The company has issued 60-day worker adjustment and retraining notification (WARN) act notices to the employees.
The Corridor G complex comprises the Hobet 21 mine and Beth Station preparation plant. In 2013, the complex produced 2.3 million tons of thermal coal and has a workforce of 360.
Patriot Coal president and CEO Bennett Hatfield said: "The combination of increasing EPA regulations, mild summer weather and low natural gas prices has resulted in thermal coal pricing at levels below operating costs at many Appalachian mines
"Over the next two months, Corridor G management will further evaluate operations and staffing to assess their ability to produce coal at lower costs and determine the extent of actions to be taken.
The latest job cuts come after the company issued similar notices to employees at its Wells mining complex and Corridor G mining complex in April.
