The Conversation (0)
A preliminary study into the potential carbon dioxide (CO2) emissions from Impact Minerals Limited’s (ASX:IPT) Lake Hope High Purity Alumina (HPA) project in Western Australia has shown that Scope 1 and Scope 2 CO2 emissions will likely be significantly lower than incumbent processes that produce HPA, and on par or even much lower than emerging processes, in particular under a 100% renewable electrical energy development scenario (Figure 1).
- Scope 1 and Scope 2 CO2 emissions per tonne of HPA produced from the Lake Hope project to be on par with or lower than competing processes globally.
- The low emissions are similar for both metallurgical process routes (the Sulphate and LTL Processes) being considered for Lake Hope as part of the on-going Pre-Feasibility Study.
- A strategy to achieve zero carbon HPA has been defined including a 100% renewable energy development scenario.
- The Pre-Feasibility Study continues on schedule to be completed in Q4 this year.
The low emissions apply to both the Sulphate and Low-Temperature-Leach (LTL) processes that are being considered by Impact to produce HPA as part of the Pre-Feasibility Study for the development of the Lake Hope project (Figure 1 and ASX Releases February 19th, 2024, and February 27th, 2024).
Figure 1. Likely CO2 emissions for four different production methods for HPA: the incumbent alkoxide process; Alpha HPA Limited (ASX Release November 21st 2023); Impact’s proposed Sulphate and Low- Temperature-Leach processes; & AEM who produce HPA in Canada using hydroelectric power.
The emissions study has shown that using the current Western Australian electricity supply, likely emissions are 4.38 tonnes of CO2 per tonne of HPA produced via the Sulphate process and 3.44 tonnes of CO2 per tonne of HPA for the LTL process. This is competitive with traditional and emerging HPA production methods (Figure 1). For example, most of the world’s HPA production comes from the refinement of aluminium metal (alkoxide process) or precursors (modified Bayer process) via energy-intensive processes that are also responsible for significant amounts of toxic waste.
Scope 1 emissions generally relate to CO2 produced directly from operations and include the proposed mine, haulage of ore and the processing plant.
Scope 2 emissions relate mostly to CO2 produced from the energy used to power the company’s operations.
Scope 3 emissions related to CO2 produced indirectly from the company’s downstream activities and include the emissions associated with purchased goods and services such as reagents, plant and equipment and Business-As-Usual emissions such as travel and commuting to work.
Only Scope 1 and Scope 2 emissions have been considered at this stage as these are within the direct control of Impact Minerals and this is an appropriate level of detail for the Pre-Feasibility Study. As per standard CO2 accounting practices, Scope 3 emissions will be passed through to the fertilizer by-products. Initial indications are that these emissions will also be on par or lower than incumbent fertilizer production processes.
100% Renewable Energy
The largest contributor to the overall CO2 emissions from the Project come from Scope 2 emissions from the electricity required to power the processing plant and which has been modelled to come from the South West Interconnected System (SWIS), Western Australia’s main power source. The SWIS is currently coal-powered and the emissions from this have been used in the main model.
However, the WA Government is committed to making the SWIS entirely powered by renewables by 2030 (https://www.brighterenergyfuture.wa.gov.au). In addition, advances in renewables technology also offer the potential to power the process plant entirely by renewable energy. Accordingly, Impact’s study has also modelled the CO2 emissions under a 100% renewable energy scenario. This results in a significant further reduction in emissions for both of Impact’s process routes to about 1.35 tonnes of CO2 per tonne of HPA.
Within the accuracy of this study, which is plus or minus 30%, this would be on par with or better than the lowest known CO2 emissions for HPA production which is powered by hydroelectric power (Figure 1).
Impact’s strategy to move towards 100% renewable power is to build-out or contract-to-purchase a renewable energy supply for the processing plant. This will be studied as part of engineering and financial modelling under the PFS.
Net-Zero Carbon Strategy
Impact will strive to reach full decarbonisation of the project over time. This will require elimination or off-setting of the emissions from the SWIS as well as from mining, transport and calcining. Calcining, heating in a furnace, represents the final stage of the HPA process.
As noted above, the majority of the CO2 emissions can be eliminated by substituting 100% renewable energy for SWIS energy by either build-out or contract-to-purchase a renewable energy supply.
Click here for the full ASX Release
This article includes content from Impact Minerals, 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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Impact Minerals Limited
Investor Insight
With a mining lease application underway and a scoping study that shows excellent economics, Impact Minerals’ game-changing, advanced Lake Hope high-purity alumina project makes for a compelling investment case.
Overview
Impact Minerals (ASX:IPT) is an exploration and development mining company focused on discovering and developing new resource projects within Australia. Lake Hope, a transformational acquisition by the company and its current flagship asset, is a high-purity alumina (HPA) project in Impact’s home territory of Western Australia, a tier-one jurisdiction.
This advanced-stage project allows the company to fast-track the asset toward development, firmly establishing the company on the road to production and increasing shareholder value.
HPA is a high-value product with various uses in several industries that are key to the transition to a low-carbon world. It is mainly used in LED lighting, micro-LED screens, and ceramic-coated separators in lithium-ion batteries. Both these markets are forecast to grow dramatically over the next decade, and a looming supply shortage is predicted for 2026.
HPA is also necessary for producing synthetic sapphire and scratch-resistant glass. With these ever-widening applications for HPA, demand for this resource is expected to grow from US$3.18 billion to US$12.21 billion by 2030 with a compounded annual growth rate of about 20 percent.
Lake Hope is the company’s current focus as it moves towards production, and where a very shallow, high-grade resource of HPA precursor material has been identified in the top two meters of a dry salt lake. The deposit has unique physical and chemical properties that will allow for inexpensive digging and mining, with transportation to a processing facility off-site in an established industrial area. This will accelerate the approvals processes required to get into production.
With a mining lease application pending, Impact aims to bring Lake Hope, which contains almost 1 million tons of potential HPA, into production when the forecast average price for 4N HPA (99.99 percent Al2O3) and related products is about US$20,000 per ton. The ‘4N’ designation indicates the purity grade, making it suitable for high-tech end uses.
Outstanding economics from the latest scoping study released by the company shows Lake Hope’s potential to be the lowest-cost producer of HPA globally by up to 50 percent.
Lake Hope has a maiden mineral resource estimate (MRE) of 3.5 million tons at 25.1 percent alumina (Al2O3) for a contained 880,000 tons of alumina. The company also received heritage clearances for the entire Lake Hope deposit further de-risking the project and providing another critical component in the company’s application for a mining lease.
Impact completed a bulk sampling and test pits program at the Lake Hope project in December 2023, and later reached a key milestone by producing HPA greater than 99.99 percent (4N) purity from the metallurgical processing of lake clays acquired from Lake Hope.
In February 2024, a new proprietary metallurgical process for producing HPA from the lake clays was identified. Impact produced 99.99 percent (4N) Al2O3 from a low-temperature leach (LTL) process. The LTL process may lower the capital and operating costs to produce HPA compared to the sulphate process which underpinned the recent scoping study. The LTL process will be included in the ongoing pre-feasibility study in parallel with the sulphate process at marginal extra cost to determine the best processing route to HPA. The PFS is due to be completed in late 2024.
A comparison of the LTL process and the sulphate process
The company is well funded to finance the pre-feasibility study at the Lake Hope High Purity Alumina project and exploration activities at the Arkun battery minerals project.
Impact Minerals has been awarded a $2.87 million grant for the commercialisation of its innovative process to produce High Purity Alumina (HPA) from the Lake Hope deposit. The grant is under the Federal Government’s Cooperative Research Centres Projects (CRC-P) program which fosters short-term, industry-led research collaborations. The grant is part of an estimated $6.4 million research and development project to be completed within three years and designed to provide Impact with the relevant information required to complete a definitive feasibility. A key component of the grant funding will be to construct a pilot plant, which is a key goal for 2025, and this will provide consistent material for off-take and qualification trials.
Impact Minerals was also one of the inaugural cohort of seven companies selected to be part of the prestigious BHP Xplor program. BHP Xplor, an accelerator program introduced by BHP in August 2022, is designed to help provide participants with the opportunity to accelerate their growth and the potential to establish a long-term partnership with BHP and its global network of partners.
The BHP Xplor funding was used to identify new target areas for copper and other energy metals around the Broken Hill area in New South Wales, eastern Australia, where Impact has been quietly adding to its ground position for several years.
Additionally, the company is exploring its large Arkun battery metals project, also in Western Australia which covers nearly 2,900 square kilometres. Three new exploration licence applications were submitted recently immediately north of the Arkun project along trend from the recently discovered REE soil geochemistry anomalies at Hyperion, Swordfish and Horseshoe, and the Caligula copper anomaly. These anomalies require drill testing which will occur in 2024 and is an exciting development in the emerging mineral province of southwest WA.
A strong management team with over 50 years of combined industry experience leads the company. With a mining and exploration geology degree, Dr. Mike Jones, managing director, launched a long career consulting and leading mining organizations. Peter Unsworth, the non-executive chairman, has more than 35 years of experience in multiple financial sectors, such as securities industries and wealth management. Paul Ingram, a non-executive director, has led several mining companies since 2003. Impact Minerals has the experience and expertise to lead the company to success.
Company Highlights
- Impact Minerals is an exploration and development mining company focused on rapidly moving its flagship Lake Hope high-purity alumina (HPA) project toward production.
- The Lake Hope project has a high-grade maiden mineral resource estimate (MRE) of 3.5 million tonnes at 25.1 percent alumina (Al2O3), for a contained 880,000 tonnes of alumina that can be converted to HPA.
- HPA is used throughout multiple industries, and the overall HPA market is projected to grow by a CAGR of 18.4 percent by 2030.
- A pre-feasibility study is currently in progress and scheduled to be completed by Q4 2024. A mining lease application for the Lake Hope High Purity Alumina (HPA) was recently lodged with the aim of being granted by 2026.
- The company’s project portfolio also includes assets with high-grade mineral deposits of a range of base, critical and precious metals.
- Impact Mineral’s 2,000-square-mile Arkun nickel-copper-PGE project in Western Australia has produced encouraging assays that motivate further exploration. Maiden drill programmes are planned for early 2025.
- The company is also exploring its Broken Hill copper project in New South Wales following a major grant under the auspices of the BHP Xplor program in 2023..
- A strong management team leads the company with experience in geology, mining and corporate finance.
Key Projects
Lake Hope HPA Project
Impact Minerals’ Lake Hope HPA project is in Western Australia, a tier-one mining jurisdiction. HPA is a crucial component in many new and emerging technologies, creating ongoing demand for high-grade sources. The Lake Hope project is the company’s flagship as it moves toward production.
Project Highlights:
- Maiden Mineral Resource Estimate: A maiden mineral resource of 3.5 million tonnes at 25.1 percent alumina (Al2O3) for a contained 880,000 tonnes of alumina has been defined at the Lake Hope HPA Project. About 88 percent of the resource, or 775,000 tonnes of alumina, is in the higher confidence indicated resource category.
- Amenable to Open-pit Mining: The Lake Hope project is a unique HPA asset amenable to shallow, open-pit mining. The deposit is soft and shallow, allowing for cheap digging and minimal infrastructure requirements. This type of deposit also lowers the environmental footprint of the operation.
- Fast-tracked to Production: A mining lease application is currently underway. Once granted, the company will begin working towards a pre-feasibility study and mini pilot plant. Impact Minerals plans to reach a complete pilot plant by 2026.
- Impressive Results of the 2023 Scoping Study: Outstanding economics show Lake Hope to potentially be the lowest-cost producer of High Purity Alumina (HPA) globally by up to 50 percent. Key outcomes from the scoping study include:
- Annual production of 10,000 tpa of 4N HPA with an initial 25-year mine life
- Annual EBITDA of A$174 million.
- 2 years construction period with 5,000 tonnes of production during the first year, 8,000 tonnes in the second year and 10,000 tonnes of production thereafter.
- US$934 million post-tax NPV8 at an IRR of 55 percent.
- Mining Lease Application: Amining lease application was lodged in mid-2024 over the West Lake resource while a miscellaneous licence application (L63/99) was lodged to cover mine infrastructure and haulage road.
The scoping study was underpinned by a sulphuric acid process allowing the company to achieve a new milestone by producing HPA with purity of more than than 99.99 percent (4N) from the metallurgical processing of lake clays acquired from Lake Hope. The company further identified a new proprietary metallurgical process for producing HPA from the lake clays. Known as the low-temperature leach (LTL) process, this also produced 99.99 percent (4N) Al2O3 and has the potential to lower even further the capital and operating costs to produce HPA compared to the sulphate process. The LTL process will be included in the ongoing pre-feasibility study along with the sulphate process to determine the best processing route to HPA. The PFS is due to be completed in late 2024.
Broken Hill Copper Project
The Broken Hill project has a significant land position of 815 square kilometers and hosts multiple targets with the potential for high-grade copper. Broken Hill is located in New South Wales, Australia, an area known for its prolific silver-lead-zinc mining operations and the giant Broken Hill deposit.
Project Highlights:
- Participant in the BHP Xplor Program: Impact was selected for the BHP Xplor program in 2023 based on its Broken Hill project. The program is designed to allow participants to accelerate growth and establish a long-term partnership with BHP.
- Potential for Additional Minerals and Deposits: As well as copper, the project has significant exploration potential for magmatic nickel-copper-PGE sulphides, and at the time the host rocks were formed, Broken Hill was located close to the world-class nickel-copper-PGE deposit of Jinchuan and the significant Lengquisheng deposit. The project area also has the potential to contain zinc-lead-silver deposits, providing even more value.
Arkun Nickel-Copper-Gold-Lithium-REE Project
The Arkun project is a 2,900-square-kilometer nickel, copper and gold project located in the emerging Ni-Cu-PGE province near the world-class Julimar Ni-Cu-PGE deposit and surrounded by Anglo American Corporation, which secured its ground holding shortly after Impact secured its asset. Anglo-American is one of the world’s top ten mining companies, and their presence in the region brings confidence in the project’s potential.
Project Highlights:
- Additional Exploration Underway: Impact plans follow-up work programs, including drilling, at its priority targets.
- Significant Targets Identified: Recent soil sampling identified two new prospects:
- Hyperion prospect - Located in the northwestern part of the project area returned with rare earth element anomalism of up to 5,880 ppm (0.59 percent) total rare earth oxide (TREO+Y) and neodymium and praseodymium (Nd+Pr) of up to 21 percent.
- Caligula prospect - Initially identified on the roadside, the Caligula prospect is a large and significant target for porphyry copper mineralisation.
- Three New Exploration Licences: Impact applied for three new exploration licences expanding Arkun project along trend from the recently discovered REE soil geochemistry anomalies at Hyperion, Swordfish and Horseshoe as well as the Caligula copper anomaly.
Management Team
Peter Unsworth - Non-executive Chairman
Peter Unsworth, formerly a chartered accountant, has over 35 years of experience in the corporate finance, investment and securities industries and a wealth of management experience with public and private companies. A former executive director with a leading Western Australian stockbroking company, Unsworth has been a director of several public exploration and mining companies. He recently completed a long time serving as chairman of the Western Australian Government-owned Gold Corporation (operator of The Perth Mint). Unsworth is the founding chairman of Impact Minerals.
Dr. Mike Jones - Managing Director
Dr. Mike Jones is the founding managing director of Impact Minerals Limited, which was listed on the Australian Stock Exchange in November 2006. Reporting to the board of directors, he is responsible for the company's performance as it moves towards production at its Lake Hope High Purity Alumina Project and also for implementing strategies to explore and maximize the value of the company's other extensive tenement holdings.
Since listing, he has helped raise more than $60 million to help fund the exploration of Impact’s projects and managed the company through significant adverse events, including the global financial crisis and the Fukushima nuclear disaster, which affected Impact’s considerable investment in the uranium sector, a five-year global downturn in the mining sector and more recently, the COVID-19 pandemic.
Paul Ingram - Non-executive Director
Paul Ingram is a geologist with extensive experience managing major mineral exploration programs for several publicly listed companies and has been involved in the mining sector for over thirty years. He has designed and implemented innovative techniques for exploration in remote areas and has managed projects in countries throughout Australia and East Asia. Ingram has been a director of the following listed companies in the past three years: Polo Resources from January 2008 to January 2011; A-Cap Resources since June 2009; Consolidated Global Investments since September 2006; Caledon Resources from February 2003 to March 2008; and Australian Pacific Coal since March 2011.
Dr Frank Bierlein - Non-executive Director
Dr. Frank Bierlein is a geologist with 30 years of experience as a consultant, researcher, lecturer and industry professional. Bierlein has held exploration and generative geology management positions with QMSD Mining, Qatar Mining, Afmeco Australia and Areva NC, and consulted for, among others, Newmont Gold, Resolute Mining, Goldfields International, Freeport McMoRan, and the International Atomic Energy Agency. He is currently a non-executive director of PNX Metals. He was previously a non-executive director of Gold Australia NL and chaired the advisory board of a Luxembourg-based private equity fund between 2014 and 2021.
Gold Price 2024 Year-End Review
Read on for more on what factors moved the gold price in Q4, followed by a look back at the entire year.
Gold price in Q4
The gold price began Q4 at US$2,660.30, but quickly saw a retraction to US$2,608.40 on October 9. However, the decline didn't last, and gold again rose, setting a new record high of US$2,785.40 on October 30.
The surge upward was fueled by a weaker-than-expected September US consumer price index report, which showed annual inflation of 2.4 percent and monthly inflation of 0.2 percent. These numbers were higher than analysts' forecasts of 2.3 and 0.1 percent, raising expectations that the Fed would cut rates at its November meeting.
Gold was in retreat to start November, dropping to US$2,664 on November 6 after Trump’s victory. The next day, it briefly surged above the US$2,700 mark as the Fed cut interest rates by 25 basis points on November 7.
By November 15, the price of gold had fallen to its quarterly low of US$2,562.50.
The end of the month saw gold leap to US$2,715.80 on November 22. Following this peak, gold entered December below the US$2,700 mark, closing at US$2,660.50 on December 9.
Gold price, Q4 2024.
Chart via Trading Economics.
Geopolitical impacts have been important to gold in Q4.
In addition to Trump's re-election, which has caused turmoil in various forms, on November 17 the US authorized Ukraine to use ATACMS long-range missiles to attack targets deeper into Russian territory. The UK and France mirrored this move, giving Ukraine the green light to use long-range missiles in the ongoing conflict.
Tensions continued to ratchet up in the days following as Russia announced it was lowering the threshold for nuclear retaliation to include conventional attacks from countries backed by nuclear nations. In a demonstration of its capabilities, Russia launched an intermediate-range ballistic missile for the first time on November 21. While the missile appeared only to carry inert warheads, it is capable of delivering both conventional and nuclear armaments.
The threat of a significant escalation has bolstered gold’s appeal as a safe-haven asset and store of value.
How did gold perform for the rest of the year?
Gold price in Q1
Gold set its first record price of the year at US$2,251.37 on March 31.
Central bank buying, notably China's purchase of 22 metric tons of gold in the first two months of the year, supported the price. Turkey, Kazakhstan and India also significantly increased their holdings at the start of the year.
Further momentum came from Chinese wholesale demand, which jumped to 271 metric tons in January, the strongest ever recorded. Investors were turning to the yellow metal as a defense against falling real estate and stock prices. At that time, the country's stocks had lost nearly US$5 trillion in value over the past three years.
Gold price, Q1 2024.
Chart via Trading Economics.
“As central banks continue to be significant buyers and geopolitical risks and global uncertainties drive investors towards the perceived safety of gold, the current environment underscores gold’s importance as a strategic asset for portfolio diversification and risk mitigation. Therefore, while there may have been a perception of western disinterest in gold, recent developments indicate a sustained and broad-based demand for the precious metal,” Joe Cavatoni, market strategist, Americas, told the Investing News Network (INN) in an email at the time.
Gold price in Q2
The gold price saw increasing momentum in Q2, setting a new all-time of US$2,450.05 on May 20.
Gains through the quarter were influenced by strong central bank demand. Investor sentiment toward the yellow metal also shifted, with outflows from western exchange-traded funds starting to slow.
Although European funds still saw significant declines, it wasn’t all bad news — the US-based SPDR Gold Shares (NYSE:GLD), the Sprott Physical Gold Trust (NYSE:PHYS), Ireland’s Royal Mint Responsibly Sourced Physical Gold ETC (LSE:RMAU) and Switzerland’s UBS ETF Gold (SWX:AUUSI) all saw increases.
Gold price, Q2 2024.
Chart via Trading Economics.
In a May interview with INN, Jeff Clark, editor of Paydirt Prospector, noted several other market dynamics that caused the price of gold to rise dramatically. He said the real starting point for the precious metal's gains was the end of February, when the Fed indicated it was expecting three or four rate cuts in 2024.
“All of a sudden, gold was off to the races. It jumped so high that suddenly, you had some short covering that needed to happen then as well. So you had short covering, which means they’re buying. And then you had momentum chasers and traders jumping all in. That was a pretty good spike ... that's what kind of started all of this,” he said.
Gold price in Q3
Gold set another record price during the third quarter, reaching US$2,672.51 on September 26.
The high came just a week after the conclusion of the Fed's September meeting, when it announced a jumbo 50 basis point cut to the federal funds rate. While the People’s Bank of China maintained its pause on gold purchases in the third quarter, it granted several regional banks new import quotas in August.
Gold price, Q3 2024.
Chart via Trading Economics.
David Barrett, CEO of the UK division of global brokerage firm EBC Financial Group, suggested at the time that Fed rate cuts were less of a factor for gold than central bank buying. “I still see the global central bank buying as the main driver — as it has been over the last 15 years. This demand removes supply from the market. They are the ultimate buy-and-hold participants and have been buying massive amounts,” he told INN via email.
The quarter also saw significant merger and acquisition activity, with South Africa-based Gold Fields (NYSE:GFI,JSE:GFI) announcing plans to acquire Canada’s Osisko Mining (TSX:OSK) for C$2.16 billion, and South African gold miner AngloGold Ashanti (NYSE:AU) agreeing to purchase UK-based Centamin (TSX:CEE,LSE:CEY) for US$2.5 billion.
Investor takeaway
Overall, uncertainty has been a key driver for gold in 2024.
Central banks have continued to increase their physical holdings against an increasingly polarized political landscape. The most recent data from the World Gold Council shows that they added 186 metric tons of gold to their coffers during the third quarter, with the National Bank of Poland leading the way with 42 metric tons.
The World Gold Council notes that on a rolling four-quarter basis, central bank buying has slowed to 909 metric tons — that's compared to 1,215 metric tons one year ago.
Investors also began returning to the precious metal throughout 2024 as geopolitical tensions and fragile economies pushed them toward gold as a safe haven to help shield their portfolios from volatility.
With the world’s largest economy set to welcome Trump back to the White House in 2025, there are many unknowns. His economic policies could cause inflation to begin creeping up. In contrast, his foreign policies could create new ripples through global trade and financial markets given that he campaigned on more protectionist policies.
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Securities Disclosure: I, Dean Belder, hold no direct investment interest in any company mentioned in this article.
Editorial Disclosure: The Investing News Network does not guarantee the accuracy or thoroughness of the information reported in the interviews it conducts. The opinions expressed in these interviews do not reflect the opinions of the Investing News Network and do not constitute investment advice. All readers are encouraged to perform their own due diligence.
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