blackrock is a junior precious metal focused exploration and development company driven to add shareholder value. Anchored by a seasoned Board of Directors, the Company is focused on its 100% controlled Nevada portfolio of properties consisting of low-sulphidation, epithermal gold and silver mineralization located along the established Northern Nevada Rift in north-central Nevada and the Walker Lane trend in western Nevada.

Additional information on Blackrock Silver Corp. can be found on its website at www.blackrocksilver.com and by reviewing its profile on SEDAR at www.sedarplus.ca.

Cautionary Note Regarding Forward-Looking Statements and Information

This news release contains ‘forward-looking statements’ and ‘forward-looking information’ (collectively, ‘forward-looking statements‘) within the meaning of Canadian and United States securities legislation, including the United States Private Securities Litigation Reform Act of 1995. All statements, other than statements of historical fact, are forward-looking statements. Forward-looking statements in this news release relate to, among other things: the Company’s strategic plans; the anticipated objectives and results from the Company’s drill programs at Tonopah West; the timing of completion of an updated mineral resource estimate and preliminary economic assessment on Tonopah West; the Company’s de-risking initiatives at Tonopah West; estimates of mineral resource quantities and qualities; estimates of mineralization from drilling; geological information projected from sampling results; and the potential quantities and grades of the target zones.

These forward-looking statements reflect the Company’s current views with respect to future events and are necessarily based upon a number of assumptions that, while considered reasonable by the Company, are inherently subject to significant operational, business, economic and regulatory uncertainties and contingencies. These assumptions include, among other things: conditions in general economic and financial markets; accuracy of assay results; geological interpretations from drilling results, timing and amount of capital expenditures; performance of available laboratory and other related services; future operating costs; the historical basis for current estimates of potential quantities and grades of target zones; the availability of skilled labour and no labour related disruptions at any of the Company’s operations; no unplanned delays or interruptions in scheduled activities; all necessary permits, licenses and regulatory approvals for operations are received in a timely manner; the ability to secure and maintain title and ownership to properties and the surface rights necessary for operations; and the Company’s ability to comply with environmental, health and safety laws. The foregoing list of assumptions is not exhaustive.

The Company cautions the reader that forward-looking statements involve known and unknown risks, uncertainties and other factors that may cause actual results and developments to differ materially from those expressed or implied by such forward-looking statements contained in this news release and the Company has made assumptions and estimates based on or related to many of these factors. Such factors include, without limitation: the timing and content of work programs; results of exploration activities and development of mineral properties; the interpretation and uncertainties of drilling results and other geological data; receipt, maintenance and security of permits and mineral property titles; environmental and other regulatory risks; project costs overruns or unanticipated costs and expenses; availability of funds; failure to delineate potential quantities and grades of the target zones based on historical data; general market and industry conditions; and those factors identified under the caption ‘Risks Factors’ in the Company’s most recent Annual Information Form.

Forward-looking statements are based on the expectations and opinions of the Company’s management on the date the statements are made. The assumptions used in the preparation of such statements, although considered reasonable at the time of preparation, may prove to be imprecise and, as such, readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date the statements were made. The Company undertakes no obligation to update or revise any forward-looking statements included in this news release if these beliefs, estimates and opinions or other circumstances should change, except as otherwise required by applicable law.

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.

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