| May 1, 2006 For Immediate Release    IOGEN GETS BOOST FROM GOLDMAN SACHS  Wall Street firm invests $30 million in cellulose ethanol leader Ottawa - Iogen Corporation announced today
                          that Goldman Sachs & Co. of New
                          York has invested $30 Million (CDN) in its renewable cellulose ethanol
                        technology.   "Goldman is the first major Wall Street firm to make a
                          commitment to cellulose ethanol," says Iogen CEO Brian Foody. "Renewable fuels
                          like cellulose ethanol are one of the main options President Bush recently
                        highlighted to reduce America's dependence on foreign oil.  Goldman's investment gives it a minority stake in Iogen,
                          the only company to be operating a demonstration facility that converts
                          agriculture materials like straw, corn stalks, and switchgrass to ethanol.  Goldman joins the Royal Dutch/Shell Group as
                          a major investor.  The funds will be
                        used to accelerate Iogen's commercialization program. Cellulose ethanol will allow a much greater expansion of
                          U.S. domestic alternative fuel supply because there is a substantial untapped
                        existing biomass resource.  A joint study by the U.S. Departments of Agriculture and
                          Energy (USDA and DOE) has concluded that the land resources of the US could
                          produce a sustainable supply of biomass sufficient to displace 30% (60 billion
                          gallons of renewable fuel per year) of the country's present gasoline
                        consumption.   Cellulose ethanol is a fully renewable, advanced biofuel
                          that can be used in today's cars.  It is one of the most cost effective
                          ways to reduce gasoline consumption and greenhouse gas emissions from
                          automobiles.
 About Iogen
    Corporation:
 Iogen is a leading biotechnology firm
                          specializing in cellulose ethanol - a fully renewable transportation fuel made
                          from agricultural residue that can be used in today's cars. The Company also
                          develops, manufactures and markets enzymes used to modify and improve the
                          processing of natural fibres within the textile, animal feed, and pulp and
                          paper industries. In operation since 1974, Iogen is a privately held company
                        located in Ottawa, Canada. For more information, visit www.iogen.ca About
                        Goldman Sachs: Goldman Sachs is a leading global investment banking, securities
                          and investment management firm that provides a wide range of services worldwide
                          to a substantial and diversified client base that includes corporations,
                          financial institutions, governments and high net worth individuals. Founded in
                          1869, it is one of the oldest and largest investment banking firms. The firm is
                          headquartered in New York and maintains offices in London, Frankfurt, Tokyo,
                        Hong Kong and other major financial centers around the world. For more information, please contact:Jeff Passmore, Executive V.P., Iogen Corporation
 (613)
                        733-9830
 jeffp@iogen.ca
 www.iogen.ca
 
 Michael Duvally,
 Goldman Sachs,
 (212) 902-2605
 michael.duvally@gs.com
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