On Oct. 11, Chile's Constitutional Court put the brakes on a $4 billion deal allowing the sale of A 24 percent stake in SQM to China's Tianqi Lithium Corp.
The operation was put on hold in 2013 due to environmental issues, political opposition, labor unrest and development costs that ballooned to $8.5 billion.
Peabody Energy intends to permanently seal the area where high methane levels have been concentrated after it reported fire in its North Goonyella mine.
