A2GOLD DETAILS ANTIMONY POTENTIAL INCLUDING PAST HIGH-GRADE PRODUCTION AND MINERALIZATION STYLES AT TAYLOR

Rhea-AI Summary

A2Gold (OTCQX: AUXXF) reports expanded technical detail on antimony potential at the Taylor Project in White Pine County, Nevada, highlighting two mineralization styles, historical high-grade production and regional context.

Key metrics: Enterprise historical shipments include 13 t at 56% Sb (1939) and samples up to 76% Sb; Merrimac reported ~90 t ore at ~14% Sb and ~2.5 t antimony oxide recovered. Company plans drill targeting and follow-up exploration.

AI-generated analysis. Not financial advice.

Positive

• 13 tons of historical ore at 56% Sb (Enterprise, 1939)
• Historical sample grades up to 76% Sb
• Merrimac produced ~2.5 tons of antimony oxide from ~90 tons ore (~14% Sb)
• Multiple antimony styles indicating district-scale mineralizing system
• Geophysical targets (airborne magnetic, ground IP) support intrusive-source interpretation

Negative

• Historical production figures are not NI 43-101 compliant and lack independent verification
• Past production was limited in scale and duration (short campaigns in 1939–1941 and 1959–1960)
• No current NI 43-101 resource or reserve reported for antimony at Taylor

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TONOPAH, Nev., April 15, 2026 /PRNewswire/ - A2Gold Corp. ("A2Gold" or the "Company") (TSXV: AUAU) (OTCQX: AUXXF) (FRA: RR7) is pleased to provide additional technical detail on the antimony potential at its Taylor Gold-Silver Project ("Taylor" or the "Project") in White Pine County, Nevada, including historical production data, mineralization styles, and regional context.

This release builds on the Company's March 17, 2026, news release and highlights the emerging significance of antimony mineralization at Taylor within the broader context of a district-scale mineralizing system.

Multiple Styles of Antimony Mineralization Support District-Scale Potential

Previous geological work at Taylor has identified two distinct styles of antimony mineralization:

• Tetrahedrite-rich mineralization associated with carbonate replacement deposit (CRD) systems proximal to the Taylor resource; and
• Stibnite–stibiconite mineralization occurring distally, commonly stratiform and spatially associated with gold mineralization. (See Figure 1)

The coexistence of these mineralization styles across the property suggests a large, evolving hydrothermal system with potential for multiple mineralizing events and metal zonation.

Importantly, tetrahedrite-bearing CRD mineralization is consistent with, but does not confirm, a potential genetic link to an underlying intrusion-related (porphyry) system. Recent airborne magnetic and ground IP surveys conducted by White Pine Metals have identified multiple geophysical targets consistent with this interpretation.

High-Grade Historical Production Demonstrates Strong Antimony Endowment

Two past-producing antimony mines occur within the Taylor property and demonstrate the presence of exceptionally high-grade antimony mineralization:

Enterprise Mine (1939–1941)

• 13 tons at 56% Sb (1939)
• 6 tons at 39% Sb (1940)
• 1 ton at 76% Sb (1941)

Mineralization occurs in narrow veins and replacement zones within silicified limestone, with stibnite developed as blades, needles, and pods, commonly oxidized near surface.

Merrimac Mine (1959–1960)

• ~90 tons of ore averaging ~14% Sb
• ~2.5 tons of antimony oxide produced

Mineralization occurs as stibnite (commonly oxidized) in blebs, pods, veinlets, and rosettes of bladed crystals distributed along favorable stratigraphic horizons with localized high-grade shoots. These grades, including samples up to 76% Sb, rank among the highest reported antimony grades in Nevada and confirm the presence of a robust antimony-bearing system within the property.

Historical production data are derived from Nevada Bureau of Mines publications and other historical sources and have not been independently verified. While not compliant with NI 43-101 standards, these data demonstrate the presence of high-grade antimony mineralization on the property.

Regional Context Highlights Emerging Antimony Belt in Eastern Nevada
Taylor is located within a broadly mineralized region hosting multiple styles of antimony mineralization, including:

• Porphyry systems (e.g., Robinson District near Ely), where antimony occurs as a consistent accessory metal in large copper-gold systems; and
• Carlin-type systems (e.g., Bald Mountain), where antimony is associated with gold mineralization in similar Paleozoic host rocks.

Recent exploration results from NevGold Corp. at its Limousine Butte Project (~85 km northwest of Taylor) have reported near-surface, oxide-hosted antimony mineralization associated with sediment-hosted gold systems in comparable geological settings.

While results from other properties are not necessarily indicative of mineralization at Taylor, they highlight increasing industry recognition of gold-antimony associations across Nevada and support the interpretation that White Pine County and the surrounding region represent an emerging and underexplored antimony-bearing belt.

Exploration Implications and Next Steps
The presence of multiple antimony mineralization styles, high-grade historical production, widespread regional occurrences, and geophysical evidence of potential intrusive centers supports the interpretation that Taylor represents a district-scale mineralized system. This system may include:

• Carbonate replacement (CRD) mineralization
• Distal gold-antimony mineralization
• A potential underlying intrusion-related source

The Company is currently advancing drill targeting to test these concepts, with upcoming exploration programs designed to evaluate the relationship between antimony mineralization, gold systems, and potential intrusive drivers.

Peter Gianulis, CEO of A2Gold, commented: "The Taylor Project continues to evolve as a compelling multi-metal system with clear district-scale potential. The presence of multiple styles of antimony mineralization, combined with exceptionally high-grade historical production, reinforces our view that Taylor hosts a large and dynamic mineralizing system. At a time when antimony is emerging as a critical mineral with constrained global supply, we believe Taylor represents a unique opportunity to advance a U.S.-based gold and critical minerals project. Our upcoming exploration programs are designed to systematically test these targets and unlock additional value for shareholders."

Strategic Importance of Antimony
Antimony is classified as a critical mineral by the United States government due to its importance in defense, energy storage, and industrial applications, combined with limited domestic production and significant reliance on foreign supply. The identification of multiple styles of antimony mineralization at Taylor positions the Project as a potential U.S.-based source of both precious metals and critical minerals.

QUALIFIED PERSON
John Marma is a Certified Professional Geologist (CPG) with the American Institute of Professional Geologists and is the Qualified Person under NI 43-101, Standards of Disclosure for Mineral Projects, who has reviewed and approved the scientific and technical content of this press release. 

ABOUT A2GOLD CORP
A2Gold Corp. owns three highly prospective gold projects in the United States all of which are in the mining-friendly jurisdiction of Nevada. A2Gold's flagship, district-scale Eastside Gold-Silver Project hosts a large and expanding gold and silver resource and is in an area of excellent infrastructure. Preliminary metallurgical testing indicates that both oxide and sulphide gold mineralization at Eastside is amenable to heap leaching.

ON BEHALF OF THE BOARD
Peter Gianulis, CEO

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Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

Certain statements and information contained in this press release constitute "forward-looking statements" within the meaning of applicable U.S. securities laws and "forward-looking information" within the meaning of applicable Canadian securities laws, which are referred to collectively as "forward-looking statements". The United States Private Securities Litigation Reform Act of 1995 provides a "safe harbor" for certain forward-looking statements. A2Gold Corp.'s ("A2Gold") exploration plans for its gold exploration properties, the drill program at A2Gold's Eastside project, the preparation and publication of an updated resource estimate in respect of the Original Zone at the Eastside project, A2Gold's future exploration and development plans, including anticipated costs and timing thereof; A2Gold's plans for growth through exploration activities, acquisitions or otherwise; and expectations regarding future maintenance and capital expenditures, and working capital requirements. Forward-looking statements are statements and information regarding possible events, conditions or results of operations that are based upon assumptions about future economic conditions and courses of action. All statements and information other than statements of historical fact may be forward-looking statements. In some cases, forward-looking statements can be identified by the use of words such as "seek", "expect", "anticipate", "budget", "plan", "estimate", "continue", "forecast", "intend", "believe", "predict", "potential", "target", "may", "could", "would", "might", "will" and similar words or phrases (including negative variations) suggesting future outcomes or statements regarding an outlook. Such forward-looking statements are based on a number of material factors and assumptions and involve known and unknown risks, uncertainties and other factors which may cause actual results, performance or achievements, or industry results, to differ materially from those anticipated in such forward-looking information. You are cautioned not to place undue reliance on forward-looking statements contained in this press release. Some of the known risks and other factors which could cause actual results to differ materially from those expressed in the forward-looking statements are described in the sections entitled "Risk Factors" in A2Gold's Listing Application, dated January 24, 2018, as filed with the TSX Venture Exchange and available on SEDAR under A2Gold's profile at www.sedar.com. Actual results and future events could differ materially from those anticipated in such statements. A2Gold undertakes no obligation to update or revise any forward-looking statements included in this press release if these beliefs, estimates and opinions or other circumstances should change, except as otherwise required by applicable law.

The securities referred to in this news release have not been, nor will they be, registered under the United States Securities Act of 1933, as amended, and may not be offered or sold within the United States or to, or for the account or benefit of, U.S. persons absent U.S. registration or an applicable exemption from the U.S. registration requirements.

This news release does not constitute an offer for sale of securities for sale, nor a solicitation for offers to buy any securities. Any public offering of securities in the United States must be made by means of a prospectus containing detailed information about the company and management, as well as financial statements.

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SOURCE A2 Gold Corp

FAQ

What antimony grades were reported historically at Taylor (AUXXF)?

Historic results include very high grades, with 13 t at 56% Sb (1939) and samples up to 76% Sb. According to the company, these figures come from historical Nevada Bureau of Mines sources and are not NI 43-101 verified.

How much antimony did Merrimac produce on the Taylor property (AUXXF)?

Merrimac historically processed ~90 tons of ore averaging ~14% Sb, yielding ~2.5 tons of antimony oxide. According to the company, these are historical production numbers and lack modern independent verification.

What styles of antimony mineralization has A2Gold identified at Taylor (AUXXF)?

A2Gold describes two styles: tetrahedrite-rich CRD proximal to the resource and stibnite–stibiconite stratiform distal styles. According to the company, both styles suggest a large, evolving hydrothermal system.

Does A2Gold plan drilling to test antimony at Taylor (AUXXF)?

Yes. The company is advancing drill targeting and upcoming exploration programs to test links between antimony, gold, and potential intrusive drivers. According to the company, programs are designed to evaluate these concepts systematically.

Are the historical antimony figures NI 43-101 compliant for AUXXF?

No. The company notes historical production and sample data are not NI 43-101 compliant and have not been independently verified. According to the company, these data demonstrate presence but require modern validation.