DVSA Diversa (MM)

CAMBRIDGE, Mass., May 11 /PRNewswire-FirstCall/ -- Celunol Corp., a leader in the development of cellulosic ethanol, announced today that members of its management will participate in four upcoming conferences. Carlos A. Riva, Chief Executive Officer of Celunol Corp., will be presenting at the Merriman Curhan Ford & Company Next-Generation Energy Conference. The presentation is scheduled to begin at 10:15 a.m. (Eastern Time) on Tuesday, May 15, and will take place at Le Parker Meridien Hotel, New York. A live webcast may be accessed during the presentation and for a limited period of time following the conference at http://www.wsw.com/webcast/mcm6/dvsa/. Mr. Riva will also be presenting at the UBS Global Alternative Energy Conference. The presentation is scheduled to begin at 2:30 p.m. (Eastern Time) on Tuesday, May 15, and will take place at the Grand Hyatt, New York. A live webcast may be accessed during the presentation and for a limited period of time following the conference by going to http://www.ibb.ubs.com/ and navigating to the "Conferences" link in the middle, right side of the page. In addition, Mr. Riva will be presenting at the Bank of America 2007 Smid Cap Conference. The presentation is scheduled to begin at 4:00 p.m. (Eastern Time) on Wednesday, May 16, and will take place at the Four Seasons Hotel, Boston. A live webcast may be accessed during the presentation and for a limited period of time following the conference at http://www.veracast.com/webcasts/bas/smidcap07/id75110404.cfm. John A. McCarthy, Jr., Executive Vice President & CFO of Celunol Corp., will participate in an Ethanol Panel discussion at the Simmons & Company International Alternative Energy Conference. The Ethanol Panel is scheduled to begin at 9:00 a.m. (Pacific Time) on Thursday, May 31, and will take place at The Fairmont Sonoma Mission Inn in Sonoma, California. About Celunol Celunol Corp., headquartered in Cambridge, Massachusetts, is moving rapidly to commercialize its proprietary technology for producing ethanol from a wide array of cellulosic biomass feedstocks including sugarcane bagasse, agricultural waste, wood products and dedicated energy crops. Celunol holds exclusive rights to employ key technology developed at the University of Florida in the early 1990s for the production of fuel ethanol. The company aspires to develop and build a portfolio of cellulosic ethanol and other biomass facilities in the U.S. and abroad. Celunol has recently completed upgrades to its pilot-scale cellulosic ethanol plant in Jennings, Louisiana, which is one of the first such facilities in the nation. The company is currently constructing a demonstration-scale cellulosic ethanol facility at the same site with a design production capacity of 1.4 million gallons per year. Celunol has also licensed its technology to Marubeni Corporation and Tsukishima Kikai Co., LTD for facilities built in Japan and certain other Asian countries. Pursuant to this license the company's process technology has been incorporated into Bioethanol Japan's 1.4 million liters-per-year cellulosic ethanol plant in Osaka, Japan -- the world's first commercial scale plant to produce cellulosic ethanol from wood construction waste. On February 12, 2007 Celunol and Diversa Corporation (NASDAQ:DVSA), a leader in the development of high-performance specialty enzymes, announced that they have entered a definitive merger agreement. For more information on Celunol, visit http://www.celunol.com/. DATASOURCE: Celunol Corp. CONTACT: Kevin Stickney of Calypso Communications, +1-603-431-0816, for Celunol Corp.; or John B. Howe of Celunol Corp., +1-617-674-5318, Web site: http://www.celunol.com/

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