Iogen Corporation to Review Strategic Alternatives

OTTAWA, September 14, 2010 - Iogen Corporation today announced that its Board of Directors has
initiated a process to explore strategic alternatives for enhancing
shareholder value and funding the deployment of its world leading renewable
energy technology. The company has retained Goldman, Sachs & Co. as its
exclusive financial advisor.

Iogen Corporation is a joint owner, with Royal Dutch Shell plc, of Iogen
Energy, the industry leader in developing commercial technology for making
cellulosic ethanol from agricultural residue. Iogen Corporation also owns and
operates, through its wholly-owned Iogen Bio-Products subsidiary, a
commercial enzyme business and manufacturing facility serving customers
globally.

"Iogen Corporation has developed advanced biofuel technology that is
ready to be deployed and enjoys a valuable set of commercial development
rights for that technology. Fully exploited, these rights offer a tremendous
business opportunity," said Clive Mather, Chairman of Iogen Corporation. "At
this time, the Board of Directors feels that it is appropriate to examine all
alternatives which will allow the company to realize the potential of this
technology and thereby maximize shareholder value."

Iogen Corporation (www.iogen.ca) is a privately held company
located in Ottawa, Canada. In business since 1974, it develops, manufactures
and markets enzymes used to modify and improve the processing of natural
fibers within the textile, animal feed, pulp and paper, grain processing
and brewing industries. Iogen Corporation also owns 50% of Iogen Energy and,
like Shell, holds significant independent rights to commercially exploit
the Iogen Energy cellulosic ethanol technology.

Iogen Energy, a 50-50 joint venture between Iogen Corporation and Shell,
is a leading biotechnology firm specializing in cellulosic ethanol, which it
has been producing from wheat straw at its Ottawa demonstration plant since
2004. Development of the Iogen Energy cellulosic demonstration plant as well
as strategic research and development in cellulosic ethanol technology was
made possible in part with the assistance of the Technology Partnerships
Canada Program (now administered by Industry Canada's Industrial Technologies
Office).

Iogen Bio-Products, a wholly-owned subsidiary of Iogen Corporation,
develops, manufactures and markets enzymes used to modify and improve the
processing of natural fibers within the textile, animal feed, pulp and paper,
grain processing and brewing industries.

Royal Dutch Shell plc ("Shell") is incorporated in England and Wales, has
its headquarters in The Hague and is listed on the London, Amsterdam and New
York stock exchanges. Shell companies have operations in more than 110
countries and territories, with businesses including: bio-fuels; oil and gas
exploration; production and marketing of liquefied natural gas and gas to
liquids; and the marketing and shipping of oil products and chemicals.

For further information: For further information: Lisa Hanke, Senior
Associate, Public Affairs and Communications, Iogen Corporation,
+1-613-733-9830

For further information: For further information: Lisa Hanke, Senior
Associate, Public Affairs and Communications, Iogen Corporation, +1-613-733-9830