Coaltrade filed the complaint with the US District Court for the Eastern District of Kentucky on Monday, Associated Press reported.
Just two weeks ago Wheeling-Pittsburgh Steel filed a multi-million dollar lawsuit against Massey for the breach of a coal supply agreement.
The suit charged Massey subsidiary Central West Virginia Energy Company with breaching its long-term coal supply agreement beginning in late-2003 and continuing to the present, causing Wheeling- Pittsburgh Steel to purchase coal on the spot market at significantly higher prices.
Another lawsuit by Harman Mining Group, filed in 1998, is still pending.
In response to the legal action, Massey chairman Don Blankenship said his company had been forced to declare force majeure on multiple occasions due to transportation issues, labour shortages and other occurrences clearly defined by the coal supply contract as events of force majeure.

