Costs were also impacted due to working near faulted zones in the mining pit.
The company is also claiming interest on any damages award and costs.
The rebate reflects the company's ongoing commitment to research and develop.
AGL Energy, Origin Energy, New Hope Corp and Whitehaven have been added to the list.
The challenge was to automate the water trap draining process in a manner that could be monitored.
BlackRock pulls plug on coal.
The company regularly monitored its memberships' positions on key issues such as climate change.
Sumitomo will spend up to $7.5 million to earn up to 20% of the project.
Kaeser said he had wanted to hear from federal resources minister Matt Canavan himself.
It was thought to be too hard to find enough people to sit on the council.
The key component of the project includes an underground longwall - plus bord & pillar - mine.
US coal-fired power plants closing fast.