PZD Invesco Cleantech ETF

Telvent (TLVT) and Power Integrations (POWI) Join Cleantech Index NEW YORK, March 27 /PRNewswire/ -- Cleantech Indices, LLC, in conjunction with the American Stock Exchange (AMEX), today announced the quarterly rebalancing of The Cleantech Index (AMEX:CTIUS), effective March 29, 2008. (Logo: http://www.newscom.com/cgi-bin/prnh/20080109/AQW116LOGO ) Spain's Telvent GIT S.A. (NASDAQ:TLVT) and California-based Power Integrations (NASDAQ:POWI) will join The Cleantech Index and replace International Rectifier (NYSE:IRF), Power-One (NASDAQ:PWER) and EnerNOC, Inc. (NASDAQ:ENOC). The changes will also be reflected in the exchange-traded funds (ETFs) based upon CTIUS: the PowerShares Cleantech Portfolio ETF (AMEX:PZD) and the KSM Cleantech ETF (Bloomberg ticker: KSMCLNT) in Israel. "We selected Telvent and Power Integrations for their strong growth potential, technology, impact, sector representation and leadership," said managing partner and index advisor, Rafael Coven of Cleantech Indices. "Both companies excel at applying innovative cleantech solutions to a broad array of applications that millions of people use everyday: from appliances, lighting and telecom networks to public transport and highways systems." Telvent, a global information technology company, provides real-time services and products to customers in energy and energy transmission and for intelligent transportation systems for roadways and public transport networks. Telvent also provides IT solutions for water and wastewater management, and continuous monitoring of emissions, air & water quality and weather conditions. Power Integrations Inc. is a leading developer and manufacturer of proprietary high-voltage analog integrated circuits (ICs) used in power conversion. Utilizing its Eco-Smart(R) technology, the company's ICs have enabled compact, lightweight power supplies that are more energy-efficient and reliable for a broad range of consumer and industrial products. About The Cleantech Index(TM) (CTIUS) The Cleantech Index is the first, and only, equity index intended to reflect the surging global demand for clean technology products and services. CTIUS is comprised of 46 public companies that are leaders in cleantech innovation and commercial deployment across a broad range of industry sectors: from energy efficiency and renewables to advanced materials, air & water purification, eco-friendly agriculture/nutrition, etc. By tracking the market performance of the premier cleantech companies, CTIUS is the industry standard index used for a growing range of financial products. Investors now have an easy, cost-effective, and liquid means to invest in the broad cleantech investment category -- and do so with less risk than previously possible. For more information visit: http://www.cleantechindex.com/. About Cleantech Group(TM), LLC The Cleantech Group, LLC provides insight, opportunities and builds relationships that catalyze and accelerate market adoption and commercialization of clean technologies globally. The Cleantech Group family of companies founded the cleantech investment category and through its membership services brings together investors, executives, thought leaders, policy makers and entrepreneurs to facilitate the growth of cleantech globally. http://www.newscom.com/cgi-bin/prnh/20080109/AQW116LOGO http://photoarchive.ap.org/ DATASOURCE: Cleantech Group, LLC CONTACT: Cleantech Group, LLC, +1-810-224-4310, Web site: http://www.cleantech.com/ http://www.cleantechindex.com/

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