McAleese and Atlas Iron have agreed to double the levels of iron ore hauled under its existing agreements.
The transport company won its fifth haulage contract with Atlas Iron late last year.
The four year contract, valued at approximately $250 million, involves the loading and hauling of around three million tonnes of iron ore annually starting from June this year.
This new agreement will now see haulage levels increase to six million tonnes per annum by January next year.
“We are extremely pleased to be awarded this additional three million tonnes for Mt Webber,” McAleese group managing director Mark Rowsthorn said.
This extra three million tonnes will add more than $220 million in extra revenue over the life of the contract.
On the back of this agreement McAleese will invest around $30 million in operating equipment and infrastructure.
“We have expanded our Port Hedland facility and are continuing to grow our operational capacity in the Pilbara,” Rowsthorn added.