Tag Archives: renewables

Pacific Energy expands into solar and battery microgrid sector with Hybrid Systems buy

Environmental, Mining mergers and acquisitions, Power supply for mines, , , , , ,

Pacific Energy is looking to strengthen its renewables focus having added solar and battery microgrid specialist Hybrid Systems Australia (Hybrid Systems) to the group.

Taken private in a deal last year involving funds advised by Australian diversified alternatives asset manager QIC, Pacific Energy has previously designed, built, and operated power solutions for miners in remote locations.

The addition of Hybrid Systems will help existing mining customers reduce their carbon footprint, while establishing a foothold for Pacific Energy in the fast-developing market for Stand-alone Power Systems (SPS) and microgrid systems, according to Pacific Energy Chief Executive Officer, Jamie Cullen.

“This transaction delivers a talented and cutting-edge team experienced in the integrated renewables market, where decentralisation, decarbonisation and cost reductions are generating significant new growth opportunities,” he said.

“We gain home-grown, in-house experience in the integration of renewable energy with traditional remote power generation technology. It’s closely adjacent and highly complementary to Pacific Energy’s core business.”

Pacific Energy will maintain the Hybrid Systems brand name and offer support to accelerate growth and capitalise on opportunities in the hybrid power systems market, he added.

Hybrid Systems offering includes the supply of integrated SPS, microgrid and battery energy storage systems ranging from 3 kW for single “fringe of grid” customers up to 10 MW microgrid systems for towns and mine sites.

Sandvik sustainability focus on show at Zimbabwe remanufacture facility

Environmental, Mining equipment, Mining industry recognition, Mining maintenance, Power supply for mines, Sustainable mining, , , , , ,

Solar power is energising Sandvik Mining and Rock Technology’s facility in Zimbabwe, with the mining OEM saving around 400 t/y of carbon dioxide emissions, it says.

The Harare-based operation, which focuses mainly on the remanufacture of Sandvik trucks, loaders, drills and bolters, kicked off its solar power journey in 2017 with an 18-month Phase One project. This included strengthening the roof of the remanufacture facility to accommodate the weight of some 400 solar panels.

Using local contractors and expertise, the project was soon generating 50 kW of power to the facility. In Phase Two, another 50 kW of capacity was added, with the installation now supplying about 75% of requirements. Plans are also in place to provide 100% of demand with another 30-50 kW of capacity.

Among new Sandvik sustainability goals outlined in 2019 across the group is an aim to halve the CO2 foot print from the company’s own production by 2030.

Ian Bagshaw, Territory Manager Zimboz – Southern Africa at Sandvik Mining and Rock Technology, said: “This takes our Harare facility to the next level in terms of technology and sustainability.”

In an unusual design, the system operates with no battery storage, consuming the energy as it is generated. This substantially reduced the cost outlay for the project, enabling a payback period of just nine years, according to Sandvik.

The solar journey has not been limited to the facility’s buildings. Over the past year, it has also been extended to the homes of employees. In a pilot project, standalone domestic solar power systems were designed, tested and installed. The combined impact, so far, amounts to about 35 kW of renewable energy.

“We will provide loans to staff members wanting to install solar power at home, empowering them to further reduce climate impact,” Bagshaw said. “We will roll out this program in 2020 through an offer to all staff, and we expect an enthusiastic uptake.”

He estimates the company’s domestic solar program could soon produce a total of about 300 kW of renewable energy.

Bagshaw said the Harare workshop is fully accredited and works to OEM standards. “This high quality of workmanship allows us to provide full warranties on the machines we strip down and rebuild,” he said.

The facility is also an important training resource for Zimbabwe, developing diesel plant fitters, millwrights and electricians, according to Sandvik. It accommodates about 40 apprentices in training at any one time; currently around 30% of these are women. The facility also provides work-related learning to other companies’ employees in the region and is a government accredited trade testing centre, Sandvik says.

Metso looks to grind down GHG emissions with energy-efficient technology

Comminution of minerals, Environmental, Mineral processing, Mining equipment, Mining industry recognition, Power supply for mines, Sustainable mining, , , , , , , , , ,

Having recently won the approval of the Science Based Targets initiative (SBTi) for its greenhouse gas (GHG) targets, Metso’s Climate Program now has the recognition it deserves.

The GHG goals are applicable to all relevant emission sources: production, procurement, inbound and outbound transportation as well as the use of Metso’s products.

Following on from this environmental win, IM put some questions to Metso’s Director of Sustainable Business Development, Kaisa Jungman, to find out what impact these climate change aims might have on the mining equipment manufacturers’ product offering and how the company is already leading from the front with its environmental sustainability initiatives.

It’s worth acknowledging, first, that these GHG goals are all-encompassing.

As a scope 1 and 2 GHG target, Metso has committed to a 25% reduction in carbon emissions in production by 2030, while 30% of its suppliers – in terms of spend – are required to set science-based emission targets by 2024. Metso also aims for a 20% reduction in transportation emissions by 2025 (scope 3 GHG emissions target) by streamlining transportation routes and optimising warehouse locations.

Through extensive research and development work, Metso says it has been able to significantly reduce the energy consumption in customer processes. To continue this development, the company is aiming for a 10% reduction in GHG emissions in the most “energy-intensive customer processes” using Metso products by 2025.

The company is also demanding energy-efficiency targets in its Metso R&D projects, and offsetting flight emissions by 100% by 2021.

The target to lower GHG emissions by 10% in the most “energy-intensive customer processes” stood out in these targets, and it was hardly surprising to find out grinding falls into this category.

“Grinding is the most energy-intensive stage of minerals processing,” Jungman said. “Overall, it is estimated that comminution counts for 3-5% of the energy consumption in the world and grinding is part of this.”

In the company’s climate program it has included three of its products – the HRC™ high pressure grinding roll, Vertimill® and stirred SMD (stirred media detritor) – to help achieve this 10% cut in GHGs.

“We have estimated, based on our installed base, in 2018, that approximately 1,073,648 t of CO2 emissions were saved through these energy efficient grinding technologies,” she said, explaining that these savings were calculated by comparing its three solutions with conventional technology.

At this stage, it is only the HRC, Vertimill and SMD included in this calculation – due to their substantial energy and emission reduction credentials and the company’s ability to quantify accurately the estimated savings – but Jungman said Metso plans to widen the scope of the technologies to be included.

“In addition to our climate program, we are also looking into other environmental benefits the customers are gaining through our solutions,” she said.

“To improve energy and emissions efficiency in the future, our target is that all our R&D projects will set energy-efficiency targets by 2021.”

She concluded on these technologies: “I would say that this climate program is an important first step and we will continue developing even more comprehensive sustainability targets for our technologies.”

When it comes to displaying evidence of where the company is reducing scope 1 (generated from fuels used in production) and 2 (generated from purchased energy) emissions, Jungman could point to several examples.

“We have installed solar panels in some of our locations already and are looking now for opportunities to install more in several locations in the coming years,” she said.

In some of the company’s facilities, a percentage of the electricity it purchases is already from renewable sources, and Metso is investigating the possibilities of expanding this, Jungman added.

“In addition to electricity consumption, we are also searching for renewable alternatives for the other forms of our energy consumption, including, for example, replacing natural gas consumption with renewable alternatives.”

The company has also, in recent years, invested in many energy efficiency and renewable energy projects, according to Jungman.

“As an example, in our foundry in China, we have invested in a new type of melting furnace to gain better energy efficiency.

“In another production location, we have installed technology to recover process heat from the exhaust air to be used as heating energy. We have also invested in the process automation and insulation of the furnaces to gain better energy efficiency.”

She concluded: “Reducing greenhouse gas emissions is something we take seriously, and to which Metso is fully committed. We want all our stakeholders to be involved in the work to reach these important targets and to aim even higher.”

Strandline, Woodside and EDL to work on ‘world-first’ power project for Coburn

Environmental, Industrial minerals, Mineral project development, Mining services, Power supply for mines, , , , , , , , , , ,

Strandline Resources has selected Woodside and EDL to provide a fully integrated energy solution for its Coburn mineral sands project, in Western Australia.

The parties have signed a non-binding proposal for the development of a 27 MW integrated trucked LNG, storage and power station facility, comprising gas and diesel back-up generators combined with state-of-the-art solar and battery technology, it said.

The Woodside and EDL joint venture (WEJV) was formed to provide clean, reliable and affordable LNG to market, according to Strandline.

“This world-first trucked LNG to hybrid renewable microgrid project will see EDL bring its turnkey expertise to the project’s power station and LNG storage and re-gasification facilities, with LNG supplied from Woodside’s Pluto LNG truck loading facility near Karratha, Western Australia,” Strandline said.

It is expected that contract documentation, in the form of a 15-year power purchase agreement, will be finalised over the coming months in readiness for the commencement of construction, Strandline said.

The WEJV solution provides Strandline with a long-term safe, reliable and highly efficient energy solution for Coburn, according to the developer.

EDL was recently involved in the start up of phase one of a hybrid power project at Gold Fields’ Agnew gold mine, also in Western Australia (pictured).

Coburn, meanwhile, is a mineral sands deposit hosting “exceptional” zircon and titanium mineral sands products, Strandline says. The project benefits from being situated in the well-established mining jurisdiction of Western Australia, close to key road, port and services infrastructure.

The company recently completed a definitive feasibility study on Coburn, which showed the project could generate a pre-tax net present value of A$551 million ($377 million) using a US$:A$ of 0.72, an 8% discount rate, and development capital of A$207 million for the heavy mineral concentrate produce case, with an additional A$50 million required for the final products case (including mineral separation plant infrastructure).

Gold Fields Agnew hybrid power project starts up

Environmental, Mine operation news, Mining services, Power supply for mines, Precious metals, , , , , , , ,

Global distributed energy producer EDL has switched on its 23 MW power station, which integrates photovoltaic solar with gas and diesel generation, to power Gold Fields’ Agnew gold mine, in Western Australia.

This switch-on completes the first stage of one of Australia’s largest hybrid renewable micro-grid projects, according to EDL.

EDL CEO, James Harman, said: “With this project, EDL and Gold Fields are leading the way towards clean, renewable energy to power remote, off-grid mining operations without compromising reliability or power quality.”

Gold Fields Executive Vice President: Australasia, Stuart Mathews, said: “The power station we are officially opening today integrates 4 MW solar generation from our new solar farm and is underpinned by 19 MW of gas and diesel generation. It will soon include other renewable energy technologies coming online in the next stage of the project.”

He referred to the importance of the A$112 million ($76 million) project to both Gold Fields and the broader industry: “This is a significant milestone for both the Agnew gold mine and the broader Gold Fields Group, demonstrating our ongoing commitment to strengthening our energy security, optimising energy costs and reducing our carbon footprint through the adoption of new technologies. We are hopeful that this will also enable other companies to consider the options for decarbonising their operations.”

The second stage of the project, which includes 18 MW wind generation, a 13 MW battery and an advanced micro-grid control system, is currently under construction and due to be completed in mid-2020.

It has the backing of the Australian Renewable Energy Agency with a recoupable A$13.5 million contribution to the construction cost of the project.

Once completed, the Agnew Hybrid Renewable project will be the first to use wind generation as part of a large hybrid micro-grid in the Australian mining sector. It will have a total installed generation capacity of 54 MW, with renewables providing over 50% of the Agnew gold mine’s power requirements, with the potential to increase this further by adopting innovative operational practices such as the dynamic load shedding, renewables forecasting and load control management.

As part of the EDL remit, juwi Renewable Energy, the Australia subsidiary of international project developer juwi, delivered a 4 MW Single Axis Tracking PV installation together with cloud forecasting and an advanced micro-grid control system to enable integration with the mine off-grid network.

BHP builds its ‘green’ copper credentials at Escondida, Spence

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BHP says new renewable energy contracts it has recently signed in Chile will reduce energy prices for its Escondida and Spence copper mines by around 20% and help displace up to 3 Mt/y of CO2 emissions from these operations.

These agreements not only benefit BHP’s business but generate strong environmental and social value, according to Daniel Malchuk, President Operations for BHP’s Minerals Americas business.

BHP operates and own 57.5% of the Escondida mine, a leading producer of copper concentrate and cathodes from a copper porphyry deposit, in the Atacama Desert in northern Chile. Spence, which is 100% owned by BHP, is also in northern Chile.

He said: “Population growth and higher living standards combined with greater electrification are expected to push up demand for copper. This means that copper in products such as electric cars and renewable energy infrastructure, which are vital to the world’s sustainable growth, must be produced to the highest environmental aspirations.”

The new energy contracts, along with BHP’s investment in desalinated water in Chile, demonstrate social value in action and help drive the wider agenda for sustainable green copper, according to Malchuk.

Social value is one strategic pillar the company embeds in all its decision-making and informs the way in which it provides resources and generates long-term, sustainable value. This was the subject of BHP Chief External Affairs Officer, Geoff Healy’s speech in London earlier this month.

Malchuk said the company has negotiated four new power contracts that will meet its energy requirements at Escondida and Spence from 100% renewable energy sources by the mid-2020s.

“When fully operational, these renewable supply arrangements will eliminate virtually all of Escondida and Spence Scope 2 emissions (emissions from purchased energy), effectively displacing up to 3 Mt of CO2 annually compared to the fossil fuel contracts they replace,” he said. “This is the equivalent to annual emissions from about 700,000 combustion engine cars and accounts for around 70% of BHP’s Minerals Americas total greenhouse gas emissions.”

These actions also support Chile’s wider “Energia 2025” power policy target for 20% of all Chilean energy to come from renewable sources by 2025.

Following a competitive tender process, Escondida and Spence agreed separate 15-year contracts for 3 TWh/y and 10-year contracts for 3 TWh/year with ENEL Generación Chile and Colbún respectively. The ENEL contracts will begin in August 2021 and the Colbún contracts in January 2022, BHP said, with power supplied from solar, wind and hydro sources.

Malchuk said: “These contracts are practical examples of our commitment to social value that are linked to a sound business case. We estimate the agreements will reduce energy prices at our Escondida and Spence copper mine operations by around 20%, provide our operations flexibility and security of supply, and strengthen our ability to deliver sustainable copper across our supply chain.”

On top of this, the company has confirmed that its Spence operations will begin using desalinated water as the main source of supply from mid-2020 upon completion of a 1,000 l/s capacity desalination plant. This was part of a plan the company outlined in 2017 to grow the Spence operation.

This is on top of the more than $4 billion, 2,500-l/s desalination plant the company built at Escondida.

Malchuk said: “Water is a precious commodity that is critical to our operations in Chile and to the communities where we operate in the Atacama Desert, one of the driest regions in the world. We recognise our operations have an impact on the environment given the immense amount of water they consume.”

He added: “Our Water Stewardship position statement, launched last month, outlines our vision for a water secure world by 2030. It sets out our actions to improve water management within our operations and contribute to more effective water governance beyond the mine gate.

“We strongly support the UN Sustainable Development Goals on access to clean and affordable water. That’s why we will set public targets and engage industry, communities and governments to improve governance, transparency and collaboration in water management.”

Downer to power up FMG and Alinta’s Chichester Solar Gas Hybrid project

Environmental, Mine operation news, Mining services, Steel and iron ore, Sustainable mining, , , , , , , , ,

Downer is to help turn Fortescue Metals Group’s Chichester Hub iron ore operations into a solar power leader following the award of circa-A$165 million ($113 million) in contracts by Alinta Energy.

These agreements will see the company build Alinta’s 60 MW Chichester solar farm and supporting power infrastructure in the Pilbara region in the north of Western Australia as part of the Chichester Solar Gas Hybrid project, which FMG announced details of last week. It is expected to displace around 100 million litres annually of diesel used in the existing Christmas Creek and Cloudbreak power stations, according to FMG.

The project will see the construction of a new solar photovoltaic generation facility at Chichester Hub iron, as well as a circa-60-km transmission line linking Fortescue’s Christmas Creek and Cloudbreak mining operations with Alinta Energy’s Newman gas-fired power station and 35 MW battery facility.

Work awarded includes the engineering, procurement and construction of the Chichester solar farm, around 60 km of transmission line, two new substations and the upgrade of another, Downer said.

Grant Fenn, CEO of Downer, said the award is another endorsement of Downer’s experience and leadership in delivering renewable energy projects.

“We are looking forward to delivering the project in partnership with Alinta Energy and we are expecting an efficient integration of the solar farm and supporting power infrastructure into Alinta Energy’s existing network in the Pilbara,” Fenn said.

Downer is one of Australia’s largest and most experienced providers in the renewable energy market and power systems sectors, according to the company, delivering services to customers requiring both utility and commercial scale sustainable energy solutions.

The project is expected to be completed in the first half of 2021, Downer said.

thyssenkrupp looks to go ‘climate neutral’ by 2050

Environmental, Metallurgy, Mining equipment, Power supply for mines, Steel and iron ore, Sustainable mining, , , , , , , ,

thyssenkrupp has set some ambitious greenhouse gas emission goals as it looks to fall in line with the 2015 Paris Climate Agreement.

The group aims to cut 30% of its emissions from production and outsourced energy by 2030, and become “climate neutral” by 2050, it said.

thyssenkrupp CEO, Guido Kerkhoff, said: “The threats posed by climate change affect us all. As an industrial company with operations around the globe, we are in a particularly good position to reduce greenhouse gas emissions through sustainable products and processes. We take this responsibility very seriously and have received several awards for this in recent years. Now, we are setting ourselves clear targets for 2030 and 2050 as the next logical step.”

In February, thyssenkrupp was named as a global leader in climate protection for the third year in a row by the non-governmental organisation, CDP, which assesses whether companies have formulated a coherent strategy on how to further improve their own environmental performance as well as that of customers and suppliers. The company, once again, achieved the highest score possible and was placed on CDP’s global ‘A List’, it said.

The targets now announced take in thyssenkrupp’s own production operations, the energy it purchases and its products. In steel production, for example, thyssenkrupp is currently pursuing two approaches to reducing CO2 emissions: The Carbon2Chem project, which is expected to be available on an industrial scale before 2030, and the so-called hydrogen route, which should take full effect by 2050 and make the biggest contribution to directly avoiding CO2. Carbon2Chem converts steel mill emission gases, including the CO2 they contain, into valuable chemicals.

thyssenkrupp’s hydrogen route, meanwhile, involves replacing coal with ‘green’ hydrogen as the reducing agent for blast furnaces so that, in the long term, no CO2 is created in the production of steel. These technologies are being funded by the German federal government and the state of North Rhine-Westphalia.

Under its Climate Action Program for Sustainable Solutions, thyssenkrupp will also systematically work to make its products carbon neutral. The group already offers a technology for the cement industry that permits CO2 emissions from the combustion processes to be captured for subsequent storage or processing. In the area of sustainable mobility, thyssenkrupp is working with European partners to produce fuel from biomass. These fuels reduce CO2 emissions by up to 90% compared with conventional fuels, according to thyssenkrupp.

Other key areas include the e-mobility sector, where thyssenkrupp supplies battery production lines and special steels for electric motors. The group is also actively involved in the development of energy storage solutions, for example with electrolysis systems that convert electricity into hydrogen. These storage systems allow a constant supply of electricity from renewables regardless of the weather, thyssenkrupp says.

Dr Donatus Kaufmann, thyssenkrupp Board member responsible for technology, innovation, sustainability, legal and compliance, said: “Our goals are ambitious but achievable. Our strategy for our steel operations alone will cut production-related emissions there by 80% by 2050. But if we are to achieve our climate targets, we need to make significantly more use of renewable energies. Also, there are no internationally harmonised financial incentives for investments in CO2 abatement technologies. These are basic requirements for making a real change.”

Gold Fields goes for low-carbon energy solution at Agnew gold mine in Australia

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Gold Fields says its Agnew gold mine, in Western Australia, will become one of Australia’s first mining operations to be predominantly powered by renewable and low-carbon energy following a deal with global energy group EDL.

Gold Fields and EDL have agreed on a A$112 million ($78 million) investment in what the gold miner says is a “world-leading energy microgrid combining wind, solar, gas and battery storage”.

The Agnew mine consists of two underground complexes and one processing plant, with a capacity of 1.3 Mt/y consisting of a three-stage crushing circuit, two-stage milling circuit, gravity circuit and carbon-in-pulp circuit.

The microgrid will be owned and operated by EDL, which will recoup its investment via a 10-year electricity supply agreement with Agnew.

The project, which is already under construction, has the backing of the Australian Government with the Australian Renewable Energy Agency (ARENA) contributing a recoupable A$13.5 million to its construction, according to Gold Fields.

The Agnew microgrid is initially forecast to provide 55-60% of the mine’s energy needs, with potential to meet almost all energy requirements at certain times, Gold Fields said. The Agnew microgrid will consist of five wind turbines delivering 18 MW of power, a 10,000-panel solar farm contributing 4 MW, a 13 MW/4 MWh battery energy storage system, and a 16 MW gas engine power station to underpin supply when required.

EDL said stage one consists of a new off-grid 23 MW power station incorporating 16 MW gas and 3 MW diesel generation and 4 MW photovoltaic solar, which is on track for completion in mid-2019. Stage two includes 18 MW wind generation, a 13 MW battery and an advanced micro-grid control system, with construction recently started and due for completion in 2020.

The hybrid microgrid at Agnew follows the announcement of a microgrid at Gold Fields’ Granny Smith mine, featuring 20,000 solar panels and a 2 MW/1 MWh battery system planned for completion in the December quarter.

Gold Fields Australia Executive Vice President, Stuart Mathews, said the Agnew hybrid microgrid project reflects the company’s strategic objective to strengthen energy security, optimise energy costs and reduce its carbon footprint through innovation and the adoption of new technologies.

“The ARENA contribution supports and encourages our efforts. We are making staged investments across our mines in Western Australia to significantly ramp up the innovative use of renewables to meet our dynamic and growing load requirements,” Mathews said.

The funding is part of ARENA’s Advancing Renewables Programme. ARENA CEO, Darren Miller, said the project marks a growing shift in the mining sector’s thinking around powering mine sites.

“The project Gold Fields is undertaking will provide a blueprint for other companies to deploy similar off-grid energy solutions and demonstrate a pathway for commercialisation, helping to decarbonise the mining and resources sector,” Miller said.

Gold Fields says it is embracing innovation and technology across all levels of its mining operations and Mathews said this also extended to its approach to power supply and demand management.

“At Agnew, we will be using instrumentation to detect approaching cloud cover for solar and, potentially in the future, detect changes in wind velocity. Based on this data, the gas power station will have forward-looking systems in place to schedule gas generators in response to forecast changes in the renewable energy supply,” he said.

EDL CEO, James Harman, said the company has seen increasing momentum towards hybrid energy solutions, particularly in remote, off-grid locations. “EDL is pleased to be an active contributor to Australia’s transition to sustainable energy,” Harman said. “Our knowledge and experience from our successful hybrid renewable projects will enable us to provide Agnew with greater than 50% renewable energy over the long term, without compromising power quality or reliability.”

Mathews said: “The configuration of Agnew’s hybrid solution is a first for Gold Fields and is an excellent example of using innovation and technology to improve efficiencies and lower costs. We are fast sharing lessons from this project with our other regions, as part of our global strategic initiatives to improve our security of supply and reduce carbon emissions.”

Gold Fields is the third largest gold producer in Australia. It currently owns and operates three mines in Western Australia and is completing the construction of a fourth, Gruyere, in joint venture with Gold Road Resources.

OZ Minerals to trial hybrid energy solution at Carapateena as part of renewables project

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OZ Minerals says it has launched the Energy and Mining Collaboration (EMC) in an initial collaboration with six other organisations to investigate renewable energy and demand management related activities on a mine site.

The six other organisations are Adelaide University, CSIRO, the Department of Energy and Mining, the Rocky Mountain Institute, SunSHIFT and the Tonsley Innovation Precinct.

The first project as part of this program will be a trial installation of a circa-250 kW hybrid energy solution facility including solar, wind and a battery in the first half of 2020, located at OZ Minerals’ Carrapateena mine site in an area demarcated for piloting and prototyping. Carrapateena, in South Australia, is on track for first concentrate production in the December quarter, after which the project will ramp up to full production over the following 18 months. Carapateena is expected to produce an average of 65,000 t/y of copper and 67,000 oz/y of gold over a 20-year mine life.

The trial installation will have approximately 250 kW hybrid energy solution consisting of solar, wind, battery storage, connected to existing diesel generators, and have a Smart Grid controller for data access and tracking.

The EMC brings these organisations together into a collaboration platform with a view to developing and identifying renewable energy opportunities for an international showcase that optimises electrical and fuel demand and the integration of renewable energy systems, OZ said.

“This will be done via the creation of true partnerships around the testing of energy and technology hypotheses to unlock transformational value in mining,” the company added.

“Over the next six months, the parties, as the founding collaborators, are committed to formalising the partnerships from this collaboration, inviting in other first partnership collaborators and creating a broad and global membership of all those who would like to participate.”