Perenti has secured contract extensions valued at A$420m ($275.35m) across three different geographies, the Australian underground mining business operator said this week.

Development and production works at Gold Fields' Agnew plant will continue under a 12-month contract worth A$125m.

A second 12-month contract extension – valued at A$180m – has been secured at the AngloGold Ashanti Obuasi underground gold mine in Ghana.

Meanwhile, a two-year contract extension worth A$115m has been agreed to continue development and production activity at the Roxgold Yaramoko gold mine in Burkina Faso.

The three contract extensions follow news in the fourth quarter of 2023 that Perenti subsidiary African Mining Services had been awarded a A$368m contract by Sandfire Resources to carry out work at the A4 open pit within the larger Motheo copper mine in Ghanzi, Botswana.

Mark Norwell, managing director and chief executive officer of Perenti, said the organisation "prides itself on its enduring relationships".

He said: "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."

Iwanow 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."

Last year, Iwanow was appointed president of Perenti’s Contract Mining division, replacing Paul Muller, who will be taking up a new role within the Perenti Group Executive Committee, following a short period of study leave between January and May 2024.

Iwanow's career includes significant time in senior management positions at Australian Stock Exchange (ASX) 100-listed mining companies OZ Minerals and Rio Tinto. Most recently she was the managing director and CCEO of Mincor Resources.