Diamond Drilling Commences at Tolmer Discovery

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Barton Gold (BGDFF) is drilling at its Tarcoola Gold Project’s Tolmer prospect in South Australia, targeting structural controls within the ‘eastern gold zone’. The Tolmer discovery shows promise with grades up to 83.6g/t Au and 17,600g/t Ag. A March 2025 discovery hole had the 5th highest-grade silver intersection globally in H1 2025 (6m @ 4,747 g/t Ag). Recent assays extended high-grade silver horizons and revealed high-grade gold up to ~13g/t Au, in a 1.5km wide mineralized zone.

Barton Gold Holdings (OTCQB:BGDFF) is ramping up activity at its South Australian Tarcoola Gold Project, initiating diamond drilling at the Tolmer prospect. The initial program will see 3 holes drilled, totaling approximately 550 meters, within the ‘eastern gold zone’. The focus is to analyze structural controls, informing future exploration targeting.

The Tolmer discovery is already demonstrating considerable promise, boasting grades reaching up to 83.6g/t Au and a staggering 17,600g/t Ag. A March 2025 discovery hole snagged the 5th highest-grade silver intersection globally in the first half of 2025, clocking in at 6 meters @ 4,747 g/t Ag from a depth of 46 meters. Recent assay results have not only extended the high-grade silver horizons but have also revealed concurrent high-grade gold, peaking around ~13g/t Au, all within a mineralized zone stretching roughly 1.5 kilometers wide.

Barton Gold Holdings (OTCQB:BGDFF) is ramping up activity at its South Australian Tarcoola Gold Project, initiating diamond drilling at the Tolmer prospect. The initial program will see 3 holes drilled, totaling approximately 550 meters, within the ‘eastern gold zone’. The focus is to analyze structural controls, informing future exploration targeting.

The Tolmer discovery is already demonstrating considerable promise, boasting grades reaching up to 83.6g/t Au and a staggering 17,600g/t Ag. A March 2025 discovery hole snagged the 5th highest-grade silver intersection globally in the first half of 2025, clocking in at 6 meters @ 4,747 g/t Ag from a depth of 46 meters. Recent assay results have not only extended the high-grade silver horizons but have also revealed concurrent high-grade gold, peaking around ~13g/t Au, all within a mineralized zone stretching roughly 1.5 kilometers wide.

Barton Gold Holdings (OTCQB:BGDFF) is ramping up activity at its South Australian Tarcoola Gold Project, initiating diamond drilling at the Tolmer prospect. The initial program will see 3 holes drilled, totaling approximately 550 meters, within the ‘eastern gold zone’. The focus is to analyze structural controls, informing future exploration targeting.

The Tolmer discovery is already demonstrating considerable promise, boasting grades reaching up to 83.6g/t Au and a staggering 17,600g/t Ag. A March 2025 discovery hole snagged the 5th highest-grade silver intersection globally in the first half of 2025, clocking in at 6 meters @ 4,747 g/t Ag from a depth of 46 meters. Recent assay results have not only extended the high-grade silver horizons but have also revealed concurrent high-grade gold, peaking around ~13g/t Au, all within a mineralized zone stretching roughly 1.5 kilometers wide.

Barton Gold Holdings (OTCQB:BGDFF) is ramping up activity at its South Australian Tarcoola Gold Project, initiating diamond drilling at the Tolmer prospect. The initial program will see 3 holes drilled, totaling approximately 550 meters, within the ‘eastern gold zone’. The focus is to analyze structural controls, informing future exploration targeting.

The Tolmer discovery is already demonstrating considerable promise, boasting grades reaching up to 83.6g/t Au and a staggering 17,600g/t Ag. A March 2025 discovery hole snagged the 5th highest-grade silver intersection globally in the first half of 2025, clocking in at 6 meters @ 4,747 g/t Ag from a depth of 46 meters. Recent assay results have not only extended the high-grade silver horizons but have also revealed concurrent high-grade gold, peaking around ~13g/t Au, all within a mineralized zone stretching roughly 1.5 kilometers wide.

Barton Gold Holdings (OTCQB:BGDFF) is ramping up activity at its South Australian Tarcoola Gold Project, initiating diamond drilling at the Tolmer prospect. The initial program will see 3 holes drilled, totaling approximately 550 meters, within the ‘eastern gold zone’. The focus is to analyze structural controls, informing future exploration targeting.

The Tolmer discovery is already demonstrating considerable promise, boasting grades reaching up to 83.6g/t Au and a staggering 17,600g/t Ag. A March 2025 discovery hole snagged the 5th highest-grade silver intersection globally in the first half of 2025, clocking in at 6 meters @ 4,747 g/t Ag from a depth of 46 meters. Recent assay results have not only extended the high-grade silver horizons but have also revealed concurrent high-grade gold, peaking around ~13g/t Au, all within a mineralized zone stretching roughly 1.5 kilometers wide.

Barton Gold Holdings (OTCQB:BGDFF) is ramping up activity at its South Australian Tarcoola Gold Project, initiating diamond drilling at the Tolmer prospect. The initial program will see 3 holes drilled, totaling approximately 550 meters, within the ‘eastern gold zone’. The focus is to analyze structural controls, informing future exploration targeting.

The Tolmer discovery is already demonstrating considerable promise, boasting grades reaching up to 83.6g/t Au and a staggering 17,600g/t Ag. A March 2025 discovery hole snagged the 5th highest-grade silver intersection globally in the first half of 2025, clocking in at 6 meters @ 4,747 g/t Ag from a depth of 46 meters. Recent assay results have not only extended the high-grade silver horizons but have also revealed concurrent high-grade gold, peaking around ~13g/t Au, all within a mineralized zone stretching roughly 1.5 kilometers wide.

Positive

  • Discovery hole ranked 5th highest-grade silver intersection globally in H1 2025 (6m @ 4,747 g/t Ag)
  • Exceptional grades up to 83.6g/t Au and 17,600g/t Ag
  • Large mineralized footprint of ~1.5km wide
  • Strategic location between existing Central Gawler Mill and planned Tunkillia mill

08/10/2025 – 07:59 PM

HIGHLIGHTS

  • March 2025 Tolmer discovery hole ranked 5th highest-grade silver intersection reported globally during H1 2025, with an interval of 6m @ 4,747 g/t Ag from only 46m depth1

  • New assays have extended high grade silver horizons, and added coincident high-grade gold up to ~13g/t Au, within a highly mineralised footprint now ~1.5km wide2

ADELAIDE, AUSTRALIA – Barton Gold Holdings Limited (ASX:BGD)(FRA:BGD3)(OTCQB:BGDFF) (“Barton” or “Company”) is drilling for gold and silver at its Tolmer prospect as part of the Tarcoola Gold Project in South Australia. This diamond drilling (DD) program kicks off with three holes totaling approximately 550 meters in the ‘eastern gold zone,’ aimed at uncovering the structural secrets that could unlock further high-grade targets.

Further details can be found in the ASX announcement or on Barton’s website.

Diamond Drilling Commences at Tolmer Discovery

Figure 1 – Tolmer discovery showing ‘silver zone’ at left, ‘gold zone’ at right and DD collars (red)

Alexander Scanlon, Managing Director of Barton, commented on the drilling, stating, “Tolmer is rapidly emerging as a strategic asset nestled between our Central Gawler Mill and the planned Tunkillia facility. The grades speak for themselves—up to 83.6g/t Au and 17,600g/t Ag. This diamond drilling is designed to provide a deeper understanding of the geological architecture driving this mineralization, which could translate into significant value for our regional development strategy.”

1 According to Rock Report analysis

2 Refer to ASX announcement dated 5 August 2025

Authorised by the Managing Director of Barton Gold Holdings Limited.

About Barton Gold
Barton Gold, listed on the ASX, OTCQB and Frankfurt Stock Exchange, is an Australian gold developer focused on ramping up to 150,000ozpa of future gold production. They boast a robust JORC Mineral Resource estimate of 2.1Moz Au & 3.1Moz Ag (78.9Mt @ 0.85 g/t Au), underpinned by brownfield mines and 100% ownership of the region’s only gold mill in South Australia’s Gawler Craton.

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Challenger Gold Project

Tarcoola Gold Project

  • 20koz Au in fully permitted open pit mine near CGM

  • Tolmer discovery grades up to 84g/t Au & 17,600g/t Ag

Tunkillia Gold Project

Wudinna Gold Project

  • 279koz Au project located southeast of Tunkillia

  • Significant optionality, adjacent to main highway

<td style="padding:0in 5.4pt;width:48.68%;”>Diamond Drilling Commences at Tolmer Discovery

Competent Persons Statement & Previously Reported Information
[*Note: The Competent Person table and associated disclaimer regarding previously reported information remains unchanged from the original.]

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Activity

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Competent Person

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Membership

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Status

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Tarcoola Mineral Resource (Stockpiles)

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Dr Andrew Fowler (Consultant)

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AusIMM

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Member

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Tarcoola Mineral Resource (Perseverance Mine)

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Mr Ian Taylor (Consultant)

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AusIMM

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Fellow

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Tarcoola Exploration Results (until 15 Nov 2021)

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Mr Colin Skidmore (Consultant)

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AIG

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Member

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Tarcoola Exploration Results (after 15 Nov 2021)

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Mr Marc Twining (Employee)

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AusIMM

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Member

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Tunkillia Exploration Results (until 15 Nov 2021)

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Mr Colin Skidmore (Consultant)

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AIG

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Member

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Tunkillia Exploration Results (after 15 Nov 2021)

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Mr Marc Twining (Employee)

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AusIMM

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Member

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Tunkillia Mineral Resource

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Mr Ian Taylor (Consultant)

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AusIMM

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Fellow

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Challenger Mineral Resource

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Mr Ian Taylor (Consultant)

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AusIMM

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Fellow

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Wudinna Mineral Resource (Clarke Deposit)

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Ms Justine Tracey

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AusIMM

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Member

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Wudinna Mineral Resource (all other Deposits)

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Mrs Christine Standing

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AusIMM / AIG

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Member / Member

The information relating to historic Exploration Results and Mineral Resources in this announcement is extracted from the Company’s Prospectus dated 14 May 2021 or as otherwise noted in this announcement, available from the Company’s website or on the ASX website . The Company confirms that it is not aware of any new information or data that materially affects the Exploration Results and Mineral Resource information included in previous announcements and, in the case of estimates of Mineral Resources, that all material assumptions and technical parameters underpinning the estimates, and any production targets and forecast financial information derived from the production targets, continue to apply and have not materially changed. The Company confirms that the form and context in which the applicable Competent Persons’ findings are presented have not been materially modified from the previous announcements.

Cautionary Statement Regarding Forward-Looking Information

[*Note: The Forward-Looking Information statement remains unchanged from the original.]

This document may contain forward-looking statements. Forward-looking statements are often, but not always, identified by the use of words such as “seek”, “anticipate”, “believe”, “plan”, “expect”, “target” and “intend” and statements than an event or result “may”, “will”, “should”, “would”, “could”, or “might” occur or be achieved and other similar expressions. Forward-looking information is subject to business, legal and economic risks and uncertainties and other factors that could cause actual results to differ materially from those contained in forward-looking statements. Such factors include, among other things, risks relating to property interests, the global economic climate, commodity prices, sovereign and legal risks, and environmental risks. Forward-looking statements are based upon estimates and opinions at the date the statements are made. Barton undertakes no obligation to update these forward-looking statements for events or circumstances that occur subsequent to such dates or to update or keep current any of the information contained herein. Any estimates or projections as to events that may occur in the future (including projections of revenue, expense, net income and performance) are based upon the best judgment of Barton from information available as of the date of this document. There is no guarantee that any of these estimates or projections will be achieved. Actual results will vary from the projections and such variations may be material. Nothing contained herein is, or shall be relied upon as, a promise or representation as to the past or future. Any reliance placed by the reader on this document, or on any forward-looking statement contained in or referred to in this document will be solely at the readers own risk, and readers are cautioned not to place undue reliance on forward-looking statements due to the inherent uncertainty thereof.

* Refer to Barton Prospectus dated 14 May 2021 and ASX announcement dated 25 July 2025. Total Barton JORC (2012) Mineral Resources include 1,049koz Au (39.7Mt @ 0.82 g/t Au) in Indicated category and 1,095koz Au (39.2Mt @ 0.87 g/t Au) in Inferred category, and 3,070koz Ag (34.5Mt @ 2.80 g/t Ag) in Inferred category as a subset of Tunkillia gold JORC (2012) Mineral Resources.

SOURCE: Barton Gold Holdings Limited

FAQ

What are the latest drilling results from Barton Gold’s (BGDFF) Tolmer prospect?

Barton Gold has just initiated a diamond drilling program of 3 holes totaling ~550 metres in the eastern gold zone. Previous results include grades up to 83.6g/t Au and 17,600g/t Ag.

How significant was Barton Gold’s (BGDFF) March 2025 Tolmer discovery?

The March 2025 Tolmer discovery ranked as the 5th highest-grade silver intersection globally in H1 2025, with an interval of 6m @ 4,747 g/t Ag from 46m depth.

What is the size of the mineralized area at Barton Gold’s Tolmer prospect?

The Tolmer prospect has a highly mineralized footprint approximately 1.5km wide, containing both high-grade gold and silver zones.

How does the Tolmer discovery fit into Barton Gold’s (BGDFF) development strategy?

The Tolmer discovery is strategically located between Barton’s existing Central Gawler Mill and planned Tunkillia mill, with potential to add significant value to their regional development strategy.

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Jam

Jam

Jan, a seasoned journalist, specializes in major corporations' stock industry and the IT tech internet field. With years of experience, she's known for dissecting global tech giants' stock moves, analyzing financial impacts and industry trends. Jan excels at simplifying complex data and tech concepts, and her work appears in renowned financial and tech publications.
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