Horsehead Holding Corp. (NASDAQ: ZINC)
According to the law firm press release, Horsehead, together with its subsidiaries, is a leading U.S. producer of zinc metal and a leading recycler of electric arc furnace dust. The Company derives the majority of its revenues from the sale of zinc. On February 2, 2016, Horsehead filed for protection under the bankruptcy laws and, therefore, is not named as a defendant in this action.