Senator Joe Manchin of West Virginia, the second largest coal-producing state in the country. It then sells the coal at a loss to power plants to generate the real benefit for the drug company: credits that allow Mylan to lower its own tax bill. Mylan says in its last two annual reports that its holdings are equity method investments in five limited liability corporations that own refined coal production plants, but does not name them. The pharmaceutical company that just months ago was embroiled in a price-gouging scandal over its life-saving EpiPen now finds itself at the center of another potential controversy. Mylan is one of only a few public companies, and the only publicly-traded pharmaceutical maker, that uses these tax credits, a Reuters review of a comprehensive database of filings with the U.