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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
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