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Tunkillia Optimised Scoping Study - Progress Update

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Barton Gold Holdings (BGDFF) has provided an update on its Tunkillia Gold Project's Optimised Scoping Study (OSS). The July 2024 Initial Scoping Study demonstrated a 5Mtpa operation producing approximately 130,000oz gold annually at an All-in-Sustaining-Cost of A$1,917/oz Au.

The OSS, which commenced in November 2024, aims to reduce power consumption, improve economics, and decrease project working capital requirements. Recent comminution testwork and scenario analyses have shown significant efficiency gains, including reduced work indices and power consumption for all material types, with increased throughput rates for oxide materials during early operations.

The company is currently conducting additional studies including updated JORC Mineral Resources Estimate block modelling, capex and opex optimization, preliminary power options analyses, and open pit mine design. The OSS is scheduled for completion before June 30, 2025.

Barton Gold Holdings (BGDFF) ha fornito un aggiornamento sullo Studio di Fattibilità Ottimizzato (OSS) del suo Progetto Oro Tunkillia. Lo Studio di Fattibilità Iniziale di luglio 2024 ha dimostrato un'operazione di 5Mtpa che produce circa 130.000 once d'oro all'anno a un costo totale sostenibile di A$1.917/oz Au.

L'OSS, iniziato a novembre 2024, mira a ridurre il consumo energetico, migliorare l'economia e diminuire i requisiti di capitale circolante del progetto. I recenti test di frantumazione e le analisi di scenario hanno mostrato significativi guadagni in termini di efficienza, inclusi indici di lavoro ridotti e consumo energetico per tutti i tipi di materiale, con tassi di produzione aumentati per i materiali ossidati durante le prime operazioni.

L'azienda sta attualmente conducendo studi aggiuntivi, inclusi modelli aggiornati delle Risorse Minerarie JORC, ottimizzazione del capex e opex, analisi preliminari delle opzioni energetiche e progettazione della miniera a cielo aperto. L'OSS è previsto per il completamento prima del 30 giugno 2025.

Barton Gold Holdings (BGDFF) ha proporcionado una actualización sobre su Estudio de Alcance Optimizado (OSS) del Proyecto de Oro Tunkillia. El Estudio de Alcance Inicial de julio de 2024 demostró una operación de 5Mtpa que produce aproximadamente 130,000 onzas de oro anualmente a un costo total sostenible de A$1,917/oz Au.

El OSS, que comenzó en noviembre de 2024, tiene como objetivo reducir el consumo de energía, mejorar la economía y disminuir los requisitos de capital de trabajo del proyecto. Los recientes trabajos de trituración y análisis de escenarios han mostrado ganancias significativas en eficiencia, incluidos índices de trabajo reducidos y consumo de energía para todos los tipos de material, con tasas de producción aumentadas para materiales oxidados durante las primeras operaciones.

La empresa está llevando a cabo estudios adicionales, incluidos modelos de estimación de recursos minerales JORC actualizados, optimización de capex y opex, análisis preliminares de opciones energéticas y diseño de mina a cielo abierto. Se prevé que el OSS se complete antes del 30 de junio de 2025.

바튼 골드 홀딩스 (BGDFF)는 턴킬리아 금 프로젝트의 최적화 범위 연구(OSS)에 대한 업데이트를 제공했습니다. 2024년 7월의 초기 범위 연구는 연간 약 130,000온스의 금을 생산하는 5Mtpa 운영을 보여주었으며, 총 지속 비용은 A$1,917/온스 Au입니다.

2024년 11월에 시작된 OSS는 전력 소비를 줄이고 경제성을 개선하며 프로젝트 운영 자본 요구 사항을 감소시키는 것을 목표로 하고 있습니다. 최근의 분쇄 테스트와 시나리오 분석은 모든 재료 유형에 대해 작업 지수와 전력 소비를 줄이는 등 상당한 효율성 향상을 보여주었으며, 초기 운영 중 산화물 재료에 대한 처리 속도가 증가했습니다.

회사는 현재 업데이트된 JORC 광물 자원 추정 블록 모델링, 자본 지출 및 운영 지출 최적화, 초기 전력 옵션 분석 및 노천 광산 설계를 포함한 추가 연구를 수행하고 있습니다. OSS는 2025년 6월 30일 이전에 완료될 예정입니다.

Barton Gold Holdings (BGDFF) a fourni une mise à jour sur son Étude de Faisabilité Optimisée (OSS) du Projet Aurifère Tunkillia. L'Étude de Faisabilité Initiale de juillet 2024 a démontré une opération de 5Mtpa produisant environ 130 000 onces d'or par an à un coût total durable de A$1 917/oz Au.

L'OSS, qui a commencé en novembre 2024, vise à réduire la consommation d'énergie, améliorer l'économie et diminuer les besoins en fonds de roulement du projet. Les récents tests de broyage et les analyses de scénarios ont montré des gains d'efficacité significatifs, y compris des indices de travail réduits et une consommation d'énergie diminuée pour tous les types de matériaux, avec des taux de production accrus pour les matériaux oxydés durant les premières opérations.

L'entreprise mène actuellement des études supplémentaires, y compris la modélisation mise à jour des Ressources Minérales JORC, l'optimisation des capex et opex, des analyses préliminaires des options énergétiques et la conception de mines à ciel ouvert. L'OSS devrait être achevée avant le 30 juin 2025.

Barton Gold Holdings (BGDFF) hat ein Update zu seiner Optimierten Machbarkeitsstudie (OSS) für das Tunkillia Goldprojekt bereitgestellt. Die erste Machbarkeitsstudie im Juli 2024 zeigte einen Betrieb mit 5Mtpa, der jährlich etwa 130.000 Unzen Gold zu einem All-in-Sustaining-Cost von A$1.917/Unze Au produziert.

Die OSS, die im November 2024 begann, zielt darauf ab, den Energieverbrauch zu senken, die Wirtschaftlichkeit zu verbessern und die Anforderungen an das Betriebskapital des Projekts zu reduzieren. Jüngste Zerkleinerungstests und Szenarioanalysen haben signifikante Effizienzgewinne gezeigt, darunter reduzierte Arbeitsindizes und Energieverbrauch für alle Materialarten, mit erhöhten Durchsatzraten für oxidische Materialien während der frühen Betriebsphasen.

Das Unternehmen führt derzeit zusätzliche Studien durch, einschließlich aktualisierter JORC-Mineralressourcenschätzungen, Optimierung von Capex und Opex, vorläufigen Analysen von Energieoptionen und dem Design von Tagebauen. Die OSS soll vor dem 30. Juni 2025 abgeschlossen sein.

Positive
  • Initial Scoping Study validated 5Mtpa operation producing ~130,000oz gold annually
  • Comminution tests show reduced power consumption and improved throughput rates
  • Significant processing efficiency gains indicated in preliminary analyses
Negative
  • High All-in-Sustaining-Cost at A$1,917/oz Au
  • OSS completion not expected until June 2025, indicating extended timeline

Comminution analyses indicate significant processing efficiency gains

HIGHLIGHTS

  • July 2024 Initial Scoping Study (ISS) validated efficiencies of scale, with a 5Mtpa producing ~130,000oz gold per annum at a competitive All-in-Sustaining-Cost (AISC) of A$1,917/oz Au[1]

  • Optimised Scoping Study (OSS) commenced November 2024, with key objectives to reduce power consumption, improve economics, and de-risk project working capital requirements[2]

  • Other OSS work programs underway include updated JORC Mineral Resources Estimate (MRE) block modelling, comminution testwork and scenario analyses, capex and opex optimisation, preliminary power options analyses, and open pit mine design and scheduling opportunities

  • Comminution testwork and scenario analyses now complete, with meaningful efficiency gains indicated; other programs remain underway, with OSS to be completed before 30 June 2025

[1] Refer to ASX announcement dated 16 July 2024

[2] Refer to ASX announcements dated 19 November and 12 December 2024

ADELAIDE, AU / ACCESS Newswire / February 23, 2025 / Barton Gold Holdings Limited (ASX:BGD)(FRA:BGD3)(OTCQB:BGDFF) (Barton or Company) is pleased to provide a progress update for ongoing studies at its South Australian Tunkillia Gold Project (Tunkillia).

Following the ISS publication during July 2024, Barton engaged independent technical consultants to complete a detailed review of optimisation opportunities in parallel with Barton's own internal analyses.1 These parallel analyses identified high-priority opportunities relating to (amongst others) comminution circuit design, variable grind sizing, power consumption, mill throughput planning and mine scheduling.

Barton has now completed additional drilling, comminution testwork and scenario analyses comparing fresh and oxide materials' performance and recoveries at different grind sizes in different comminution circuits. Preliminary analyses indicate significantly reduced work indices and power consumption for all material types, with increased effective throughput rates of softer oxide materials during early operations.

These findings are now under review for validation by a second, independent technical consultancy, with capex, power options, and mine scheduling underway for completion of the OSS before 30 June 2025.

Commenting on the ongoing Tunkillia OSS, Barton MD Alexander Scanlon said:

"Tunkillia's Initial Scoping Study validated Barton's thesis for an efficient, large-scale operation at Tunkillia. The key objectives of the Optimised Scoping Study are not only to further improve economics, but also to de-risk the project by reducing total power consumption, working capital requirements and exposure to energy price risk.

"We anticipate that the Tunkillia OSS will demonstrate meaningful cost and efficiency gains, with our preliminary scenarios analyses and power studies better informing a budget and plan for expedited feasibility studies."

Authorised by the Managing Director of Barton Gold Holdings Limited.

For further information, please contact:

Alexander Scanlon
Managing Director
a.scanlon@bartongold.com.au
+61 425 226 649

Jade Cook
Company Secretary
cosec@bartongold.com.au
+61 8 9322 1587

About Barton Gold

Barton Gold is an ASX, OTCQB and Frankfurt Stock Exchange listed Australian gold developer targeting future gold production of 150,000oz annually, with ~1.6Moz Au JORC Mineral Resources (52.3Mt @ 0.94 g/t Au), multiple advanced exploration projects and brownfield mines, and 100% ownership of the only regional gold mill in the renowned central Gawler Craton of South Australia.*

Tarcoola Gold Project

  • Existing brownfield open pit mine within trucking distance of Barton's processing plant

  • Under-explored asset with untapped scale potential

Tunkillia Gold Project *

  • 1.5Moz Au Mineral Resources (51.3Mt @ 0.91 g/t Au)

  • Scoping Study for competitive ~130kozpa Au mine

Infrastructure

  • 650ktpa CIP process plant, mine village, and airstrip

  • Tarcoola ~40 person lodging to support mine operations

  • Tunkillia camp to support dedicated project team

Competent Persons Statement & Previously Reported Information

The information in this announcement that relates to the historic Exploration Results and Mineral Resources as listed in the table below is based on, and fairly represents, information and supporting documentation prepared by the Competent Person whose name appears in the same row, who is an employee of or independent consultant to the Company and is a Member or Fellow of the Australasian Institute of Mining and Metallurgy (AusIMM), Australian Institute of Geoscientists (AIG) or a Recognised Professional Organisation (RPO). Each person named in the table below has sufficient experience which is relevant to the style of mineralisation and types of deposits under consideration and to the activity which he has undertaken to quality as a Competent Person as defined in the JORC Code 2012 (JORC).

Activity
Competent Person
Membership
Status
Tarcoola Mineral Resource (Stockpiles)
Dr Andrew Fowler (Consultant)
AusIMM
Member
Tarcoola Mineral Resource (Perseverance Mine)
Mr Ian Taylor (Consultant)
AusIMM
Fellow
Tarcoola Exploration Results (until 15 Nov 2021)
Mr Colin Skidmore (Consultant)
AIG
Member
Tarcoola Exploration Results (after 15 Nov 2021)
Mr Marc Twining (Employee)
AusIMM
Member
Tunkillia Exploration Results (until 15 Nov 2021)
Mr Colin Skidmore (Consultant)
AIG
Member
Tunkillia Exploration Results (after 15 Nov 2021)
Mr Marc Twining (Employee)
AusIMM
Member
Tunkillia Mineral Resource
Mr Ian Taylor (Consultant)
AusIMM
Fellow
Challenger Mineral Resource
Mr Dale Sims (Consultant)
AusIMM / AIG
Fellow / 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 at www.bartongold.com.au or on the ASX website www.asx.com.au. 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

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 announcements dated 4 March and 16 July 2024. Total Barton JORC (2012) Mineral Resources include 833koz Au (26.9Mt @ 0.96 g/t Au) in Indicated and 754koz Au (25.4Mt @ 0.92 g/t Au) in Inferred categories.

SOURCE: Barton Gold Holdings Limited



View the original press release on ACCESS Newswire

FAQ

What is the expected annual gold production for BGDFF's Tunkillia Project?

According to the Initial Scoping Study, the Tunkillia Project is expected to produce approximately 130,000oz gold per annum at a 5Mtpa operation.

What is the All-in-Sustaining-Cost (AISC) for BGDFF's Tunkillia gold production?

The All-in-Sustaining-Cost (AISC) for the Tunkillia Project is A$1,917/oz Au, as reported in the Initial Scoping Study.

When will BGDFF complete the Optimised Scoping Study for Tunkillia?

Barton Gold Holdings plans to complete the Optimised Scoping Study (OSS) before June 30, 2025.

What improvements have been found in BGDFF's recent Tunkillia comminution tests?

Recent comminution tests have shown significantly reduced work indices and power consumption for all material types, plus increased throughput rates for oxide materials during early operations.

What are the main objectives of BGDFF's Tunkillia Optimised Scoping Study?

The key objectives are to reduce power consumption, improve project economics, and de-risk project working capital requirements.

Barton Gold

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