Tag Archives: Prominent Hill

BHP takes next step in smelter, refinery expansion at Copper South Australia

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The South Australian Government has announced the commencement of an application and assessment process for BHP’s planned smelter and refinery expansion at Olympic Dam via a notification in the South Australian Government Gazette.

The notification is a step forward for BHP’s copper growth plans in South Australia and follows an update in the company’s financial year 2024 full-year results last week, which outlined a phased strategy to increase production in South Australia to 500,000 t/y of refined copper cathode by the early 2030s and then potentially up to 650,000 t/y by the mid-2030s – up from circa-322,000 t last financial year.

BHP Asset President Copper South Australia, Anna Wiley, said: “Today’s announcement is an important step for BHP and the South Australian Government as we work together towards our shared ambition to significantly increase copper production in this state.”

“We are already growing BHP’s copper production in South Australia with projects and studies underway at all of our operating sites, and we’re moving at pace to potentially double our current production by the middle of the next decade.”

BHP’s copper province in South Australia comprises the Olympic Dam, Prominent Hill and Carrapateena underground mines, which provide volumes of copper concentrate to a centralised smelter and refinery complex at Olympic Dam that produces refined copper cathode. The company is also progressing the Oak Dam exploration prospect.

BHP, last week, announced an inferred resource at Oak Dam of 1,340 Mt at 0.66% Cu and 0.33 g/t Au, within which is a mineralisation area that contains 220 Mt at 1.96% Cu and 0.68 g/t Au (at a 1% copper cutoff grade).

A final investment decision on phase one of the smelter and refinery expansion is currently scheduled in the first half of financial year 2027.

Byrnecut rolls out first Sandvik battery-powered jumbo in South Australia

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Contract miner Byrnecut has taken the next step on its journey towards expanding its battery-electric equipment fleet with the roll-out of the Sandvik DD422iE development drill with dual controls at the BHP-owned Prominent Hill mine in South Australia.

The drill is the first battery-electric Sandvik development drill in operation in Australia.

Byrnecut took delivery of the battery electric jumbo at Prominent Hill copper mine in December 2023. The machine was put to work alongside Byrnecut’s existing fleet of diesel-powered equipment, including Sandvik development drills, production drills, cable bolters, trucks and loaders. Five months on, drill operators and Byrnecut management alike are impressed by the jumbo’s reliability and its contribution to a cleaner, quieter underground environment, Sandvik reports.

Technical Services Manager at Byrnecut, Dave Taylor, said th Sandvik DD422iE jumbo has “fitted in exactly” as a diesel-powered drill would have, working as it is designed to.

“It’s got all the pros that you would expect, just without all the fumes that come out of the diesel engine,” he added. “We always want to be at the forefront of technology and to look for ways to reduce emissions and diesel particulates – and this is one way of doing that.”

Taylor says the roll-out was simplified, as the Sandvik DD422iE charges by using the same electrical infrastructure used to power the rock drills on the diesel-powered jumbos. “The jumbos we currently have use their diesel engines to tram around but are plugged in and the rock drills run off thousand-volt power via a trailing cable,” he says. “There’s was no additional infrastructure because the DD422iE is charging using what’s already there in the diesel version.”

In a typical scenario, the Sandvik battery-electric jumbo will tram to the work site using electricity stored in its battery. While drilling is underway, the battery is recharged via the patented Sandvik Charging While Drilling technology, allowing the machine to tram away once the drilling cycle is completed.

General Manager for Byrnecut Australia, Craig Barendrecht, says the feedback he has received on the drill is positive despite some initial reservations. “It’s fitted in seamlessly and we’ve had no dramas with operating a battery drill amongst the standard diesel fleet.”

Barendrecht says with Byrnecut planning to increase their battery-electric equipment fleet, the performance of the jumbo is encouraging. “We’ve never previously seen a massive market for the battery jumbo because of the restrictions around tramming distances,” he says. “This is helping to dispel some of those preconceived concerns with how to actually fit an electric jumbo in amongst the traditional diesel fleet.

“This is just an incremental step in getting to that ultimate point where we run a full electric fleet of drills and loaders and trucks.”

Maintenance Superintendent, Mark Noden, says there was an initial learning curve around maintenance requirements for the battery electric rig. However, from an operator perspective it is simple to step from the diesel model to the electric. “I have had no complaints and the support from Sandvik is always good,” he says.

Nathan Cunningham, Business Line Manager for Underground Drills at Sandvik Mining and Rock Solutions, says Byrnecut has consistently demonstrated that it is a forward-thinking mining business, and the purchase of the Sandvik DD422iE reinforces this. “Byrnecut’s trust in the Sandvik product has paid off with the rig operating exactly as it was expected to.”

Thiess’ sustainability drive accelerates in 2023

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With the release of its 2023 sustainability report, Thiess says it has advanced its journey towards sustainable mining, reducing its emissions and diversifying its commodities and services.

Further progress was made towards its 2025 decarbonisation target, reducing Scope 1 emissions by 21% and Scope 2 emissions by 12% during 2023.

These efforts were further enhanced by the group’s diversification of its commodities and services, to rebalance its thermal coal revenue to less than 25% by the end of 2027, which is tracking ahead of schedule. Recognising this, the group has now set an additional diversification target to rebalance its portfolio to consist of less than 20% thermal coal revenue by the end of 2030.

“The group remains committed to supporting a smooth energy transition and will continue to provide sustainable mining services to its thermal coal clients as the use of this commodity continues to support economic growth in many societies,” it said.

These goals have been set alongside the release of Thiess’ 2023 sustainability report, which, itself, reported on several projects helping the decarbonisation cause.

To progress its target of 85% of light vehicles being electric or hybrid by 2030, Thiess began battery electric and hybrid light vehicle trials in Australia, North America and Chile, in 2023, with similar trials expected to begin in Indonesia in 2024.

In Chile, Thiess formalised an agreement to lease two Voltera R6 electric cars, each with a range of 280-300 km, which were delivered to the Llanos copper project in October. This initiative aims to reduce emissions by approximately 7.2 t CO2-e each year. Thiess also partnered with Hualpen, a Chile-based transport company, to trial the use of an electric bus to transport personnel during shift change from the city of Calama to the Llanos copper project, in Minera Centinela, approximately 100 km away. The use of the electric bus results in an estimated emissions saving of approximately 140 kg CO2-e per trip, which Hualpen estimates will result in a total emissions saving of approximately 15 t CO2-e per year.

In the US, Thiess investigated the application of an electric 4×4 light vehicle in the challenging weather conditions at its molybdenum site. The site is around 3.5 km above sea level with temperatures often dropping to -20°C. The chosen engineered solution uses a Hypercraft electric drive system to convert a heavy-duty designed Ford F-250 Super Duty 4×4 (pictured). This fully-electric solution provides a range of 160-225 km and was deployed in December 2023.

At the Mt Pleasant operation in New South Wales, Australia, Thiess has introduced two electric vehicles (EVs) – a Polestar 2 and Kia EV6 – and a hybrid Mitsubishi Outlander, as pool cars. The vehicles provide personnel with an opportunity to trial the experience of driving an EV to encourage wider adoption. Two ABB 22 kW electric chargers were installed to support the trial with a third installed for use by employees and visitors who drive EVs to site.

Outside of light vehicles, Thiess, through MACA, welcomed the first Liebherr R 9300 250-t excavator in Australia into its growing fleet at the Karlawinda gold project in Western Australia. Commissioned in August 2023, the R 9300 uses innovative technology to provide improved performance and better fuel efficiency, Thiess says. Thiess also introduced Komatsu 930E-5 electric drive trucks, with tier 4 engine technology, at two Australian projects to enhance operational efficiency. The trucks are expected to deliver a 5% reduction in fuel consumption compared to other trucks in their class, it says.

In 2023, the MACA team at the Okvau gold project in Cambodia worked with its supplier to reduce the compressor power of all drill rigs to 90% to improve efficiency and reduce fuel consumption and emissions. Since the implementation of the initiative in June 2023, fuel consumption across all six Epiroc drill rigs has been reduced by an average of 20%. This equates to an annual saving of approximately 165,000 litres of fuel and 570 kg of CO2-e emissions. Thiess said: “MACA intends to continue with the reduced compressor power as there has been no adverse effects since the initiative was implemented. Drill performance in normal conditions has been unaffected and no maintenance issues have been reported.”

Building on the success of the initiative, the aim is to extend the modifications to remaining drill rigs of the same model within its fleet.

Also during 2023, Thiess completed a study to determine the optimum horse power (HP) setting for the Cat 794AC trucks at a Queensland project based on application, production capability and fuel burn. The study allowed Thiess to identify the most appropriate setting, considering tonnes moved and fuel consumed, and calculate component life targets based on each setting. The trial resulted in fuel savings of 15.79% across a fleet of seven 794ACs by reducing the HP setting from 3,500 HP to 3,100 HP. According to internal calculations this equated to a saving of A$1.68 million ($1.11 million) per year in fuel, $180,000 in life extension and an annual reduction in emissions of 3,790 t CO2-e.

The site team concluded there was no reduction in asset performance, however the trial indicated a reduction in truck productivity of 4.72%. Although this is a bespoke situation, Thiess says it will look to identify similar cases at other sites where the trial findings may be utilised.

In September 2023, Thiess launched the Thiess Remote Operation Centre (TROC) In Jakarta, Indonesia. Using leading technology, TROC supports fleet management at the Wahana mine over 1,000 km away. This remote technology can help to improve efficiency and productivity of the mining fleet, Thiess says.

Thiess will look to implement the technology at its MSJ mine next, allowing TROC to support additional mines as Thiess continues on its digitisation journey.

Thiess also completed a hydrogen trickle feed trial on 40% of its haul fleet at the Prominent Hill operation in South Australia, in 2023 (now owned by BHP). Findings have been leveraged with the aim to initiate a second trial at a New South Wales project in 2024.

In 2024, Thiess plans to begin trials of hybrid excavators in Indonesia and battery-powered light/medium trucks in Australia, continue dual fuel trials and MACA’s pursuit of fleet retrofit solutions in Australia, complete an additional hydrogen trickle feed technology trial and investigate more fuel-efficient options for its asset rebuilds, it says.

BHP eyes South Australian copper basin consolidation with latest OZ Minerals offer

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BHP has submitted a revised non-binding indicative proposal to the Board of OZ Minerals Limited (OZL) that, subject to a successful four-week due dilligence period, could see the major miner acquire the mid-tier base metal-focused miner.

The offer to acquire 100% of OZ Minerals by way of a scheme of arrangement for a cash price of A$28.25/share ($18.9/share) is a 13% increase on the offer BHP previously put forwad and was rejected by the OZ Minerals Board. It, according to BHP, represents the best and final price the mining major is willing to offer under, in the absence of a competing proposal.

The OZ Minerals Board has confirmed to BHP that it intends to unanimously recommend the revised proposal to OZ Minerals shareholders as being in their best interests in the absence of a superior proposal, subject to the parties entering into a binding scheme implementation agreement (SIA) following completion of BHP’s confirmatory due diligence and an independent expert concluding that the revised proposal is in the best interests of OZ Minerals shareholders, it said.

The proposed transaction, valuing OZ Minerals at an enterprise value of A$9.6 billion, is expected to deliver significant value creation for both BHP and OZ Minerals shareholders, BHP says, explaining that OZ Minerals shareholders would receive an offer price significantly above trading levels and average broker price targets, prior to BHP’s initial proposal on August 5, 2022. At the same time, BHP shareholders would gain increased exposure to future-facing commodities, adding copper and nickel resources that are essential to support the global megatrends of decarbonisation and electrification.

The deal would also create a South Australian copper basin, which, according to BHP, could unlock potential operational synergies due to the proximity of OZ Minerals’ Carrapateena and Prominent Hill operations with BHP’s existing Olympic Dam asset (pictured) and Oak Dam development resource.

The West Musgrave project, meanwhile, will add a large greenfield nickel option to BHP’s Nickel West premier nickel sulphide resource position in Western Australia.

BHP has now entered into a Confidentiality and Exclusivity Deed with OZ Minerals in relation to the revised proposal. This has seen OZ Minerals grant BHP four weeks to undertake exclusive confirmatory due diligence and negotiate a binding SIA reflecting the key terms of the revised proposal. The four-week period is expected to commence on or around November 21, 2022.

BHP CEO, Mike Henry, said: “BHP’s proposal represents a highly compelling offer for OZ Minerals shareholders, providing certainty at a time of macroeconomic uncertainty and market volatility, and increasing risks for the industry.

“The combination of BHP and OZ Minerals’ assets, skills and technical expertise provides a unique opportunity not available under separate ownership, with complementary resources including the Oak Dam exploration prospect and existing facilities within close proximity, backed by BHP’s strong balance sheet, capital discipline and commitment to sustainable development.”

OZ Minerals Managing Director and Chief Executive Officer, Andrew Cole, said: “BHP’s revised proposal is a clear reflection of OZ Minerals’ unique set of highly strategic, quality assets in quality jurisdictions and an enviable multi-generational growth pipeline of copper and nickel
assets in strong demand due to global electrification. We look forward to working with BHP in a collaborative way to progress the revised proposal in the best interests of OZ Minerals’ and its stakeholders.”

Byrnecut to use six Sandvik 18-t-payload BEVs at OZ Minerals mines

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Leading Australia-based contract miner Byrnecut is embracing the many benefits of battery-electric vehicles (BEVs) by purchasing six Sandvik battery-powered loaders with AutoMine® for use at OZ Minerals’ operations in South Australia.

Under a deal with Sandvik Mining and Rock Solutions, Byrnecut will take delivery of the LHDs in 2023 and 2024 for use at the Prominent Hill copper, gold and silver mine, south-west of Coober Pedy, and the Carrapateena copper and gold mine, north of Port Augusta. Byrnecut has been engaged by OZ Minerals to provide underground mining services at the mines and currently has a fleet of Sandvik LH621i loaders equipped with autonomous solutions operating on both sites.

“We’re excited to be leading the way with battery-electric vehicles in Australia by putting these six Sandvik loaders into service over the next two years,” Max Woods, Asset Manager for Byrnecut, said. “Not only will the use of electric vehicles significantly improve the working environment underground, but it will also help our customers to work toward their emissions reduction goals – something that is increasingly important in the mining sector.”

Woods says the purchase of the electric loaders is part of Byrnecut’s commitment to explore and embrace new technologies that make its operations safer, more efficient and more sustainable.

“Eliminating emissions from loaders from the underground environment helps us create a better workplace, as does AutoMine technology that enables operators to work from comfortable remote control rooms,” he said.

Another major benefit to Byrnecut is the anticipated increased performance the new loaders could provide, Sandvik says.

The company worked closely with Sandvik prior to purchase to model various application scenarios, including both manual and automated operation.

“We’re expecting the loaders to provide greater throughput in both manual and automated modes while delivering a similar total cost of ownership per tonne delivered to their predecessors,” Woods says.

The new Sandvik loaders are also expected to bring major cost savings across their entire lifecycles, according to Woods. They are likely to require fewer replacement parts than their predecessors, and servicing is also more efficient and simpler.

Sandvik 18-t battery loaders are the most compact on the market, according to the OEM. The powerful electric motors, innovative electric driveline and the smaller tyres on the rear compared with the front, result in a small machine size, high payload with good visibility and unmatched speeds.

Battery machines produce no underground exhaust emissions and significantly less heat than traditional diesel engines, supporting the mines to reach sustainability targets, through reduced CO2 emissions.

Andrew Dawson, Business Line Manager for Load & Haul at Sandvik, praised Byrnecut for helping to pioneer the use of BEVs in Australia.

“The first Sandvik battery-electric loaders only began arriving in the country about a year ago, and the interest has been extremely strong,” he says. “We’re very pleased that Byrnecut and Oz Minerals see the benefits of this technology and is demonstrating it to the rest of the industry. We have always had an excellent working relationship with Byrnecut and look forward to cooperating with them throughout the roll-out and beyond.”

OZ Minerals turns down BHP’s A$25/share cash offer

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OZ Minerals says it has rejected an unsolicited, conditional and non-binding indicative proposal from BHP to acquire all shares in the company for A$25/share ($17.3/share) in cash, valuing the company at an reported A$8.34 billion.

Having assessed this proposal, which represents a 13.1% premium to the volume weighted average price (VWAP) of OZ’s share price for the six months prior, the Board has unanimously determined that the offer significantly undervalues OZ Minerals and, as such, is not in the best interests of shareholders.

For its part, BHP points out in a separate press release that the consideration represents an “attractive premium” of 32.1% to OZ Minerals’ closing price of A$18.92/share on August 5 and 41.4% to OZ Minerals’ 30-day VWAP of A$17.67/share up to and including August 5.

OZ Minerals says the proposal is subject to a number of conditions including:

  • The completion of extensive financial, legal, technical and operational due diligence over a proposed six-week timeframe;
  • Various financial assumptions;
  • A unanimous recommendation of the OZ Minerals Board; and
  • Entry into a scheme implementation agreement subject to a range of conditions including no material adverse change, regulatory, shareholder and court approvals and conduct of business restrictions.

OZ Minerals says the Board has been advised by BHP that it has accumulated an interest in OZ Minerals shares via derivative instruments amounting to an interest of less than 5%.

OZ Minerals Managing Director and Chief Executive Officer, Andrew Cole, said: “We have a unique set of copper and nickel assets, all with strong long-term growth potential in quality locations. We are mining minerals that are in strong demand particularly for the global electrification and decarbonisation thematic and we have a long-life resource and reserve base. We do not consider the proposal from BHP sufficiently recognises these attributes.”

In coming to its decision, OZ Minerals says the Board considered that the proposal does not adequately compensate shareholders for:

  • The unique nature of OZ Minerals’ core business which represents a high-quality portfolio of copper and nickel assets, located in a Tier-1 mining jurisdiction with long mine lives, first quartile cost positioning and extensive strategic optionality;
  • The unique investment proposition which OZ Minerals provides as the only primary copper company in the ASX 100;
  • The low carbon intensity of OZ Minerals’ assets relative to its peers with a defined and market- leading plan for further decarbonisation to meet our target of net zero Scope 1 and 2 operational emissions by 2030;
  • The high-quality nature of OZ Minerals’ growth projects which include the West Musgrave project (final investment decision scheduled for H2 2022), the Carrapateena Block Cave and the Prominent Hill Extension which together are expected to generate significant production growth over the next five years;
  • The strong long-term outlook for both the copper and nickel markets underpinned by increasing geological scarcity, global electrification and accelerating decarbonisation, to which OZ Minerals is highly leveraged; and
  • The strong and consistent returns that the OZ Minerals management team has delivered with a total shareholder return of circa-145% over the past five years.

In addition to the above, OZ Minerals would deliver significant synergies and other benefits to BHP which the Board considers are not reflected in the value of BHP’s indicative proposal.

Among there are the operational synergies in both South Australia (between Olympic Dam, Carrapateena and Prominent Hill) and in Western Australia (between Nickel West and West Musgrave).

BHP says the cash offer it has made would deliver immediate value to OZ Minerals shareholders and de-risk any value which may (or may not) eventually be reflected in the company’s share price.

BHP CEO, Mike Henry, said: “Our proposal represents compelling value and certainty for OZ Minerals shareholders in the face of a deteriorating external environment and increased OZ Minerals operational- and growth-related funding challenges.

“We are disappointed that the Board of OZ Minerals has indicated that it is not willing to entertain our compelling offer or provide us with access to due diligence in relation to our proposal.”

OZ Minerals Prominent Hill joins Aqura 5G Underground Initiative

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Aqura says its 5G Underground Initiative in Australia is progressing to plan, with the company having recently added OZ Minerals’ Prominent Hill mine to the project, joining representatives from one of Northern Star Resources’ operations in the project.

Aqura, recently acquired by Telstra Purple, was awarded a grant back in 2021 from the Australian Government under the 5G Innovation Initiative to augment the organisation’s own development work to address the challenge of delivering underground 5G LTE. This development work included technical architectures, commercial model development and installation of a live Private 5G LTE network in an operating mine.

The 5G Underground Initiative leverages learnings from a 2017 project where Aqura successfully delivered Private 4G LTE in an underground mine in the Kalgoorlie region of Western Australia.

Aqura says it has onboarded Northern Star and OZ Minerals by providing a detailed design for both of its chosen mines.

“Having two different mines involved in the project will greatly extend the diversity of the technology architectures developed to suit more mine operation types,” it noted.

Site visits to validate terrain and existing infrastructure are currently in progress. Equipment acquisition is also underway, with works expected to commence at both sites in August 2022, Aqura said.

ABB to deliver highest payload Koepe production hoist to OZ Minerals’ Prominent Hill

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ABB says it has won a large order for its highest payload Koepe production hoist, associated infrastructure and safety systems from Australia-based mining company OZ Minerals.

The contract will help to ensure efficient processing performance and a long service life as part of an ongoing $400 million expansion at the Prominent Hill mine in South Australia.

The hoist, which will be designed and supplied by ABB, has a capacity of 39,400 kg and the strongest drivetrain that ABB has ever installed in Australia. ABB specialists will also supervise installation and commissioning.

OZ Minerals’ gold, silver and copper mine began operations in 2009 as an open-pit mine, but it is now an underground mine producing 4.5 Mt/y, moving to between 4.5 Mt/t and 5 Mt/y from 2022 via a trucking operation. The hoisting shaft provides access to mineral resources outside the current trucking mine plan that would have been uneconomical via a trucking operation from around 2033, ABB said.

Installing the Wira shaft will increase the annual underground mining rate, extend the mine life, reduce operating costs, lower emissions intensity, and reduce overall operational risk, according to OZ Minerals.

ABB has been awarded the last four mine hoists installed in Australia.

“The project is important for the country’s mining industry and metals security,” Stuart Cowie, Head of Process Industries, ABB Australia, said. “The local supply chain and workforce also relies on the mine and at ABB we’re enabling it to continue for several more years with increased safety, higher production rates and lower emissions.”

Once operational, the installation at Prominent Hill will have ABB Ability™ Safety Plus for hoists, a suite of mine hoist safety products that brings the highest level of personnel and equipment safety available to the mining industry, the company said. It is the first fully SIL 3 (Safety Integrity Level) certified suite of solutions for hoists, rigorously examined and certified by an independent global functional safety certifying body, and strictly developed in accordance with the International “Safety of Machinery” standard IEC62061, the company said.

The products include Safety Plus Hoist Monitor (SPHM), Safety Plus Hoist Protector (SPHP) and Safety Plus Brake System (SPBS) including Safety Brake Hydraulics (SBH).

Polymathian, SimGenics, Simulation Engineering Technologies, MathWorks, First Mode to tackle electric mine simulation tasks

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Five teams have been selected to join the Think & Act Differently (TAD) ideas incubator, powered by OZ Minerals and Unearthed, tasked with developing and testing an open architecture simulation platform to develop electric mine designs, with the goal to achieve zero scope one emissions.

Last September, the Electric Mine Consortium launched the Electric Mine Simulation crowd challenge in partnership with the (TAD) ideas incubator, noting that electrification of mine sites remained a critical step change needed for the mining industry to achieve a zero-carbon future.

“Switching to electrified solutions and renewable energy represents a transformational shift that will change the way mines are designed,” OZ Minerals said. “This challenge is about using simulation to understand the impacts of electrification on mine design, infrastructure and energy management.”

The crowd challenge closed in November last year and attracted 179 participants from 36 countries, resulting in 23 submissions. Five teams have now been selected to join the TAD incubator where they will be supported to develop and test their simulations.

Finalist teams include:

  • Polymathian – Colin Eustace, Michael Dallimore, Steven Donaldson and Mitchel Grice are experts in solving complex planning and scheduling problems for the industry, OZ Minerals said. Their solution is to provide a widely used scalable simulation model platform to model large and complex operations, from mining and processing to full supply chain operations;
  • SimGenics – Abrie Venter and Kobus Viljoen are using a software platform that can integrate continuous and discrete-event simulation tools from multiple vendors into one solution;
  • Simulation Engineering Technologies – Jaco Botha, Henk Jenkinson, Fredrik Sundqvist and Marco Agas are the team behind a mine simulator (SimMine®) that allows for the construction of a complete mine simulation, including development, production and ore handling systems;
  • MathWorks – Wilco Volwerk, Peter Brady, Ruth-Anne Marchant and Sam Oliver are using a mathematical computing software that can be used to model dynamic, discrete and continuous processes with multiple time scales to create a mine simulation framework; and
  • First Mode – Aidan Morgan, Jan Haak and Clara Sekowski represent a creative engineering company, using modelling and simulation to inform design decisions and optimise the use of technology.

The teams will work together to explore and develop concepts for the development of an open architecture simulation platform to develop electric mine designs, with the goal to achieve zero scope one emissions. A use case for testing the value of simulation will be provided by OZ Minerals’ copper-gold mine, Prominent Hill, with further use cases developed in collaboration with the Electric Mine Consortium member companies.

The TAD Incubator program is a supportive environment that includes funding, technical mentoring, opportunities for collaboration, capability uplift and access to mining data and mining operations, OZ Minerals said. The teams will be supported by mining business improvement specialists from Imvelo, Sharna Glover and Alan Bye and Simulation SME Luigi Barone, an internationally recognised expert in artificial intelligence.

Brett Triffett, OZ Minerals’ Transformation Technologist, said: “This challenge will help us learn about the power of simulation together with some really talented and collaborative people, as we accelerate progress towards a fully electrified zero carbon zero particulate mine. The benefit of crowdsourcing, particularly in an area where ideas may come from outside our traditional mining networks, is that we can scour the globe to find start-ups, academics and individuals that we would not have otherwise had encountered.”

Multiple mining companies from the EMC will be able to collaborate on the outcomes of this experiment and we’re excited to see what we can learn about the process as well as the technology. The teams will work together over a three-month period to develop simulation concepts.

OZ Minerals, IGO South 32, Blackstone Minerals, Evolution Mining, Barminco and Gold Fields have committed to significantly reducing their carbon footprint. These seven mining companies, along with a number of partner companies, have come together to form the Electric Mine Consortium, a collaborative group seeking to accelerate progress towards a fully electrified zero carbon and zero particulate mine.

The TAD incubator is powered by OZ Minerals and is focused on themes that prioritise social and environmental responsibility for the future of mining.

Howden to supply complete mine cooling system for OZ Minerals’ Prominent Hill mine

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Howden says it has won a contract to supply a cooling system for the expansion of OZ Minerals’ Prominent Hill mine in South Australia.

The solution provided by Howden will be for the complete mine cooling system, with Howden’s equipment ensuring safe productive outcomes at depth and additional efficiencies to reduce environmental impact for current and future carbon footprint compliance.

Howden will focus on sustainability and the solution will include closed circuitry on both condenser and evaporator circuits and R717 (Ammonia) compressors which emit no harmful CO2 or HFCs, the company said. The system consumes no water, using the ambient air as the cooling medium and Howden will supply chillers, air cooled condensers, bulk air coolers, pumps, electronic controls and hydraulic design.

Camille Levy, President of Howden APAC, said: “Howden works in partnership with customers to create solutions for their needs which are of the highest functionality, while supporting their net zero targets. This project is no exception. Our unique combination of manufacturing excellence, technical and project deliverables, and our global experience, also contributes to the reduction of carbon impact of operations.”

The use of Howden refrigeration screw compressor technology coupled with supplies of condenser coolers and bulk air coolers were other supporting factors in the successful offer which will be delivered by the Howden team in China, the company said.

The OZ Minerals Board approved construction of a hoisting shaft at the Prominent Hill copper-gold mine in South Australia last year, paving the way for a mine life extension and throughput expansion.