Renewable Energy Group, the largest producer of biodiesel in the United States, announced terms for its IPO on Tuesday. The Ames, IA-based company plans to raise $101 million by offering 7.2 million shares at a price range of $13.00 to $15.00. At the mid-point of the proposed range, Renewable Energy Group will command a market value of $401 million. Renewable Energy Group, which was founded in 1996 and booked $627 million in sales for the 12 months ended September 30, 2011, plans to list on the NASDAQ under the symbol REGI. UBS Investment Bank and Piper Jaffray are the lead underwriters on the deal.