Golding Contractors has won a contract extension worth about $150 million to continue to mine the Kogan Creek coal site.

The four-year contract extension represents the third mining contract term to date for Golding and CS Energy at Kogan Creek mine.

The NRW Holdings subsidiary performed the civil works in 2006 before mining commenced in 2007.

All major plant and equipment will be supplied by Golding under the new arrangement, requiring a capital spend of about $11 million in the first year.

Kogan Creek mine supplies black coal to the CS Energy Kogan Creek power station near Chinchilla via a 4km overland conveyor belt.

CS Energy chief executive officer Andrew Bills said Golding Contractors had proven to be an efficient mine operator and provided a highly competitive bid for the ongoing operations of the mine.

“We look forward to continuing to work with Golding Contractors as they maintain a consistent supply of quality coal to Kogan Creek Power Station,” Mr Bills said.

“Kogan Creek Power Station is one of the youngest and most efficient coal-fired power stations in the country and plays an important role in providing a secure supply of electricity to support Australia’s evolving energy mix.”

NRW said Golding would continue to employ about 70 people at the mine, most living in the Chinchilla or broader South East Queensland region.

“Golding has now successfully negotiated four contract extensions with four different clients in the last six months, demonstrating the business’ goal to work with our clients to deliver sustained value.”

They include a $120 million deal secured in September to continue to deliver mining services at Phosphate Hill out until September 2026.

Related: Golding in $1b Curragh coal extension deal

In August the group announced a $1 billion to $1.4 billion deal with Coronado Global Resources to continue its work at Curragh coal mine near Blackwater.

That was followed last month by a Letter of Direction (LOD) to introduce a seventh fleet at the operation for a 12-month period, commencing February 1.

Golding also recently signed a contract with the Fitzroy Australia Resources group of companies to re-establish open-cut mining in the Broadlea pit for a period of six months, with work commencing this month.

The contractor said the extra Curragh and Broadlea work combined was valued around $60 million.