Barminco has agreed the terms of a variation and extension to its development and production contract at MMG’s Dugald River zinc-lead mine, in north Queensland, Australia.

In addition to several amended contract conditions, the variation extends the term of the contract by 18 months to December 31, 2022, with two, one-year options to extend further. The value of the 18-month extension for Perenti’s hard-rock underground miner is approximately A$140 million ($103 million).

Barminco has been operating at Dugald River since 2012. IM recently reported MMG and Barminco were trialling an automated Sandvik LHD at the mine to further boost production.

Barminco’s Chief Executive Officer, Paul Muller, said: “We are excited to continue our relationship with MMG, which began in 2001 at the Rosebery mine in Tasmania. Dugald River has been a significant project for Barminco since commencement during 2012, and this extension will take our valued relationship with MMG to over 20 years.”

Perenti Managing Director and Chief Executive Officer, Mark Norwell, said Perenti had a “robust” tender pipeline of A$8.8 billion and its Underground Industry Sector Group had secured more the A$540 million in contract extensions this financial year.