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


NEW YORK, Sept. 11, 2006 (PRIMEZONE) -- The Nasdaq Stock Market, Inc. ("NASDAQ") (Nasdaq:NDAQ) announced today the results of the semi-annual evaluation of the NASDAQ(r) Clean Edge(r) U.S. Index (Nasdaq:CLEN), which will become effective with the market open on Monday, September 18, 2006.

The evaluation will result in one security being added to the Index, AVX Corporation (NYSE:AVX). AVX Corporation is an international supplier of electronic passive components and connectors. AVX offers a range of devices including capacitors, resistors, filters, timing and circuit protection devices and connectors.

The securities included in the Index must meet eligibility criteria which include minimum requirements for market value, average daily share volume, and price. The Index is evaluated on a semi-annual basis in March and September. For more information about the NASDAQ Clean Edge U.S. Index, including eligibility criteria, visit

As a result of the evaluation Ultralife Batteries, Inc. (Nasdaq:ULBI) will be removed from the Index.

NASDAQ is the largest U.S. electronic stock market. With approximately 3,200 companies, it lists more companies and, on average, trades more shares per day than any other U.S. market. It is home to companies that are leaders across all areas of business including technology, retail, communications, financial services, transportation, media and biotechnology. NASDAQ is the primary market for trading NASDAQ-listed stocks. For more information about NASDAQ, visit the NASDAQ website at or the NASDAQ Newsroom at .

About Clean Edge

Clean Edge, Inc., with offices in Oakland, Calif. and Portland, Ore., is a leading research and publishing firm that helps companies, investors, and policymakers understand and profit from clean technologies. Through its research and reports, conferences and events, online publications, and strategic consulting services, Clean Edge tracks and analyzes clean-tech markets, trends, and opportunities. Launched in 2001 by environmental and high-tech business pioneers Ron Pernick and Joel Makower, Clean Edge and its network of partners and affiliates offer unparalleled insight and intelligence. For more information, visit .

CONTACT: The Nasdaq Stock Market, Inc. Media Contact: Wayne Lee (301) 978-4875 Issuer and Investor Contact: Lisa Chaney (301) 978-8281

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