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AEI NEWSLETTER ISSUE 21:

11th January - 1st February 2008

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The aim of this newsletter is to complement the news-based website, with a primary focus on price-based information over the previous week and to advise of forthcoming company announcements (see bottom) and IPOs.

Winners and losers: January 4th - 1st February 2008

THE WINNERS

1. Ceres Power +21.72%

On the 14th January, Centrica acquired a 9.99% stake in Ceres Power and this was approved by shareholders on the 1st February.

2. Climate Exchange Plc +17.98%

On the 15th January, Climate Exchange was able to report major increases in annual trading volumes on 3 of its exchanges for 2007. The Chicago Climate Exchange was up 123%, the European Climate Exchange up 129% and the Chicago Climate Futures Exchange, up 881%.

3.