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Brightstar Resources Limited (ASX: BTR) (Brightstar) is pleased to announce it has received the assays from its +2,000m RC drilling program at Cork Tree Well (CTW), located 30km north of Laverton in the prolific Laverton Gold Belt of Western Australia.
HIGHLIGHTS
- Results from the 9 hole, +2,000m RC drilling program at Cork Tree Well have been received with numerous high-grade hits including:
- 1m @ 109.6g/t Au from 167m and 3m @ 8.7g/t Au from 197m (BTRRC224) - Delta
- 18m @ 2.75g/t Au from 83m (BTRRC225) - Delta
- 9m @ 3.05g/t Au from 203m (BTRRC229)
- 13m @ 1.24g/t Au from 156m (BTRRC232)
- Delta is currently the northern-most section of the Cork Tree Well system defined to date and is open for a further 3km along strike to the north
- Delta is the highest-grade area with no historical mining and represents the first likely area of mining in a future mining scenario
- A ~4,500m aircore drilling campaign at Cork Tree Well is commencing in September, targeting extensions to the north with +3km of untested and highly prospective strike
- Scoping Study for the Menzies and Laverton Gold Projects nearing completion
Brightstar’s Managing Director, Alex Rovira, commented:
“We are pleased to receive the final assays from the Laverton Gold Project RC program, after successful completion of the recent drilling at Menzies. The Cork Tree Well program had two defined objectives – the first being infill drilling at the Delta zone within the CTW mineral resource to provide better understanding on the structures controlling the higher-grade mineralisation, and the second to test the higher grade plunging shoot within the CTW main system as a follow up to drilling earlier in the year, which indicated mineralisation that has the potential for possible extraction using underground mining methods.
At Delta, the three-hole program saw the holes drilled on different orientations to the historic drilling that has previously tested the broadly North-South striking system at CTW. Encouragingly, the results indicate that the structures containing the mineralisation are different to the main CTW zone and see both a lithological and orientation change, which may be due to the confluence of multiple structures hosting the gold mineralisation. This requires further follow up and significantly increases the potential for definition of further mineralisation at Delta and to the north, which is open for a further 3km. Brightstar has booked aircore drilling contractors to mobilise in early September for a ~4,500m campaign, which is intended to define targets for follow up RC drilling.
With the scoping study nearing finalisation, planning for further RC and Diamond drilling at Menzies and Laverton is underway to commence later in the year in order to continue to grow the mineral resource base, upgrading resources within early-stage mining areas, and advance the projects towards near term production opportunities.”
Figure 1 - Plan View with RC collar locations and section lines
Technical Discussion – Cork Tree Well
The drilling program at Cork Tree Well was focused on two defined areas, namely the Delta Prospect to the north, and a high-grade plunging shoot within the main CTW ore body. The results are displayed in Table 1, where significant intercepts were recorded in eight of the nine holes drilled. The drill hole collar locations and cross / long section lines are indicated in the plan view in Figure 1.
The gold mineralisation in the Cork Tree Well historically mined pits and main MRE zone is associated with steep east dipping sedimentary units, in particular the chert horizon located on the footwall of the sediment sequence. The mine area consists of footwall, high magnesium basalts altered to chlorite schist overlain by shales containing chert and banded iron beds and younger hangingwall basalts.
Figure 2 - Long Section of CTW Mineral Resource with Delta displayed as the northern-most MRE envelope (right-hand side)
Delta Target
The mineralisation at Delta to the north of Cork Tree Well is associated with a sheared granophyric dolerite within a talc chlorite schist host, with an underlying ultramafic footwall which contrasts with the general CTW mine geology sequence. Gold at Delta is associated with quartz stringers within the granophyric dolerite, which has resulted in Brightstar’s geological theory being refined to gold mineralisation being linked to brittle-ductile deformation as replicated elsewhere in the Laverton district.
The drilling at Delta was completed on different azimuths to the historical drilling, which has largely been completed on a 260-degree orientation to test the perceived NNW-SSE strike direction in accordance with the main mineralisation at CTW. Whilst this orientation for drilling is suitable for the main CTW ore body, the Delta area appears to host significantly higher grades with multiple lodes and different perceived orientations that may be the result of multiple different mineralising events and geological controls. Further drilling, including diamond drilling, is being planned to provide further geological information and assessment.
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This article includes content from Brightstar Resources, licensed for the purpose of publishing on Investing News Australia. This article does not constitute financial product advice. It is your responsibility to perform proper due diligence before acting upon any information provided here. Please refer to our full disclaimer here.
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Brightstar Resources
Investor Insight
A gold-focused emerging gold producer with a clear pathway to production growth, Brightstar Resources presents a compelling investment case driven by its mining and development hubs strategy and a district-scale resource opportunity.
Overview
The price of gold stays strong. In April 2024, the yellow metal’s price passed US$2,400 per ounce for the first time. The reason is multifaceted. The world teeters on the brink of a severe recession while some markets attribute the increase to safe haven rush. Amidst ballooning interest rates, bank failures and falling bond yields, demand for gold continues to rise. At this precise moment, gold is simultaneously an excellent portfolio diversifier and a compelling hedge against ongoing inflation — particularly if one invests in the right company.
Brightstar Resources (ASX:BTR) aims to be that company. An emerging mining and development company, Brightstar occupies a strategic land position of roughly 1,200 square kilometers in the Sandstone Greenstone Belt, 300 square kilometers in the Laverton Tectonic Belt and 80 square kilometers of the Menzies Shear Zone.
The company also owns an existing processing facility that can potentially provide tremendous shareholder value in a low-capital cost restart scenario.
That plant, once fully refurbished and operational, could prove a key differentiator for the company, enabling fast gold production at a low capital cost. This is especially noteworthy given that many other gold companies trading on the ASX are largely focused on greenfield exploration and development. Even once those companies discover a promising resource, mining and processing facilities would still need to be built, undertakings which can incur significant upfront capital costs and take several years.
Brightstar's Laverton gold assets are all centered on a 100 percent-owned 300-square-kilometer tenure in the Laverton Tectonic Zone and all within 70 kilometers of the Laverton Processing Plant. Additionally, all resources within this zone are open along strike and at depth. Only minor drilling programs have been conducted in recent years, paving the way for significant exploration upside with the potential for further regional and greenfields discoveries.
Brightstar also owns 100 percent of the Menzies Gold Project, a contiguous land package of granted mining leases over a strike length of roughly 20 kilometers along the Menzies Shear Zone and adjacent to the Goldfields Highway.
In 2023 and 2024, the company announced a mineral resource upgrade to the Cork Tree Well deposit (Laverton gold project) and also delivered two maiden mineral resource estimates at the Link Zone and Aspacia deposits (Menzies gold project). This has grown the total group MRE by approximately 150 koz gold through organic exploration.
The company has also acquired 100 percent of the shares and options of Linden Gold Alliance, a gold producer, developer and explorer with existing mineral resources of 350 koz @ 2.1 g/t gold near Brightstar in the Laverton district. Brightstar’s MRE has reached 1.1 Moz gold across the Menzies and Laverton projects, with an additional 0.35 Moz gold in resources added after the successful acquisition of Linden Gold Alliance.
In August 2024, Brightstar entered into a scheme implementation deed to acquire 100 percent of Alto Metals (ASX:AME), which owns the Sandstone gold project located in East Murchison. The project has a current mineral resource of 1.05 Moz of gold at 1.5 g/t.
Brightstar also completed the acquisition of the gold rights at the Montague East gold project (MEGP) from Gateway Mining Limited (ASX:GML). The project is located 70 km from the Sandstone gold project. The acquisition adds a further 9.6 Mt @ 1.6 g/t gold for 0.5 Moz gold to Brightstar’s JORC Mineral Resource Estimate, giving the company a total mineral endowment of 38.3 Mt @ 1.6 g/t gold for 2.0 Moz gold.
The acquisition of the MGEP from Gateway Mining and 100 percent of Alto’s shares creates a third district-scale resource base for the company called the Sandstone Hub. Upon consolidation of the Laverton, Menzies and Sandstone hubs, Brightstar’s mineral resources would reach 3 Moz at 1.5g/t gold.
Subsequent to the deal with Alto Metals, Brightstar entered into a $4 million drill-for-equity agreement with Topdrill to aggressively advance the consolidated Sandstone gold project. The deal strengthens Brightstar's financial capacity to fulfill its multi-hub exploration and development strategy, which includes the Menzies, Laverton and Sandstone hubs.
Company Highlights
- Brightstar Resources is an ASX-listed mining and development company with more than 3 million ounces of gold resources and an on-site processing infrastructure across its project locations in Laverton, Menzies and Sandstone in Western Australia.
- Brightstar's mineral assets are situated across roughly 300 square kilometers of 100-percent-owned land in the Laverton Tectonic Zone and ~80 square kilometers in the high-grade Menzies Shear Zone.
- The Laverton Gold project has a mineral resource of 9.7 Mt @ 1.6 g/t gold for 511 koz gold and the Menzies gold project has 13.8 Mt @ 1.3g/t gold for 595 koz gold.
- In 2023, the company completed a scoping study into the development of its Menzies and Laverton gold projects and the refurbishment and restart of its processing plant in Laverton.
- In 2023 and 2024, Brightstar completed a small-scale mining joint venture with BML Ventures which involved a 50/50 profit-sharing agreement to exploit the Selkirk deposit at Menzies. In April 2024, Brightstar announced that this joint venture delivered a net profit to Brightstar of $6.5 million.
- In June 2024, the company successfully acquired all of the issued ordinary shares and options in Linden Gold Alliance, a gold producer, developer and explorer with existing mineral resources of 350 koz @ 2.1 g/t gold near Brightstar in the Laverton district.
- As part of the merger with Linden Gold, Brightstar released a scoping study into Linden’s development-ready Jasper Hills gold project, which delivered key metrics including:
- 140 koz mined over 3.75 years (35 koz pa)
- Net present value of AU$99 million
- Internal rate of return of 736 percent
- Pre-production capital requirements of $12 million
- All-in sustaining costs of AU$1,972/oz
- Jasper Hills is located just 50 km SE of Brightstar’s processing plant in the Laverton gold project
- Brightstar has recently completed the acquisition of the gold rights at the Montague East gold project (MEGP) from Gateway Mining Limited (ASX:GML), and has entered into an agreement to acquire Alto Metals (ASX:AME) further creating the company’s third district-scale resource base known as the Sandstone Hub.
- Brightstar plans to continue generating shareholder value through a combination of development and strategic acquisitions along with some exploration.
Key Projects
Laverton Hub
Brightstar’s Laverton hub is comprised of the Cork Tree Well, Beta and Alpha project areas with the addition of the Second Fortune gold mine and the Jasper Hills projects.
Highlights:
- Cork Tree Well, Alpha and Beta have current total JORC mineral resource estimate of 9.7 Mt @ 1.6 g/t gold for 511 koz (52 percent measured and indicated category). All mineral resources are on granted mining leases
- Cork Tree Well (6.4 Mt at 1.4 g/t gold for 303 koz gold)
- Alpha (1.4 Mt at 2.3 g/t gold for 106 koz gold)
- Beta (1.9 Mt at 1.7 g/t gold for 102 koz gold)
- Main project area Cork Tree Well is open at depth and along strike with recent drilling results of 34.4 meters at 7.94 g/t gold from 43.5 meters (CTWMET004) and 27.6 meters at 17.8 g/t gold from 51 m (CTWMET003)
- Second Fortune has a mineral resource estimate head grade of ~11g/t gold with an average ore body width of ~0.6 meters.
- Jasper Hills is located 50 km from Brightstar’s existing processing facility along a wholly-owned private haul road, allowing unimpeded, direct access to both projects
- Permitted, previously mined and production-ready
- Last mined by current owners in 2020 with 23,000 oz gold mined
- Scoping Study outcomes include:
- Pre-production capex of $12 million required (maximum capital drawdown)
- Open pit mine at Lord Byron and underground mine at Fish
- Production of 141 koz over four years (35 koz per annum)
- LOM EBITDA of $135 million (@ AU$3,000/oz)
Menzies Hub
The Menzies Hub comprises a tenement holding of a contiguous land package of granted mining leases over a strike length of more than 20 km. The majority of deposits hosted along the Menzies Shear Zone are located adjacent to Goldfields Highway in Menzies (130km north of Kalgoorlie).
Highlights:
- Total Current Resource: 13.7 Mt at 1.3 g/t gold for 595 koz gold (36 percent measured and indicated)
- September 2023 scoping study showed the simultaneous development of open pit mining at Lady Shenton system and underground mining at Yunndaga:
- 1.9 Mt @ 1.63 g/t Au (100 koz) in open pit mining at Lady Shenton
- 650 kt @ 2.91 g/t (60 koz) in underground mining at Yunndaga
- Low capex of $22 million
- Significant opportunities to find virgin discoveries and brownfields mineral resource growth:
Sandstone Hub
The consolidated Sandstone project is over 100 km from existing third-party milling operations in the Murchison. This third processing hub boasts Alto’s Sandstone project with a mineral resource of 1.05 Moz at 1.4 g/t gold and Gateway’s Montague gold project with a mineral resource of 0.5 Moz @ 1.6 g/t gold.
Brightstar aims to fast-track the development timetable through:
- A focused, multi-rig infill drill out to take the inferred mineralisation into measured and indicated status to underpin mining studies and project advancement
- The application of Brightstar’s dedicated in-house geological and mining engineering team to retain crucial project IP and fast-tracked mining studies;
Brightstar Processing Facility
Situated close to Brightstar's existing mineral assets at Laverton, the Brightstar Processing Plant provides the company with a considerable operational head start over its peers.
Highlights:
- Extensive Infrastructure: Current facilities at the plant include two ball mills, a power station and gravity and elution circuits. Other infrastructure includes:
- A tailings storage dam
- An on-site process water pond
- A 60-person accommodation camp
- An airstrip at the Cork Tree Well Project
- Vehicles and equipment include a forklift, bobcat, two loaders, multiple light vehicles and a 30-tonne crane.
- A Leg Up Over Competitors: The presence of pre-existing processing infrastructure represents significant time savings compared to greenfields development. Brightstar had an independent valuation completed which valued the processing plant at AU$60 million in replacement value.
- Low Upfront Capital Cost: As part of the scoping study released in September 2023, GR Engineering estimated a capital cost requirement to refurbish and expand the milling capacity would cost just AU$18.5 million.
- Close to Existing Assets: Brightstar's major development projects — Cork Tree Well, Jasper Hills, Beta and Alpha — are all close to the plant.
Gold doré bars (BTR005 – BTR016) poured on 9 March 2024
Management Team
Alex Rovira - Managing Director
Alex Rovira is a qualified geologist and an experienced investment banker having focused on the metals and mining sector since 2013. Rovira has experience in ASX equity capital markets activities, including capital raisings, IPOs and merger and acquisitions.
Richard Crookes - Non-executive Chairman
Richard Crookes has over 35 years’ experience in the resources and investments industries. He is a geologist by training having previously worked as the chief geologist and mining manager of Ernest Henry Mining in Australia.
Crookes is managing partner of Lionhead Resources, a critical minerals investment fund and formerly an investment director at EMR Capital. Prior to that he was an executive director in Macquarie Bank’s Metals Energy Capital (MEC) division where he managed all aspects of the bank’s principal investments in mining and metals companies.
Andrew Rich - Executive Director
Andrew Rich is a degree qualified mining engineer from the WA School of Mines and has obtained a WA First Class Mine Managers Certificate. Rich has a strong background in underground gold mining with experience predominantly in the development of underground mines at Ramelius Resources (ASX:RMS) and Westgold Resources (ASX:WGX).
Ashley Fraser - Non-executive Director
Ashley Fraser is an accomplished mining professional with over 30 years experience across gold and bulk commodities. Fraser was a founder of Orionstone (which merged with Emeco in a $660-million consolidation) and is a founder/owner of Blue Cap Mining and Blue Cap Equities.
Jonathan Downes - Non-executive Director
Jonathan Downes has over 30 years’ experience in the minerals industry and has worked in various geological and corporate capacities. Experienced with gold and base metals, he has been intimately involved with the exploration process through to production. Downes is currently the managing director of Kaiser Reef, a high grade gold producer, and non-executive director of Cazaly Resources.
Matthew Bowles – Non-executive Director
Matthew Bowles is a senior corporate finance executive with extensive public corporate advisory, private equity and capital markets experience in the resources sector. Bowles has successfully negotiated domestic and cross border corporate funding, joint venture and M&A transactions for a number of ASX listed companies in Africa, the Americas and Australia. He was previously chief development officer for a West African focused ASX listed company. He commenced his career with Rio Tinto, working in corporate and commercial roles for nine years, before moving to London to work in banking and finance. Since his return to Australia, Bowles has held senior roles with global advisory firms, focusing on the resources sector. Bowles holds a Bachelor of Business, is a member of CPA Australia and a Fellow of the Financial Services Institute of Australia.
Dean Vallve – Chief Operating Officer
Dean Vallve holds technical qualifications in geology & mining engineering from the WA School of Mines, an MBA, and a WA First Class Mine Managers Certificate. Vallve was previously in senior mining and study roles at ASX listed mid-cap resources companies Hot Chili (ASX:HCH) and Calidus Resources (ASX:CAI).
High grade Massive Sulphide Intercepts Confirmed at Oval
HIGHLIGHTS:
- OVD027 confirms the continution of high grade massive sulphide from OVD0211 with an intercept of 6.1 metres of 4.16% Cu, 3.51% Ni, 0.G3g/t E3, and 0.13% Co from G8.2 metres encountered between broader high grade zones of:
- A dense disseminated intercept - 26.2 metres of 0.44% Cu, 0.52% Ni, 0.12g/t E3, and 0.03% Co from 72.0 metres and
- A net textured intercept - 15.3 metres of 1.15% Cu, 0.79% Ni, 0.35g/t E3, and 0.04% Co from 104.3 metres;
- A high grade broad intersection is confirmed at the central part of the Oval area by OVD026. It includes a massive sulphide intercept in hole OVD026 of 1.8 metres of 3.21% Cu, 3.32% Ni, 0.6Gg/t E3, and 0.14% Co from 105.0 metres within broader mineralisation of:
- 19.8 metres of 1.23% Cu, 0.98% Ni, 0.36g/t E3, and 0.05% Co from 91.2 metres.
OVD026 is located 100 metres northwest of the previously announced 8.8 metres of massive sulphide identified in drillhole OVD021.
On completion of the Phase 2 exploration work and receipt of all assays, Managing Director Gan-Ochir Zunduisuren, commented:“The 2024 Phase 1 and 2 drilling and exploration programs have confirmed the broad presence of high-grade mineralisation in the Oval gabbroic intrusion. The grades intercepted in some of the drillholes are exceptional and may be indicative of broader potential over a larger area, given Oval is a greenfields discovery.
The 2025 exploration program will focus on obtaining information on the size/metal content potential of the Oval Cu-Ni-PGE mineral system as well as targeting the possible deeper magmatic sources at Oval. Broader exploration is also planned at potential extensions of Oval and nearby look-a-like prospects. We look forward to updating shareholders on progress, with drilling expected to commence in around 8 weeks”.
Summary of Phase 2 exploration drilling at Oval Cu-Ni-PGE project
The Company’s recent drilling work has predominantly focused on finding high-grade mineralisation in the olivine-amphibole gabbro at the Oval project. The multiple intercepts of massive sulphide mineralisation with different ratios of metal contents throughout the Oval gabbroic intrusion is highly encouraging for the presence of one or more deeper sources of high grade mineralisation in the opinion of ABM.
Figure 1. Plan view of drillhole locations on high resolution magnetics map (RTP)
Drillhole OVD02c
Drillhole OVD026 was designed to test the Down-Hole Electromagnetic (DHEM) conductor plate identified as OVD007_L2_B (reinterpretation of OVD007_L2_A2 by Southern Geoscience Consultants), which exhibits a conductance of 1,000 siemens. The drilling intersected a total of 1G.8 metres of mineralisation with 1.23% Cu, 0.G8% Ni, 0.36g/t E3, and 0.05% Co from G1.2 metres including;
- 4.8 metres of @ 0.45% Cu, 0.43% of Ni, 0.14g/t E3, and 0.02% Co of dense disseminated mineralised gabbro from 91.2 metres,
- 6.6 metres of @ 1.56% Cu, 0.G0% Ni, 0.50g/t E3, and 0.04% Co of net textured mineralisation from G6.0 metres,
- 2.4 metres of @ 1.52% Cu, 1.3G% Ni, 0.43g/t E3, and 0.07% Co of semi massive sulphide mineralisation from 102.6 metres,
- 1.8 metres of @ 3.21% Cu, 3.32% Ni, 0.6Gg/t E3, and 0.14% Co of massive sulphide mineralisation from 105.0 metres, and
- 4.2 metres of @ 0.57% Cu, 0.45% of Ni, 0.21g/t E3, and 0.02% Co of dense disseminated mineralised gabbro from 106.9 metres (Table 1 provides a detailed breakdown of mineralisation intervals).
OVD026 is located in the Oval area, which is approximately 100 metres northwest of the previous intersection identified in drillhole OVD0213. This intercept may represent an extension of the known massive sulphide mineralisation in the Oval area and highlights the potential for further expansion of massive sulphide zones within the broader prospect area (Figures 1 and 3).
Click here for the full ASX Release
This article includes content from Asian Battery Metals PLC, licensed for the purpose of publishing on Investing News Australia. This article does not constitute financial product advice. It is your responsibility to perform proper due diligence before acting upon any information provided here. Please refer to our full disclaimer here.
Brightstar Resources Investor Kit
- Corporate info
- Insights
- Growth strategies
- Upcoming projects