The planned closure is response to continual drop in prices of metallurgical coal and the ongoing integration of PBS Coals into the company’s Northern Appalachian (NAPP) Division.
The company plans to transfer certain staff and equipment from the affected mines transferred to its Casselman and Quecreek operations.
Corsa CEO George Dethlefsen said: "We regret the need to take today’s actions, however, we anticipate these moves will improve the overall cost structure of the NAPP Division while still maintaining premium quality metallurgical coal specifications.
"The company will shift its near term metallurgical coal production to its lowest cost operations while preserving other reserves for future development at a time when the market is stronger."
Once sales commitments and production decisions are finalized, the company will provide an updated outlook for 2015.
