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Manuka Resources Limited (“Manuka” or the “Company”) is pleased to provide a progress update on the restart of gold doré production from its 100% owned Mt Boppy gold mine (“Mt Boppy”) located in the Cobar Basin, NSW (Figure 1).
Highlights
- Manuka is executing a strategy to construct a fit-for-purpose processing and gold doré production facility at its 100% owned Mt Boppy gold mine.
- Previously, ore from Mt Boppy had been hauled to and processed at the Company’s CIL plant located at the Wonawinta Silver Mine (“Wonawinta”) 150km south of Mt Boppy.
- Mt Boppy is forecast to be a low capex (A$11.6M), high margin (~A$19M EBITDA per annum) operation1.
- Relocation of the existing 400kW ball mill located at Wonawinta to Mt Boppy has commenced. The ball mill is surplus to requirements at Wonawinta where a 1800kW ball mill has been previously installed.
- Acquisition of a second-hand Inline Pressure Jig (IPJ) and Intensive Leach Reactor (ILR) has resulted in approximately A$850k savings versus that originally budgeted. The purchased equipment is currently undergoing refurbishment at Gekko Systems, the original equipment manufacturer.
- The Company is currently investigating opportunities to increase milling capacity and accelerate gold production at Mt Boppy.
- The Company is targeting first gold production from Mt Boppy in Q4 2024.
Dennis Karp, Manuka’s Executive Chairman, commented:
“The execution of our plan to restart gold operations at Mt Boppy is well underway.
The opportunistic purchasing of selected second-hand processing equipment is consistent with our low capex strategy that includes the leveraging and repurposing of existing assets including the Wonawinta 400kW ball mill, diesel generators, 48-man accommodation camp and mobile screening plant.
We look forward to providing regular updates to the markets as we progress towards first gold production at Mt Boppy.
Figure 1: Location of Manuka’s Mt Boppy and Wonawinta Project within the Cobar basin.
Background
The Mt Boppy gold mine is an existing gold operation comprising a brownfields open pit and associated historic ROM stockpiles, rock dumps and tailings.
In April 2024, Manuka announced a strategy whereby a fit-for-purpose processing and gold production facility would be established at Mt Boppy for a capital cost A$11.6M to generate an average EBITDA of ~A$19M per annum over an initial 5-year period2.
A sonic drilling program over the Main Rock Dump and Tailings Storage Facility 3 (“TSF3”) was completed in late 2023 which improved confidence in Resource3 grade and ore type distribution and underpins the updated production strategy.
Previously, ore mined by Manuka at Mt Boppy had been hauled 150km to the CIL process plant located at Wonawinta at a cost of ~A$27/t. The updated strategy of on- site processing is expected to save in the order of A$7M per annum.
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This article includes content from Manuka Resources Limited, 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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Manuka Resources
Investor Insight
Manuka Resources’ unique value proposition is focused on its three fully licenced projects, which include two precious metals assets in one of Australia’s most prolific regions for base and precious metals, and a company-making iron sands (vanadium and titanium co-products) project in New Zealand’s exclusive economic zone (EEZ) off the Taranaki bight. Manuka Resources is well-placed to deliver significant shareholder value, driven by a phased strategy that includes a clear pathway to near-term precious metals production.
Strategy Overview
Manuka Resources (ASX:MKR) is focused on bringing its precious metals assets in the Cobar Basin into production, as well as progressing its New Zealand domiciled Taranaki VTM iron sands project.
The company previously revealed a phased strategy focused on delivering maximum value to its shareholders. The first phase focused on bringing back the Mt Boppy gold mine into production and it released an optimised production plan for the mine restart. At the time, the company believed silver production would follow gold but noted it was flexible in this regard. In any event and simultaneous to this, will be the ongoing development of the Taranaki vanadium titano-magnetite (VTM) project.
The Cobar Basin located in the central-west of New South Wales, is one of the richest mining provinces in Australia, home to some of Australia’s largest mining companies and explorers.
The Mt Boppy gold mine was historically one of the richest in NSW, Australia and produced ~500,000 oz gold at an average grade of 15 grams per ton (g/t) gold. Accordingly, the company is very excited about its exploration potential.
Drone image looking South showing the main components of the Rock Dump and tailing resources in relation to the Mt. Boppy open pit.
The initial five-year mine plan is largely focused on the screening and processing of gold-bearing waste material above ground on the Mt Boppy mine site. The company had been processing these wastes from June 2023 to December 2023 at its Wonawinta plant and now will look to optimize the process.
The Wonawinta silver project will be the largest primary silver producer in Australia and expected to be back in silver production within 12 months. Manuka has released a maiden ore reserve (under its ownership) of 4.8Mt1 at 53.8g/t silver containing 8.4Moz of silver comprising proven ore reserves of 0.8Mt at 50.8g/t silver; and probable ore reserves of 4.1Mt at 54.3g/t silver. Ore Reserve is based solely on shallow (<40m deep) oxide material.
The Wonawinta 100tph Ball Mill
The gold and silver market appears to be in an upward trend, with prices for both precious metals hitting their all-time highs recently, in Australian dollar terms for silver, which bodes very positively for MKR.
Company Highlights
- Manuka Resources is an ASX-listed mining company focused on producing gold and silver from its two 100 percent owned fully permitted projects (one gold and one silver) in the Cobar Basin in New South Wales, Australia.
- In addition, MKR’s wholly owned subsidiary Trans-Tasman Resources Limited (“TTR”) is the owner of the Taranaki VTM (vanadiferous titanomagnetite) iron sands project, located in the New Zealand EEZ, off the south-west coast of the north island.
- Manuka released the details of the Taranaki VTM project’s pre-feasibility study (PFS) on 26 March 2025, which highlights the extremely robust economics of the project with an NPV10 of US$1.2B and IRR 39 percent
- TTR will also be lodging its application under New Zealand’s Fast Track Approvals Act for the Taranaki VTM project imminently. (The project was included in Schedule 2 of the Act). Successful conclusion of review under the Fast Track pathway will result in final regulatory approvals (marine discharge consent) being granted, completing the full suite of consents to operate the project for 20 years.
- The Company’s primary focus for its precious metals assets is on bringing both the fully permitted Wonawinta silver project and the Mt Boppy gold mine back into production during 2025. The Wonawinta processing plant (primarily constructed for silver production in 2012 with production capacity of 850,000-1 million tpa) has been recently used for both gold and silver processing and is on active care and maintenance for rapid restart..
- The Wonawinta silver project was previously the largest primary producer of silver in Australia, and Manuka expects this to again be the case once production restarts.
- While the substantially higher gold prices have been securing headlines over the past six months, it is worth noting that the silver price is also trading at an all time high which makes restarting the project very attractive (the all time high for silver is against the Australian dollar, currently silver is around AU$54/oz silver).
- Manuka released its maiden silver reserve in October 2024 making it the only production ready silver reserve on a project based in Australia.
- Elevated gold and silver prices should materially benefit Manuka Resources, resulting in strong profitability and cash flows once its projects move into production.
Key Projects
Mt Boppy Gold Project
The Mt Boppy gold project comprises three mining leases, four gold leases and one exploration license, spanning an area of more than 210 sq km in the prolific Cobar Basin in New South Wales, Australia. The project was acquired by Manuka in 2019 and has a current mineral resource of 4.3 Mt at 1.19 g/t gold. This includes a combination of oxidized and transitional/fresh mineralization in the ground, as well as mineralized rock dumps and tailings.
Historically, Manuka Resources has processed its stockpiles and gold mineralized waste products through its Wonawinta processing plant. However, inefficiencies associated with trucking and processing ore at the distant Wonawinta plant has led the company to revise its strategy. It is now looking to construct a processing plant at Mt Boppy so that ore from the mine can be processed on-site. Mt Boppy has excellent infrastructure including a 48-person mine camp and is fully permitted for the proposed processing plant and on-site production.
The updated mineral resource comprises 4.28 Mt at 1.19 g/t gold for 163 koz of contained gold, of which 82 percent is in the measured and indicated categories.
An on-site plant will offer significant cost savings and improve the project economics.
Manuka Resources anticipates Mt Boppy to deliver total EBITDA of >AU$90 million and cash flow of >AU$80 million over a five-year mine life.
Wonawinta Silver Mine Project
The Wonawinta plant
The Wonawinta project is fully permitted with all the necessary infrastructure, including an 850,000 to 1 million tpa processing plant. The plant has been used for processing ore from Mt Boppy. The Wonawinta silver mine is currently under care and maintenance. The company is considering the possibility of resuming operations at Wonawinta, leveraging the improved silver price environment. Manuka has released a maiden ore reserve (under its ownership):
- Ore Reserve of 4.8 Mt at 53.8 g/t silver containing 8.4 Moz of silver comprising:
- Proved Ore Reserves of 0.8 Mt at 50.8 g/t silver; and
- Probable Ore Reserves of 4.1 Mt at 54.3 g/t Ag.
The maiden silver ore reserve and the preparation of an implementation plan for Wonawinta support the potential restart of silver mining and processing operations in the near
future. The company is reviewing its silver restart plans in light of the current price increases and expects to announce a decision before the end of May 2025.
Taranaki VTM Project
The Taranaki VTM project is located within New Zealand's exclusive economic zone, approximately 22 to 36 kilometres offshore, outside the 12 nautical mile boundary from the coastline. The project boasts a JORC resource of 3.2 billion tons at 10.17 percent iron oxide, 1.03 percent titanium dioxide and 0.05 percent vanadium oxide. It holds a mining license allowing initial extraction of 50 million tons annually, resulting in 5 million tons of VTM concentrate per year for 20 years (concentrate grade of 56 to 57 percent iron, 8.5 percent titanium dioxide and 0.5 percent vanadium pentoxide). At this extraction rate, the JORC resource provides approximately 60 years of potential mining inventory.
The project was included in the New Zealand government's Schedule 2 of the Fast Track Approvals Act 2024. The next step for Manuka was to complete pre-feasibility study (“PFS”) on the project. This was released to the market on 26 March 2025 and presents an extremely robust economic outlook for the project as can be seen below.
Management Team
Dennis Karp – Executive Chairman
Dennis Karp is a former commodities trader with nearly four decades of corporate experience. He started his career in 1983 and worked in HSBC until 1997 before moving to Tennant, one of Australia’s largest physical commodities trading companies with operations in Asia and Europe. He was a principal shareholder of Tennant Metals until 2010 and a managing director until December 2014. He founded ResCap in December 2014. Since then, he has participated in diverse resource projects and investment opportunities across base metals and bulk commodities. He holds a Bachelor of Commerce from the University of Cape Town.
Alan Eggers – Executive Director
Alan Eggers has over 40 years of experience in the mining sector. He is a geologist and was the founder of Summit Resources, which became an ASX top 200 company and was acquired by Paladin Energy in 2007 for AU$1.2 billion. Throughout his career, he has held director positions at numerous companies. He holds a Bachelor of Science, Honours, and Master of Science degrees from Victoria University of Wellington. He is recognized as a fellow of the Society of Economic Geologists and holds memberships in AusIMM and the Australian Institute of Geoscientists.
John Seton – Non-executive Director
John Seton is a lawyer with extensive experience in the mineral resources sector. He has served as director in several ASX and NZX listed companies. He holds a Bachelor of Laws from Victoria University, Wellington, and a Master of Law (Honours) from the University of Auckland and is a chartered fellow of the New Zealand Institute of Directors.
Haydn Lynch – Chief Operating Officer
Haydn Lynch has over 25 years of experience in M&A, capital markets and private equity. He has been involved in executing several domestic and cross-border transactions in various sectors including metals and mining, and industrials. He has held leadership roles in global investment banks, including Bankers Trust Australia, Investec Bank, RBC Capital Markets and Southern Cross Equities. He has undergraduate degrees in mechanical engineering and economics from the University of Queensland and a Master in Commerce from the University of New South Wales.
Dieter Engelhardt – Chief Metallurgist and General Manager
Dieter Engelhardt has over 30 years of experience in the mining industry including roles as senior metallurgist at Telfer Gold Mine and Northparkes Mines, resident manager at McKinnons Gold Mine, and manager of ore processing at CSA Mine. Engelhardt was employed by Newcrest Mining (now Newmont) in various roles, including as manager of ore processing and principal metallurgist.
Phil Bentley – Chief Geologist
Phil Bentley has over 40 years of experience in the mining industry across New Zealand, South Africa, and Australia, holding senior geological roles as well as senior management and director positions. He has worked as a chief geologist at Randgold Resources and Randgold & Exploration, Global Head of Exploration at Trafigura Mining Services, and Principal Geologist Africa at CSA Global South Africa. He is a Qualified person under NI 43-101 (Canada) and JORC (Australia) and is a Fellow of the South African Geological Society. He holds a Bachelor of Science (Honours) in Geology at Victoria University of Wellington. He also has a Masters of Science in Economic Geology at Victoria University of Wellington and a Master’s of Science in Mineral Exploration from Rhodes University, Grahamstown South Africa.
Near-term production from both its silver and gold projects located in the Cobar Basin, Central West, New South Wales
High-Grade Gold Discovery in First 8 Mile Drill Hole
- First RC hole at 8 Mile discovers high-grade gold and ends in mineralisation
- 8 Mile gold mineralisation extends 75m north of tenement boundary
The 8 Mile target is located within the Gidji JV Project (“Gidji” or “the Project”), approximately 15 kilometres north of Kalgoorlie and surrounded by multiple gold mining and processing operations, including Northern Star Resources Limited’s (“NST”) Kalgoorlie gold operations (Figure 1).
The 8 Mile Target is located immediately adjacent to NST’s “8-Mile Dam” gold deposit which, according to the most recent publicly available data, contains an estimated 7Mt @ 1.4g/t Au for 313,977 ounces1.
A limited number of fast-tracked results from the first RC hole, GJRC029, show a wide zone of gold mineralisation with a similar tenor to 8 Mile Dam (18m @ 0.94g/t Au from 480m including 1m @ 6.04g/t Au), approximately 75m north of the tenement boundary, and ended in mineralisation (3m @ 0.52g/t Au).
The Company is awaiting assay results from the remainder of the hole which are expected in 2-3 weeks.
Miramar’s Executive Chairman, Mr Allan Kelly, said the Company was excited to see gold mineralisation continuing onto Miramar’s ground for a significant distance.
“This is the first time we have discovered significant gold mineralisation on our side of the fence, even though the drill hole didn’t end up exactly where we planned it to. The flip side of this is that we have extended the strike of gold mineralisation for over 100m on to our tenements,” he said.
“We’ve also demonstrated a relationship between the IP anomalism and gold mineralisation, which makes the other IP anomalies we have outlined at Gidji even more prospective,” he said.
Figure 1. The Gidji JV Project and 8-Mile Dam in relation to Kalgoorlie and surrounding deposits.
GJRC029 aimed to test an Induced Polarisation (IP) anomaly on the tenement boundary interpreted to represent the sulphide-rich gold mineralisation seen at the neighbouring 8 Mile Dam Deposit.
GJRC029 was collared approximately 10m north of the tenement boundary and mirrored MPGD008, a diamond hole drilled down-dip approximately 40m south of the tenement boundary by KCGM in 2013 and which intersected significant gold mineralisation related to the 8 Mile mafic unit.
Unfortunately, GJRC029 deviated significantly from the planned azimuth and, as a result, by the time the hole was terminated at the target depth of 504m, the drill trace ended up approximately 75m north of the tenement boundary (Figure 2). Despite this, the hole intersected a thick section of the steep westerly- dipping and highly altered 8 Mile mafic unit with widespread sulphide mineralisation, including disseminated magnetite and coarse-grained arsenopyrite, pyrrhotite and chalcopyrite, similar to the 8 Mile Dam Deposit (Figure 3).
Based on visual logging of RC drill chips, handheld portable XRF results and magnetic susceptibility measurements, samples from the bottom 56m of the hole were sent for priority analysis by fire assay at Bureau Veritas in Kalgoorlie.
The results from these initial samples confirm the relationship between the gold mineralisation and sulphides, and a relationship between the best gold mineralisation and coincident magnetic anomalism and elevated Arsenic as measured by handheld portable XRF. The first results also confirm that the IP anomaly is associated with potentially significant gold mineralisation, whilst the significant deviation of GJRC029 away from the planned target increases the potential strike length of gold mineralisation on Miramar’s ground.
Significant results are listed in Table 1, with assay results from the remainder of the hole expected in coming weeks.
The initial RC drilling programme, which also tested two other IP targets, is nearing completion and results will be reported once received and compiled.
Once all assays are received, the Company will plan further RC and/or diamond drill holes including to test the dip and strike extent of the mineralisation intersected in GJRC029.
The Company advises that the WA Department of Mines, Petroleum and Exploration (DMPE) has extended the main Gidji JV tenement, E26/214, for a further five years, and will now expire in March 2030.
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This article includes content from Miramar Resources Limited, 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.
Pacgold
Investor Insight
Pacgold is one of Australia’s most compelling gold exploration opportunities, backed by a strong technical team, offering investors exposure to a large-scale, underexplored gold system with significant resource growth potential.
Overview
Pacgold (ASX:PGO) is an Australian gold exploration company focused on the systematic advancement of the Alice River gold project in Northern Queensland. The company is led by a technically driven and highly experienced team of geologists and mining professionals, with demonstrated success in exploration, resource development and capital markets.
Pacgold team on site at Alice River gold project
With a dominant land position in the region, Pacgold holds 377 sq km of exploration permits and eight mining leases across the prospective Alice River Fault Zone (ARFZ). This structure is interpreted as part of a large-scale intrusion-related gold system, with characteristics analogous to major global deposits such as Fort Knox (USA) and Hemi (Western Australia).
The company has validated its model through drilling success at the Central Zone, culminating in a maiden mineral resource of 474,000 oz of gold. This comprises both open pit and underground components, with resource grades averaging 1.2 grams per ton (g/t) gold, and zones open in all directions. Less than five percent of the strike length has been tested, and much of the prospective corridor is obscured by thin sand cover, highlighting strong potential for blind discoveries.
With extensive infrastructure already in place, including an airstrip, accommodation camp and road access within 100 km, Pacgold is positioned to rapidly scale exploration and accelerate resource growth. The 2025 campaign, which includes more than 10,000 metres of RC drilling and new IP surveys, aims to unlock the full regional potential of the ARFZ.
Company Highlights
- District-scale Discovery Potential: Pacgold controls more than 377 sq km of tenure and more than 30 km of strike length across the Alice River Fault Zone (ARFZ), a fertile, underexplored structural corridor in Northern Queensland.
- Maiden Resource: In May 2025, the company published a 474,000 oz gold mineral resource estimate (MRE), covering just five percent of the total strike, confirming high-grade mineralization and strong potential for expansion.
- Aggressive Exploration Strategy: More than 10,000 metres of RC drilling campaign is underway, complemented by air-core and diamond programs, aimed at growing the Central Zone resource and testing multiple regional targets.
- Attractive Valuation Entry: With a market capitalization of just ~AU$10 million and an EV of AU$8.5 million (as of Q1 2025), Pacgold provides a low-cost entry into a potentially Tier 1 gold system.
- Experienced Leadership: The board includes proven mine developers and discovery geologists with prior success at Chalice, AngloGold Ashanti, BHP and Sibanye-Stillwater.
Key Project
Alice River Gold Project
The Alice River gold project is a large-scale, greenstone-hosted gold system centred on the regional ARFZ, located in Northern Queensland. The project area comprises 377 sq km of contiguous tenure, including eight granted mining leases. Pacgold controls over 30 km of strike length along the ARFZ, a major crustal-scale structure that has only recently been systematically explored with modern techniques.
The deposit style is interpreted as an intrusion-related gold system, a highly attractive deposit type known for hosting long-life, large-tonnage gold mines. Examples include the Fort Knox gold mine in Alaska and the Hemi gold project in Western Australia. The Alice River system features sheeted quartz-sulfide veining, extensive sericite-altered zones, and strong IP chargeability responses coincident with surface gold anomalism.
Pacgold’s 2024 and 2025 drilling campaigns have focused on the Central Zone, which yielded the maiden MRE totaling 474,000 oz gold across both open pit and underground resources. The pit-constrained resource includes 10.6 Mt at 1.2 g/t gold (404,000 oz), with a further 1.5 Mt at 1.4 g/t gold (71,000 oz) defined for underground potential. High-grade zones remain open at depth and laterally, with drill spacing still relatively broad (~80 x 80 metres), leaving significant scope for resource expansion.
Beyond the Central Zone, the company has delineated multiple high-priority regional targets along the ARFZ. These include:
- White Lion: A compelling target with surface gold anomalism and a coincident IP chargeability anomaly. A gradient and dipole-dipole IP survey is being extended in Q2 2025, with drilling expected in Q4.
- Victoria and The Shadows: Emerging prospects to the south with limited historical drilling but strong geophysical responses.
- Posie and Southern Target Area: Additional areas along the southern ARFZ strike that exhibit strong structural preparation, geochemical responses and potential for concealed mineralization.
Drilling recommenced in April 2025, with RC drilling underway and air-core and diamond drilling scheduled through Q3 2025. The program aims to increase drill density in resource zones and test underexplored regional anomalies. Pacgold expects up to 15,000 metres of total drilling during the 2025 campaign, coupled with ongoing geophysical targeting, including IP and drone magnetics.
The project is fully permitted, with strong access and logistics, and is located in a low-risk jurisdiction with significant precedent for gold development. With limited historical exploration and clear mineralizing controls now defined, Alice River represents a transformative opportunity to uncover a Tier 1 discovery in an overlooked Australian belt.
Management Team
Matthew Boyes – Managing Director and CEO
Matthew Boyes is a geologist with over 28 years of international experience across mine geology, exploration, corporate leadership and capital markets. He has managed exploration teams and development projects across Western Australia, the Americas and Europe. His technical oversight and commercial strategy guide Pacgold’s resource growth and investor engagement.
Caoilin Chestnutt – Non-executive Chair
A former head of business development at BHP and currently head of technical services at Thiess, Caoilin Chestnutt brings nearly 30 years of experience in global exploration strategy, M&A and deal structuring across multiple commodities. She is also deputy chair of Critical Minerals at the Queensland Exploration Council.
Michael Pitt – Non-executive Director
Michael Pitt is the co-founder of New Century Resources (ASX:NCZ), and former VP of business development at Sibanye-Stillwater (JSE:SSW). He currently leads development at Broken Hill Mines. His expertise in mine redevelopment and business strategy supports Pacgold’s long-term operational execution.
Richard Hacker – Non-executive Director
Former CFO and GM commercial at Chalice Mining (ASX:CHN), Richard Hacker played a key role in the Julimar discovery. He has held leadership roles at Liontown Resources and DevEx. Hacker contributes deep experience in financial oversight and strategic planning for discovery-stage companies.
Bruce Kendall – Non-executive Director
Bruce Kendall is an award-winning exploration geologist with over 30 years in exploration management at AngloGold Ashanti, Chalice Mining, Jabiru Metals and IGO. He was a key contributor to the Tropicana, Julimar and Coyote discoveries, and brings essential geological insight to Pacgold’s targeting and evaluation.
Geoff Lowe – Exploration Manager
As a Competent Person and seasoned exploration geologist, Geoff Lowe is responsible for executing Pacgold’s field campaigns. He has played a central role in resource modeling, target generation and drill program design for the Alice River project.
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