Valence added to NASDAQ Clean Edge U.S. Index

Semi-Annual Changes to the NASDAQ Clean Edge U.S. Index and the NASDAQ Clean Edge U.S. Liquid Series Index

NEW YORK - The NASDAQ OMX Group, Inc. announced today the results of the semi-annual evaluation of the NASDAQ(r) Clean Edge(r) U.S. Index and the NASDAQ(r) Clean Edge(r) U.S. Liquid Series Index (the "Indexes"), which will become effective with the market open on Monday, March 24, 2008.

The following eight securities will be added to the Indexes: Advanced Battery Technologies, Inc. (Nasdaq:ABAT), Akeena Solar, Inc. (Nasdaq:AKNS), Ascent Solar Technologies, Inc. (Nasdaq:ASTI), Gushan Environmental Energy Limited (NYSE:GU), Orion Energy Systems, Inc. (Nasdaq:OESX), Solarfun Power Holdings Co., Ltd. (Nasdaq:SOLF), Ultralife Batteries, Inc. (Nasdaq:ULBI) and Valence Technology, Inc. (NYSE:VLNC).

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