Tag Archives: Unki

Anglo American Platinum’s modernisation drive to continue into 2021

Anglo American Platinum says it is looking to deliver the next phase of value to its stakeholders after reporting record EBITDA for 2020 in the face of COVID-19-related disruption.

The miner, majority-owned by Anglo American, saw production drop 14% year-on-year in 2020 to 3.8 Moz (on a 100% basis) due to COVID-related stoppages. Despite this, a higher basket price for its platinum group metals saw EBITDA jump 39% to R41.6 billion ($2.8 billion) for the year.

As all its mines are now back to their full operating rates, the company was confident enough to state PGM metal in concentrate production should rise to 4.2-4.6 Moz in 2021.

Part of its pledge to deliver more value to stakeholders was related to turning 100% of its operations into fully modernised and mechanised mines by 2030. At the end of 2020, the company said 88% of its mines could be classified as fully modernised and mechanised.

There were some operational bright spots during 2020 the company flagged.

At Mogalakwena – very much the company’s flagship operation – Anglo Platinum said the South Africa mine continued its journey to deliver best-in-class performance through its P101 program.

Rope-shovel performance improved to 26 Mt in 2020, from 15 Mt in 2019, while drill penetration rates for big rigs increased from 15 m/h, to 16.7 m/h. Alongside this, the company said its Komatsu 930E truck fleet performance improved to 298 t/load in 2020, from 292 t/load in 2019.

These were contributing factors to concentrator recoveries increasing by two percentage points in 2020 over 2019.

During the next few years, the company has big plans to further improve Mogalakwena’s performance.

In 2020, the mine invested R500 million in operating and capital expenditure, which included commissioning a full-scale bulk ore sorting plant, coarse particle rejection project and development of the hydrogen-powered fuel-cell mining haul-truck (otherwise referred to as the FCEV haul truck).

First motion of the 291 t FCEV haul truck is still on track for the second half of 2021, with the company planning to roll out circa-40 such trucks from 2024.

Anglo Platinum said the bulk sorting plant (which includes a Prompt Gamma Neutron Activation Analysis and XRF sensor-based setup, pictured) campaign at the Mogalakwena operation is due to end this quarter.

The company’s hydraulic dry stacking project is only just getting started.

This project, which involves coarse gangue rejection before primary flotation for safer tailings storage facilities, is expected to see a construction start in the June quarter, followed by a campaign commencement and conclusion in the September quarter and December quarters, respectively.

On another of Anglo Platinum’s big technology breakthrough projects – coarse particle rejection for post primary milling rejection of coarse gangue before primary flotation – the company plans to start a campaign in the December quarter of this year and conclude said campaign by the end of the March quarter of 2022.

The company also has eyes on making progress underground at Mogalakwena, with a hard-rock cutting project to “increase stoping productivity and safety” set for Phase A early access works this year. This project is set to involve swarm robotics for autonomous, 24/7 self-learning underground mining, the company said.

Lastly, the company’s said the digital operational planning part of its VOXEL digital platform had gone live at Mogalakwena. VOXEL is expected to eventually connect assets, processes, and people in a new digital thread across the value chain to create a family of digital twins of the entire mining environment, the company says. Development is currently ongoing.

Looking back to 2020 performance at the Unki mine, in Zimbabwe, Anglo reflected on some more technology initiatives related to R26 million of expenditure for a digitalisation program. This included installing underground Wi-Fi infrastructure, as well as a fleet data management system to track analytics on primary production equipment. The company says these digital developments will enhance real-time data analysis, improve short-interval control and overall equipment effectiveness.

To step up mechanisation of its PGM operations at Amandelbult, Anglo American Platinum is also investing in innovation.

This includes in-stope safety technologies such as split panel layouts to allow buffer times between cycles, creating safer continuous operation and reduced employee exposure; improved roof support technology and new drilling technologies; a shift to emulsion blasting from throw blasting; and safety enhancements through fall of ground indicators, 2 t safety nets, LED lights, and winch proximity detection.

Meanwhile, at the company’s Mototolo/Der Brochen operations, it is working on developing the first lined tailings storage facility at Mareesburg in South Africa to ensure zero contamination of ground water. The three-phase approach adopted for construction of this facility will be completed this year.

DRA Global to help debottleneck Anglo American Platinum’s Unki PGM concentrator

DRA Global says it has been awarded an engineering procurement and construction management contract to expand Anglo American Platinum’s Unki platinum group metals concentrator, in Zimbabwe.

The engineering company was previously enlisted to carry out a feasibility study on the expansion, referred to as the “debottlenecking” project by Anglo American Platinum, and will now help increase throughput capacity to 210,000 t/mth, it said.

The Unki concentrator, built in 2010, can currently treat up to 180,000 t/mth according to Anglo American Platinum. It processes material from the Unki mine, one the world’s largest PGM deposits outside of South Africa, the miner says.

Anglo American Platinum, in its 2019 results released earlier this year, said it had signed off on the R700 million ($39 million) debottlenecking project and expected commissioning to be completed in the September quarter of 2021.

Unki has steadily been ramping up production in recent years. In 2019, it produced a record 202,000 oz of platinum group metals, up from 193,000 oz in 2018 and 166,000 oz in 2017.

Anglo takes on responsible mining standards at Unki platinum mine

Anglo American says its Unki platinum mine in Zimbabwe has become the first operation to publicly commit to be independently audited against the Initiative for Responsible Mining Assurance’s (IRMA) ‘Standard for Responsible Mining’.

IRMA’s Standard for Responsible Mining has been developed over 10 years through a public consultation process with more than 100 different individuals and organisations, including mining companies, customers and the ultimate downstream users of mined products, non-governmental organisations, labour unions, and communities.

An initial self-assessment was completed by Unki ahead of the independent on-site audit and, according to Anglo, the operation performed well against the 26 areas covered by the Standard for Responsible Mining, including working conditions, human rights, community and stakeholder engagement, environmental impact, and planning and financing reclamation and closure.

Mark Cutifani, Chief Executive of Anglo American, said the company had a longstanding commitment as a leader in responsible mining, with numerous examples of its progressive business decisions across many decades. “We are pleased that Unki will be the first mine in the world to publicly commit to a third-party audit to determine its performance against IRMA’s Standard for Responsible Mining,” he said. “As our customers and end consumers who rely on our metals and minerals rightly expect the highest standards of ethical production, we will be putting all our managed mines through such rigorous certification processes by 2025.”

Aimee Boulanger, Executive Director of IRMA, said while IRMA is a voluntary certification system meant to complement strong laws and government oversight, it is also the world’s first and only global definition of what constitutes leading practices in social and environmental responsibility for large-scale mining operations developed through consultation with a range of stakeholders.

“It is the product of 10 years of collaboration between our stakeholders that seeks to emulate for mining what has been done with certification programs in fairtrade agriculture, responsible forestry and sustainable fisheries, as examples,” she said.

“We are extremely pleased to see Anglo American’s Unki mine take the lead and begin the third-party certification process. We hope that this paves the way for others across the industry to make a similar commitment.”

Chris Griffith, CEO of Anglo American Platinum, said the IRMA self-assessment tool had provided the business with a valuable opportunity to measure the performance at Unki mine against international best practice on a wide range of environmental and societal factors. “We are immensely proud of the work the team has been doing at Unki on responsible and sustainable mining, and we look forward to continue leading the way for our other mining operations.”

Unki is the first of many Anglo American operations to be measured against the IRMA standard, in line with the commitment in our Sustainable Mining Plan to have all of our operations assessed against credible responsible mining standards by 2025.

Other Anglo American operations currently completing the IRMA self-assessment stage include the Barro Alto nickel operation in Brazil and the Amandelbult PGM operation in South Africa.

Unki has not yet been independently assessed against the standard nor achieved a level of recognition at the time of this announcement, Anglo said.