But whether there is a business case to mine for these elements in North Dakota is still up in the air because questions remain on how much of the coal has high rare earth concentrations ...

Freedom Mine, owned by a division of NACCO Industries, produces between 11.5 million and 13.5 million tons of lignite coal annually in Mercer County, North Dakota.

(Reuters) - The Trump administration on Tuesday took a key step toward leasing new areas to a North Dakota coal mine that is proposing to operate through 2045. WHY IT MATTERS The publication of a ...