Tag Archives: African Underground Mining Services

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.

RCT brings ControlMaster automation tech to SEMAFO-owned Siou underground mine

OEM-agnostic autonomous solutions specialist RCT says it has executed a project with Perenti-owned African Underground Mining Services (AUMS) at the Siou underground gold mine, in Burkina Faso.

Earlier this year, RCT commissioned its ControlMaster® Guidance Automation technology on two of Siou’s Caterpillar R2900G underground LHDs and supplied two associated Automation Centres.

Siou, owned by SEMAFO, is a gold deposit some 20 km from the Mana mine. Conversion of Siou open pit into underground mining operations began in the September quarter of 2018 with full underground production expected shortly, according to SEMAFO.

Guidance Automation enables the loaders to operate with minimal intervention by machine operators located in the Automation Centres, either on the surface of the mine or in a secure location in the underground mine, RCT said.

“The automation solution improves safety onsite by relocating mine personnel away from the mine face and reducing unplanned maintenance downtime by eliminating machine operator errors,” RCT said.

RCT says its Africa-based staff has provided comprehensive training to machine operators and will continue to provide ongoing after-sales support to AUMS.

AUMS invests in more Immersive Technologies simulators

African Underground Mining Services (AUMS), a Barminco and Ausdrill 50:50 joint venture contract mining firm, has made further investment in simulators from Immersive Technologies after seeing successful results from the installation of previous training units.

The company has placed additional orders to increase its training capacity, including Professional Services to support the technology integration, Immersive said.

It comes after AUMS saw results from its initial deployment of two IM360 Simulator Platforms with Conversion Kits for Sandvik long hole drills, jumbo drills, LHDs and trucks, along with Conversion Kits for Cat trucks and LHDs.

Scott Miller, AUMS Group Environmental Health, Safety & Transportation Manager, said: “We are committed to investing into quality training that can be applied across new projects. We use the local workforce and the ability to train them using simulators has proven to be a vital part of on-boarding and continual improvement.”

AUMS provides a structured training programme using simulator technology to optimise the training process for inexperienced heavy equipment operators, according to Immersive.

“This structured approach extends to their Train the Trainer programme where, in mutual collaboration with Immersive Technologies, an annual TrainerAdvantage™ training session was conducted over a two-week period at the Immersive Technologies head office in Perth,” the company said.

Simon Vellianitis, Immersive Technologies, Regional Manager, said: “Training is important to AUMS and they have shown how that dedication can equate to dollars. We are proud to see the results they have achieved and honoured with their continued investment.”

Earlier this year, Ausdrill acquired Barminco in a deal that valued Barminco’s equity at A$271.5 million

AUMS wins contract at AngloGold Ashanti’s Obuasi mine in Ghana

African Underground Mining Services (AUMS) has been awarded a $375 million underground mining services contract at one of West Africa’s oldest mines, Obuasi, in Ghana.

The five-year contract at the AngloGold Ashanti operation will see AUMS team up with Rocksure International, a Ghana-based mining contractor, under a 70:30 joint venture.

AUMS, owned 50:50 by Ausdrill and Barminco Holdings, will provide a full suite of underground mining services at Obuasi, with major capital equipment supplied by AngloGold. Works are expected to commence in the March quarter, with some 550 people due to be employed during the project term.

Blair Sessions, AUMS Chief Operating Officer, said the company was pleased to extend its relationship with AngloGold, adding AUMS and Rocksure would “deliver on this project using modern and efficient mining methods, supporting local suppliers and providing employment and training opportunities to Ghanaians”.

Graham Ehm, AngloGold Executive Vice President – Group Planning and Technical – said the contract award was a major milestone towards recommencing production at Obuasi and delivering on outcomes that would benefit the national, regional and local economies.

Earlier this year, AngloGold said it would spend $450-500 million to redevelop Obuasi into a modern, productive mining operation. The mine had been in limited operating phase since 2014.

Since commencing operations in Ghana eight years ago, AUMS has trained over 1,200 Ghanaians through a range of mining, engineering and apprenticeship programmes, AUMS said. Ausdrill, meanwhile, has a 27-year history in the country through its African Mining Services (AMS) subsidiary.

AUMS and AMS, combined, employ more than 1,800 people in Ghana across five projects. The two businesses have generated around A$2.8 billion ($1.99 billion) of revenue in the country.

Ausdrill is currently in the middle of taking over AUMS JV partner Barminco in a deal that values the latter’s equity at A$271.5 million. Last week, Ausdrill shareholders approved the acquisition, paving the way for the deal to be completed by the end of the month.