A2GOLD INTERSECTS 141.10 G/T GOLD OVER 0.9 METRES AT SHALLOW DEPTH AT CASTLE AND DEFINES HIGH-GRADE STRUCTURAL TARGETS

A2 Gold Corp. (AUAU) has released assay results from its 100%-owned Eastside Gold-Silver Project in Esmeralda County, Nevada. The company highlighted Hole CAC-007, which returned 141.10 g/t Au over 0.9 m from 75.9 m downhole, representing a vertical depth of approximately 53 m. This result is described as the highest-grade gold assay reported to date at Eastside and occurs within a broader zone of lower-grade gold mineralization, including 0.16 g/t gold over 16.9 metres.

Hole CAC-006 returned 9.72 g/t Au over 0.6 m from 71.0 m downhole, within a broader interval of 0.77 g/t Au over 23.7 m. Additionally, the hole intersected 5.66 g/t Au over 0.2 m from 110.2 m downhole, within a broader interval of 0.68 g/t Au over 16.5 m. Silver, which was not previously systematically assayed, was reported at 13.3 g/t Ag over 19.5 m in CAC-006 and 10.3 g/t Ag over 41.6 m in CAC-003.

Geologically, the company identified three potential controls on higher-grade gold: a northeast-striking, moderately northwest-dipping fault juxtaposing Tertiary volcanics against Paleozoic basement, which was tested by CAC-007; a northwest-striking, steeply dipping corridor through the central Castle resource; and favourable stratigraphic and lithological contacts. Higher grades are interpreted to occur where these features intersect.

CAC-007 is claimed to lie on the same broader northeast trend as Black Rock surface channel samples, which returned 10.50 g/t Au over 0.26 m and 5.63 g/t Au over 0.28 m, released on June 3, 2026. A corridor of approximately 400 m between these targets is described as incompletely tested and a priority for follow-up.

The Castle deposit hosts an NI 43-101 Inferred resource of 19.986 Mt @ 0.49 g/t Au, equating to approximately 314,000 oz Au at a 0.15 g/t Au cutoff, effective July 30, 2021. The company explicitly states that the new results are not incorporated into this estimate.

Disclosures regarding the data include cutoffs of 0.15 g/t, 1 g/t, and 5 g/t Au, with a maximum consecutive internal dilution of 3.0-4.0 m for each and no limit on non-consecutive dilution. Silver was assessed at a nominal 5 g/t cutoff. Composites were calculated on uncapped raw assay values, and reported intervals represent downhole lengths with true widths not determined. Core recovery was variable, and a length-weighted average grade was applied over total intervals where recovery was incomplete. Samples were sent to American Assay Laboratories in Sparks, NV, which is ISO/IEC 17025 certified. The protocol included a 30 g fire assay with ICP-OES finish and gravimetric overlimit re-assay, alongside 5-acid/ICP-OES for silver. Certified reference materials, blanks, and duplicates were inserted, and the Qualified Person is John Marma, CPG.

A2 Gold Corp. (AUAU) is a pre-feasibility junior explorer and resource-definition company that currently holds only inferred resources, with no reserves, preliminary economic assessment, revenue, or operating mine. In the prior period, the company reported a net loss of C$2.49 million for the fiscal year ending September 30, 2025, and a net loss of C$2.39 million on zero revenue for the half-year ending March 31, 2026. As of March 31, 2026, the company held C$13.48 million in cash and C$13.28 million in working capital, figures boosted by approximately C$6.05 million in proceeds from warrant exercises.

The latest results do not change the existing resource estimate. The company states that the new results are not incorporated into the 2021 estimate and provides no tonnage or grade implication. The Castle deposit remains defined at 19.986 million tonnes at 0.49 grams per tonne of gold for 314,000 ounces. However, the findings add a defined, drillable structural corridor, a second higher-grade structural orientation to test, and recognition that silver was never systematically assayed at Castle. These factors serve as exploration-planning positives, though they do not constitute a valuation event.

The best previously demonstrated high-grade on the property is McIntosh ES-243, which returned 148 meters at 2.6 grams per tonne of gold, including 14 meters at 21.9 grams per tonne of gold (approximately 307 gram-meters on the sub-interval), and ES-239, which returned 3 meters at 39 grams per tonne of gold (approximately 117 gram-meters), both from 2021. The most recent comparable fresh result is ES-331, reported on January 13, 2026, which returned 2.9 grams per tonne of gold over 20 meters (58 gram-meters), including 4.9 grams per tonne of gold over 10.7 meters, extending mineralization to 480 meters vertically. At Castle specifically, the anchor is the 0.49 grams per tonne resource grade plus surface samples from Black Rock on June 3, 2026, which returned 10.50 grams per tonne of gold over 0.26 meters true width.

The stock price moved from approximately C$0.63 to C$0.79 in September 2025 to C$1.40 on February 6, 2026, a move of approximately 2.2 times driven by the drill-program expansion to 30,000 meters and the January 13 core results. It has since round-tripped to C$0.63, within approximately 5% of its 52-week low of C$0.60 and essentially back to where it started. The market no longer assumes repetition of high-grade results, meaning the high-grade-feeder narrative has been marked down as unproven.

The latest intercept returned 141.10 grams per tonne of gold over 0.9 meters (127.0 gram-meters). This compares to the property's prior best of ES-243’s 14 meters at 21.9 grams per tonne of gold (307 gram-meters) and ES-239’s 3 meters at 39 grams per tonne of gold (117 gram-meters). The new result is higher grade but one-third to one-fifteenth the width. On grade-and-width substance, it is not materially better than what Eastside has already demonstrated. It does not grow the system, does not extend a known zone materially, and does not change scale.

At approximately C$78 million market capitalization for approximately 1.4 million ounces of gold and approximately 8.8 million ounces of silver in pit-constrained inferred resources, plus C$13.5 million in cash, the equity is not cheap on resource alone, roughly equating to US$30-40 per ounce of gold on an inferred basis. This valuation embeds a large option on a high-grade discovery that has not yet materialized. This release keeps that option alive but does not pay it off.

The release crossed on September 21, 2026, and the stock closed at C$0.63 versus C$0.64 the prior session, flat to slightly down. The prior week's weaker South McIntosh result of 0.23 grams per tonne of gold over 65.5 meters, reported on September 17, had already taken the stock from C$0.70 to C$0.64. The market read the headline, saw the 0.9-meter interval, and did not bid.

A2 Gold Corp. (TSXV: AUAU; OTCQX: AUXXF; FRA: RR7) is a Nevada-focused precious-metals explorer dually listed on the TSX Venture Exchange, OTCQX and Börse Frankfurt. The company’s flagship Eastside Project, located in Esmeralda County on the Walker Lane trend approximately 20 miles northwest of Tonopah, covers roughly 92 km² and is 100%-owned. It holds an inferred resource of approximately 1.4 moz Au and 8.8 moz Ag. The McIntintosh Zone contains 61.73 Mt at 0.55 g/t Au and 4.4 g/t Ag, equating to 1.09 moz Au and 8.7 moz Ag, while the Castle Zone holds 19.986 Mt at 0.49 g/t Au for 314 koz Au. These figures are based on a 0.15 g/t Au cutoff, a gold price of US$1,725/oz, and are effective as of July 30, 2021. Preliminary metallurgy indicates that both oxide and sulphide gold are amenable to heap leaching, though less than 20% of the district has been tested per the company.

The Taylor Project, situated in White Pine County, encompasses approximately 117 km². The company acquired the property in 2026 for 8,662,881 shares, US$1M in deferred cash, and a 2% NSR, with royalty buyback options available. Historical data from a 2018 SRK report, which is a non-current NI 43-101 document providing prior-period context rather than part of today's release, indicates approximately 11.0 moz Ag in measured and indicated categories plus approximately 0.6 moz Ag inferred at a 1.6 oz/t cutoff and US$17/oz Ag. Company sensitivity analysis at US$30/oz and a 0.9 oz/t cutoff suggests the potential for over 20 moz Ag. The project also includes additional gold, antimony, CRD, skarn, and porphyry concepts.

The combined land package across the two districts totals approximately 230 km². The shareholder base includes Kinross Gold Corporation with approximately 9.9% ownership, along with additional backing from Ingalls & Snyder, CALU Group, and Eric Sprott, according to the provided investor presentation. The management and technical team includes CEO Peter Gianulis, Chairman Norm Pitcher (ex-Eldorado Gold), CFO Sean McGrath, VP Exploration John Marma (ex-Hecla/Newmont/Klondex), Head Geologist Andy Wallace (Cordex, credited on Marigold and Lone Tree), and Chief Geologist Gabe Kassos.

Per the investor presentation, the capital structure consists of 123,901,961 common shares, 5,566,533 warrants, 4,243,750 options, and 2,874,165 RSUs, totaling 134,586,409 fully diluted shares. The latest as-reported financials for the period ending 2026-03-31 show 104,234,379 shares outstanding, total equity of C$52.08M, and a book value per share of C$0.50. Prior-period financial context, not disclosed in today's release, indicates no revenue in any period. Net losses included C$2,485,628 for FY-2025, C$731,841 for Q1-2026, C$1,661,437 for Q2-2026 (three months to 2026-03-31), and C$2,393,278 for H1-2026. As of 2026-03-31, the company held C$13,484,517 in cash, C$964,681 in total liabilities, no debt, and working capital of C$13,280,967. Operating cash outflow was C$2,254,819 in H1-2026, with capex of C$2,374,859, which was exploration capitalised into PP&E of C$38,174,801.

Marketing arrangements from prior periods, not part of today's release, include Machai Capital Inc. retained at C$200,000 plus GST through October 26, 2026 with 250,000 options at C$0.89. The Investing Authority was retained at US$150,000 over four months from October 1, 2025.