Besra Gold Announces Significant Strides in Jugan Project BFS H1 2025 Jugan Project Update
Besra Gold Inc (ASX: BEZ) has reported significant progress in their Jugan Project's Bankable Feasibility Study (BFS) during H1 2025 in Sarawak, Malaysia. The company completed three metallurgical drillholes totaling 715 meters and advanced various technical studies including alternative processing assessments and geotechnical drilling.
Key developments include 9 out of 11 planned geotechnical drillholes completed, hydrogeological assessment planning, and preparations for Pilot Plant construction. The company is evaluating an innovative pyrolysis-based processing technology through Dundee Technologies as an alternative to conventional Pressure Oxidation (POX). The Pilot Plant project awaits only the renewal of Mining Lease ML 05/2012/1D to commence construction, with an expected four-month earthworks phase followed by seven months of construction.
Besra Gold Inc (ASX: BEZ) ha riportato progressi significativi nello Studio di Fattibilità Bancabile (BFS) del progetto Jugan durante il primo semestre 2025 a Sarawak, Malesia. La società ha completato tre perforazioni metallurgiche per un totale di 715 metri e ha avanzato diversi studi tecnici, inclusa la valutazione di processi alternativi e perforazioni geotecniche.
Tra gli sviluppi principali figurano 9 su 11 perforazioni geotecniche pianificate completate, la pianificazione della valutazione idrogeologica e i preparativi per la costruzione dell’impianto pilota. L’azienda sta valutando una tecnologia innovativa di pirolisi tramite Dundee Technologies come alternativa al tradizionale processo di Ossidazione a Pressione (POX). Il progetto dell’impianto pilota attende solo il rinnovo della concessione mineraria ML 05/2012/1D per iniziare la costruzione, con una prevista fase di lavori di scavo di quattro mesi seguita da sette mesi di costruzione.
Besra Gold Inc (ASX: BEZ) ha informado avances significativos en el Estudio de Factibilidad Bancable (BFS) de su Proyecto Jugan durante el primer semestre de 2025 en Sarawak, Malasia. La compañía completó tres perforaciones metalúrgicas que suman 715 metros y avanzó en varios estudios técnicos, incluyendo evaluaciones de procesos alternativos y perforaciones geotécnicas.
Los desarrollos clave incluyen 9 de 11 perforaciones geotécnicas planificadas completadas, planificación de la evaluación hidrogeológica y preparativos para la construcción de la Planta Piloto. La empresa está evaluando una tecnología innovadora basada en pirólisis a través de Dundee Technologies como alternativa a la tradicional Oxidación a Presión (POX). El proyecto de la Planta Piloto solo espera la renovación de la concesión minera ML 05/2012/1D para comenzar la construcción, con una fase de trabajos de tierra de cuatro meses seguida de siete meses de construcción.
Besra Gold Inc (ASX: BEZ)는 말레이시아 사라왁에 위치한 Jugan 프로젝트의 은행성 타당성 조사(BFS)에서 2025년 상반기에 중요한 진전을 보고했습니다. 회사는 총 715미터에 달하는 3개의 야금 시추공을 완료했으며, 대체 처리 평가 및 지반 조사 등 다양한 기술 연구를 진행했습니다.
주요 진전 사항으로는 계획된 11개의 지반 시추공 중 9개 완료, 수문지질 평가 계획 수립, 파일럿 플랜트 건설 준비가 포함됩니다. 회사는 전통적인 압력 산화(POX) 공정의 대안으로 Dundee Technologies를 통한 혁신적인 열분해 기반 처리 기술을 평가 중입니다. 파일럿 플랜트 프로젝트는 광산 임대권 ML 05/2012/1D 갱신만 남아 있으며, 4개월간의 토목 작업 후 7개월간의 건설이 예상됩니다.
Besra Gold Inc (ASX : BEZ) a annoncé des progrès significatifs dans l’étude de faisabilité bancaire (BFS) de son projet Jugan au premier semestre 2025 à Sarawak, Malaisie. La société a réalisé trois forages métallurgiques totalisant 715 mètres et a fait avancer diverses études techniques, notamment des évaluations de procédés alternatifs et des forages géotechniques.
Les développements clés incluent 9 des 11 forages géotechniques prévus achevés, la planification de l’évaluation hydrogéologique et les préparatifs pour la construction de l’usine pilote. L’entreprise évalue une technologie innovante de traitement par pyrolyse via Dundee Technologies en alternative à l’oxydation sous pression (POX) conventionnelle. Le projet de l’usine pilote attend uniquement le renouvellement du permis minier ML 05/2012/1D pour commencer la construction, avec une phase de travaux de terrassement de quatre mois suivie de sept mois de construction.
Besra Gold Inc (ASX: BEZ) hat im ersten Halbjahr 2025 bedeutende Fortschritte bei der bankfähigen Machbarkeitsstudie (BFS) ihres Jugan-Projekts in Sarawak, Malaysia, gemeldet. Das Unternehmen hat drei metallurgische Bohrlöcher mit insgesamt 715 Metern abgeschlossen und verschiedene technische Studien vorangetrieben, darunter alternative Verarbeitungsbewertungen und geotechnische Bohrungen.
Zu den wichtigsten Entwicklungen gehören 9 von 11 geplanten geotechnischen Bohrlöchern abgeschlossen, die Planung der hydrogeologischen Bewertung und die Vorbereitungen für den Bau der Pilotanlage. Das Unternehmen prüft eine innovative pyrolysebasierte Verarbeitungstechnologie über Dundee Technologies als Alternative zur herkömmlichen Druckoxidation (POX). Das Pilotanlagenprojekt wartet nur noch auf die Verlängerung der Bergbaulizenz ML 05/2012/1D, um mit dem Bau zu beginnen, mit einer erwarteten viermonatigen Erdarbeitenphase, gefolgt von sieben Monaten Bauzeit.
- Completion of 9 out of 11 planned geotechnical drillholes, strengthening mine planning confidence
- Evaluation of alternative processing technology that could provide environmental and social benefits
- Secured most local and departmental approvals for Pilot Plant construction
- Strategic drilling approach providing validation of resource tonnage and grade estimates
- Pilot Plant construction delayed pending Mining Lease ML 05/2012/1D renewal
- Alternative processing technology still unproven for this specific application
- Significant construction timeline ahead with 11 months total for earthworks and plant construction
Highlights
H1 2025 has seen significant strides in derisking key Bankable Feasibility Study (BFS) workstreams for the Jugan Project during H1 2025 including:
- Metallurgical test work.
- Trialling alternative processing techniques.
- Geotechnical assessment and tailings management studies.
- Hydrogeological groundwater studies.
- Mineral Resource Estimate update for Jugan, incorporating open-cut & underground, and
- Pilot Plant construction commencement awaits approvals.
Melbourne, Victoria--(Newsfile Corp. - June 25, 2025) - Besra Gold Inc (ASX: BEZ) (Besra or the Company) is pleased to provide an update on the activities undertaken during H1 2025 at its flagship Jugan Project, located within the Bau Gold Field in Sarawak, Malaysia. These activities reflect an increasing pace of de-risking the Project and building the technical foundations of the key disciplines required to complete the Jugan BFS in the shortest practical timeframe. Specifically, these activities include:
Metallurgical Test Work and Alternative Processing Assessment
As part of further derisking and strengthening the basis for the Jugan BFS assumptions, three fully cored metallurgical drillholes have been completed, totalling 715 metres. Core from the two 300-metre down-dip holes have been dispatched to ALS Laboratories in Perth for advanced metallurgical test work. The third hole, drilled to 115 metres, has been sent to Minefill Services in Newcastle, New South Wales, for tailings characterisation, including paste fill trials to support design considerations for potential underground mining operations.
In parallel, selected core intervals are being sent to Dundee Technologies in Canada to evaluate an alternative, patented processing route to conventional Pressure Oxidation (POX). This pyrolysis-based technology targets beneficiation of concentrate in order to produce on-site doré, while simultaneously converting arsenic-bearing tailings into a stable, vitrified (glass-based) form. If proven viable, this process could provide additional, meaningful environmental and social benefits, further de-risking the development pathway at Jugan.
These three metallurgical drillholes were angled to follow the dip of the mineralised zone, allowing for continuous sampling through most of the ore body. This approach was chosen to ensure the core collected is representative within the main mineable depth range and so provide validation of both the resource tonnage and grade estimates. In addition to the studies outlined above, all 715 metres of core are currently undergoing elemental analysis to further validate the updated Jugan Resource Model (ASX release dated 31 March 2025). This "proofing" will enhance confidence in the continuity of mineralisation and future mine development planning. Final assay results from all three holes are expected shortly, with release to the market anticipated in July 2025.
Geotechnical Drilling and Analysis
Geotechnical drilling, a key input for the BFS mine planning, has advanced significantly during H1 2025, following the deployment of a second drill rig. Of the 11 diamond drillholes (totalling ~2,700 metres) planned in late 2024, nine have been completed, with the remaining two expected by end-June 2025. This program is fundamental to obtaining representative core samples to determine geotechnical design parameters for both open-pit and underground mine plan configurations.
Minegeotech Services, a Perth-based specialist mining engineering consultancy, has been engaged to lead the analytical geotechnical workstream. Its output will provide parameters for modelling slope stability, underground access development and stope design, as well as rock mass classification—all key elements for de-risking the Jugan development strategy.
Hydrogeological Assessment
Planning has commenced for hydrogeological investigations at Jugan to estimate water inflows associated with the proposed open-pit and underground mine developments. The program is expected to include surface-based geophysical surveys—specifically electromagnetic (EM) and resistivity methods—to delineate subsurface water-bearing structures. Based on the results, the Company plans to install up to three test dewatering bores and three monitoring bores at strategically selected locations.
This work is aimed at quantifying the dewatering requirements for future mining operations and developing a robust understanding of the potential impacts on the local aquifer system for both the open-pit and underground components.
Pilot Plant Approvals and Site Readiness
The Company has secured nearly all required local and departmental approvals to commence construction of the Jugan Pilot Plant. These include environmental and civil works clearances, with only the renewal of Mining Lease ML 05/2012/1D remaining as the final outstanding item before mobilisation can occur.
To prepare the site, five civil earthworks geotechnical drillholes were completed in June 2025 beneath the proposed ore stockpile zones. The results will inform ground preparation requirements and ensure slope stability, enabling efficient and compliant earthworks execution once lease renewal is confirmed. This proactive approach underscores Besra's commitment to project readiness and minimising lead time to construction.
Managing Director (North Borneo Gold Sdn Bhd - NBG) Matthew Antill said:
"We have made excellent progress with our drilling program to source core specifically required by the key technical disciplines that underpin our Jugan BFS critical-path workstreams.
The Pilot Plant is essentially construction-ready, with commencement of earthworks contingent only on the renewal of ML 05/2012/1D. Once granted, we anticipate a rapid mobilisation and completion of earthworks within four months, followed by a seven-month construction phase."
Importantly, our in-country operations have been supported throughout the recent changes in Board composition which have been seamless in respect of NBG's operational activities."
Rig 76 and Rig 38 on their final 300 metre holes for the 1,720 metre geotechnical drilling programme.
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/3448/256807_1.jpg
Civils Geotechnical holes completed this month to finalise Pilot Plant stockpile surface stability requirements (lower right).
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/3448/256807_2.jpg
This announcement was authorised for release by David Potter, Chair of Besra Gold Inc.
Michael Higginson,
Company Secretary
N. America Contact:
James Hamilton
M +1-416-471-4494
To view the source version of this press release, please visit https://www.newsfilecorp.com/release/256807
FAQ
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