Tag Archives: Roxgold

Perenti banks ~A$420M of contract works with Gold Fields, AngloGold and Roxgold

Perenti Limited’s underground mining businesses have been awarded contract extensions valued at circa-A$420 million ($276 million), in three separate projects across Australia and Africa, the company says.

The contract extensions include:

  • A 12-month, circa A$125 million contract extension to continue underground development and production works at the Gold Fields Agnew underground gold mine in Autsralia;
  • A 12-month, circa-A$180 million contract extension at AngloGold Ashanti plc’s Obuasi underground gold mine in Ghana; and
  • A two-year, circa-A$115 million contract extension of existing underground development and production works at the Roxgold Inc Yaramoko underground gold mine in Burkina Faso.

Mark Norwell, Managing Director & Chief Executive Officer of Perenti said: “We pride ourselves on our enduring relationships, so we are especially pleased to be continuing our relationship with these long-term clients. Our Contract Mining division is now led by Gabrielle Iwanow and will continue to focus on safely delivering for our clients and on our strategic objectives. I look forward to providing an update on the business, including the excellent progress we have made on the integration of DDH1, as part of our 1H23 results which will be released to the market in February.”

Gabrielle Iwanow, President Contract Mining, said: “In my first few weeks at Perenti, I have been very impressed with the team’s technical capability and the operational performance that they deliver to our clients. I believe that it is these factors that underpin the strength and depth of our relationships.

“With these contract awards combined with those previously announced, namely circa-A$360 million related to the Sandfire Resources A4 project in Botswana and a further A$111 million related to three Australian surface and underground contract awards, the team has secured nearly A$900 million of revenue for the business. I am very proud to be leading and supporting the Contract Mining team as we collectively work towards delivering our 2025 strategic objectives.”

Appian continues to flex ‘multi-faceted’ skillset in latest mining deals

Private equity firms might not be the most obvious port of call for companies in need of the technical skillsets to transition ‘projects’ to ‘mines’, but, in recent years, Appian Capital Advisory LLP has shown the industry that it has all the credentials to help with this transition.

The firm, headquartered in London but calling on expertise from across the globe, has just completed divestments of the Santa Rita nickel mine and the Serrote copper mine, both in Brazil.

Sibanye-Stillwater, the purchaser, agreed to pay Appian $1 billion, plus a 5% net smelter return (NSR) royalty over potential future underground production at Santa Rita, for the assets, with the private equity firm, in the process, pocketing a pretty profit.

In 2018, Appian acquired Atlantic Nickel (owner of Santa Rita) out of bankruptcy for $68 million and Mineração Vale Verde, the owner of Serrote, for $40 million.

It reoriented the former large-scale open-pit mine into a much more conservative – and profitable – mine able to produce around 20,000-25,000 t/y of contained nickel sulphide equivalent. It also carried out extensive drilling to showcase its underground potential, prolonging its mine life.

The plans at Serrote, meanwhile, were re-evaluated in a DFS. Having completed project construction and commissioning ahead of schedule and under budget, the mine is now ramping up to nameplate capacity of 20,000 t/y of copper equivalent.

These two divestments represent the fourth and fifth portfolio sales the company completed this year. The others included the sale of its 13.2% interest in West Africa-focused gold company Roxgold to Fortuna Silver Mines, the sale of its 0.28% NSR royalty over the large-scale Caserones copper mine in Chile and the repayment of a royalty Appian held over Peak Resources’ Ngualla rare earth project in Tanzania.

The diversity of these asset exits is indicative of how well-versed mining-focused Appian is in the sector’s ‘hot commodities’, but there is more to appreciate here than purely financial gains and well-timed acquisitions and divestments.

“People know that not all money is created equal,” Michael W Scherb, Founder and CEO of Appian (pictured), told IM. “We have a team that is able to solve specific operational challenges – we can call on specialists to solve problems on the process flowsheet side, for instance – while providing financial advice to avoid expensive streams and set assets up for profitability.”

Scherb’s words are backed up by a solid track record: seven of nine investments it has made have resulted in mine builds. Its divestments have also provided healthy returns.

The company has been able to do this by recruiting industry specialists – mining and finance – and educating them on the facets they need to succeed in both the private equity and mining world.

“People that join Appian need to be multi-faceted,” Scherb said. “We get mining folks to think like investors and vice versa,” he said.

This has seen them build a project review team populated with former consultants and an operations team full of mine personnel with operational experience.

“We then get all personnel to cross-train across these teams to avoid any siloed disciplines,” Scherb explained.

Take Santa Rita as an example of where this expertise paid off.

The company carried out a six-month due diligence process on Santa Rita, which led to the development of a more defensive and low-cost mine plan able to see the asset through nickel price peaks and troughs – in stark contrast to the plan former operator Mirabela Nickel had for the asset.

Among the operating changes implemented were the use of a smaller, locally procured equipment fleet of 40 t trucks (Santa Rita previously used Caterpillar 777 90 t and 785 137 t payload trucks), the use of shorter benches and tighter blasting patterns.

This resulted in better grade and fragmentation control, improving the feed to the crusher.

It also defined a significant underground resource base at the mine, which it will still be leveraged to thanks to the NSR royalty.

Such moves were based on exploiting the nickel sulphides at Santa Rita. This reoriented focus aligned with the industry preference for nickel tied to the battery materials space, which eventually paid off with the amount of interest in the asset.

This blend of technical and financial expertise has served the company – and any company it has an interest in – well. Backed by a long-term investment philosophy where its funds are 12 years in duration, the company can make moves aligned with the realities and timelines associated with turning assets into mines.

The next asset on the Appian books likely to move into construction-ready territory is Kalbar Operations’ Fingerboards mineral sands project, which focuses on the Glenaladale deposit, about 20 km northwest of Bairnsdale in Victoria, Australia.

Scherb said this project will be “build-ready” very soon, explaining that it is currently going through the permitting stage.

The project has the potential to be one of the world’s major producers of zircon, ilmenite, rutile and rare earths, and Kalbar is proposing an investment of over A$200 million ($148 million) in the development of a project able to produce around 575,000 t/y of heavy mineral concentrate over 15-20 years.

Scherb said Appian is keen to further pursue commodities associated with the electrification of industry, but he is aware of the premiums that may come with these deals.

“A lot of money has flooded into the battery metals,” he said. “We can be patient and are starting to look earlier stage in some investments.”

“Earlier stage” still has the potential to be producing in four- or five-year’s time, he clarified.

What’s clear is that the Appian team is gaining widespread recognition, with Scherb saying larger mining companies are starting to approach them with proposals that would see Appian gain operational control of assets, realising the firm has the right blend of “operational skill” and “value principles” to succeed.

Having acknowledged a skills shortage across the sector – one Appian is doing its bit to tackle with internship programs with universities in Canada, the UK and Australia – Scherb was confident the company’s talent would be retained and, ultimately, grow.

“In terms of talent retention, we at Appian offer experience of reviewing many different assets at different times in their lifecycle,” he said. “If you’re in-house at a mining company, you run the ruler over the same assets, stress testing them against different scenarios. We offer our teams variety that they cannot get in many places.

“At the same time, our structure means employees invest directly in companies to ensure they are correctly incentivised. This means they get to share in the profits.”

With plans to make one-to-three investments per year – along with the same number of exits – and expectations of committing its latest $775 million fund within the next two quarters, expect to hear more from Appian into 2022.

Howden delivers mine cooling plant at Roxgold’s Yaramoko mine

Howden says it has successfully delivered the first phase of an 8 MW surface bulk air cooling plant for Roxgold’s Yaramoko gold mine in Burkina Faso.

The Yaramoko Mine Complex is in a remote region of Burkina Faso, 200 km southwest of Ouagadougou.

The cooling plant is designed to deliver a maximum of 190 cu.m/s of chilled downcast ventilation air, with the air cooled from a design ambient temperature of 25.8°C, down to 15°C.

The plant comprises an open-spray vertical bulk air cooler located on top of the shaft collar, centrifugal chillers and conventional cooling towers, Howden explained.

Plant design and construction were started at the beginning of 2020 during the early onset of the COVID-19 pandemic, and, despite a challenging environment, Howden successfully delivered the project’s first phase in May.

Howden said: “This latest project continues to positioning Howden as a process and system specialist to design, supply and install mine cooling systems. Howden has a technology-neutral approach whereby technology options are offered which best suits customer’s technical and commercial requirements.”

The Yaramoko Mine Complex, which consists of two underground operations, delivered production of 35,308 oz of gold in the March quarter, Roxgold reported in May.

Roxgold lays Séguéla groundwork with Metso Outotec, Lycopodium contract awards

Roxgold says it has awarded a SAG mill order for the Séguéla gold project in Côte d’Ivoire to Metso Outotec as part of its efforts to advance the project through to construction in the coming months.

The move comes ahead of the release of feasibility study on the project next month, which will build on a 2020 preliminary economic assessment (PEA) that outlined an operation capable of delivering over 100,000 oz/y of gold over eight years at average all-in sustaining costs of $749/oz. This study also incorporated a single stage primary crush/SAG milling comminution circuit with 1.25 Mt/y throughput.

At the same time as selecting Metso Outotec for the SAG mill contract, Roxgold has awarded preferred contractor status to Lycopodium Minerals Pty Ltd and is currently negotiating the engineering, procurement, and construction (EPC) agreement with the company for the 1.25 Mt/y carbon-in-leach processing facility and other supporting infrastructure to be constructed at Séguéla.

The fixed price agreement increases confidence in the total capital cost for the project, as it is by far the largest scope at Séguéla, Roxgold said.

“With this agreement in the final stages of negotiation and several other key scopes now tendered and priced, approximately 65% of the pre-production capital estimate has now been fixed or finalised,” the company added. “This level of detail provides increased confidence around the pre-production capital estimate, which is expected to be in-line with the previous estimate of $142 million, as outlined in the PEA.”

In terms of progressing work on long-lead time items, Roxgold said it had awarded the plant site bulk earthworks tender, with a contract expected to be executed and works commenced in the June quarter to support the project critical path.

The company has continued to advance its early works program at site including upgrading of the site access road and construction of the accommodation village. Contracts were awarded for camp bulk earthworks and camp construction, with first concrete poured last month, it said.

Surveying has been completed for the 33 kV and 90 kV power lines to tie into the existing 90 kV transmission line running across the property, which is connected to the 225 kV ring main system around the country. These early work activities will enable a rapid ramp up to full construction upon completion of the feasibility study and mine financing in the June quarter of this year.

Roxgold says it has undertaken a competitive tender process and has conducted a detailed assessment of the contract mining proposals received. It is currently completing diligence on the shortlisted parties and plans to award the mining contract later this year to allow for contractor mobilisation, site establishment,and commencement of pre-production mining early next year.

John Dorward, President and Chief Executive Officer, said: “The Séguéla project has rapidly become a cornerstone asset for Roxgold, and we believe that the project will provide significant value to all our stakeholders.

“The feasibility study is on track to be announced in the second (June) quarter, which we believe will demonstrate the ongoing evolution of the Séguéla PEA with an enhanced mine life and project economics with the inclusion of the high-grade Koula deposit into the mine plan.”

Perenti’s AUMS wins two-year extension at Roxgold’s Yaramoko mine

Perenti subsidiary, African Underground Mining Services (AUMS), has been awarded a contract extension at Roxgold’s Yaramoko mine in Burkina Faso.

The contract extension is valued at around A$200 million ($146 million) over two years, from December 2021 to December 2023. It follows on from the existing development and production scope currently being executed, taking the total contracted work-in-hand at Yaramoko to some A$350 million as at the end of August 2020, Perenti said.

AUMS is an operating business unit of Barminco and has been successfully operating at the mine since the development of the Zone 55 portal in 2015. The project, 200 km southwest of Ouagadougou, has now grown to include the Bagassi South mine.

In the June quarter, Yaramoko produced 32,812 oz of gold, according to Roxgold.

Barminco’s Chief Executive Officer, Paul Muller, said: “The high-grade Yaramoko complex is an important project for Roxgold, Barminco and the people of the Yaramoko community. We are very pleased to extend our contract with Roxgold to December 2023 and look forward to continuing to create enduring value and certainty for our client, employees, shareholders and the people of Yaramoko and Burkina Faso alike.”

Perenti Managing Director and Chief Executive Officer, Mark Norwell, said Barminco and AUMS, combined, are a global leader in hard rock underground mining, with this contract extension reinforcing this sector leading position.