Project data
Overview
Located five kilometres south of Muswellbrook in the Upper Hunter Valley of New South Wales, Mount Arthur South is an open-pit operation producing thermal coal.
Thiess has a long and established history in the Hunter Valley, spanning more than 80 years.
Thiess has supported BHP at Mount Arthur South since 2017, initially delivering load and haul services before expanding into additional mining activities including overburden and coal mining, mine design, planning and scheduling, and drill and blast operations across the southern end of the site. In 2019, the scope increased further when Thiess assumed statutory responsibility for operating the Ayredale and Roxburgh pits as mine operator.
In 2024, Thiess secured a six‑year contract extension with BHP valued at AU$1.9 billion, continuing the delivery of mining services and the operation and maintenance of mining equipment to support BHP’s production requirements. The extension will also see Thiess work closely with BHP and the local community to support the site’s planned closure program.
Thiess’ long‑standing presence in the Hunter Valley is marked by strong community engagement, a focus on workforce diversity and a commitment to local employment. Programs such as Thiess’ award‑winning MASITE initiative have helped increase Indigenous and female participation across the workforce, demonstrating the shared values between Thiess and BHP in supporting an inclusive local economy.
Related Resources
7 May 2024 | Thiess join forces with WesTrac and Caterpillar® to hit 1M metre autonomous drilling milestone at Mt Arthur South
12 April 2024 | Thiess secures six-year contract extension at Mount Arthur South
27 March 2024 | Championing diversity and inclusion at Mount Arthur South
20 February 2024 | Mt Arthur South Indigenous Trainee Program
