U.S. Silica Holdings, the second largest domestic producer of commercial silica with 13 facilities across the U.S. and 283 million tons of reserves, filed on Monday with the SEC to raise up to $200 million in an initial public offering. U.S. Silica was brought private in 2007 by private equity firm Harvest Partners, and is currently owned by Golden Gate Private Equity. The Frederick, MD-based company, which was incorporated in 2008 and booked $254 million in sales for the 12 months ended March 31, 2011, plans to list on the NYSE. Morgan Stanley is the lead underwriter on the deal. No pricing terms were disclosed.