Mining.com reported that Peabody Energy (NYSE: BTU) and Arch Coal (NYSE:ACI) have been hit by class action lawsuits over their employee retirement plans.

As quoted in the market news,

Both U.S. coal companies, already hit by the effects of depressed commodity prices, saw their stock collapse not just on these news, but also amid concerns that they will have to pay more for insurance that covers environmental damage.

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