NEW YORK, NY "“ July 8, 2008 - The Cleantech Group(TM), LLC has expanded The Cleantech Index(TM) (AMEX: CTIUS) by 34 companies to its portfolio of global cleantech leaders. The changes are also reflected in funds based upon CTIUS, including the PowerShares Cleantech Portfolio ETF (Amex: PZD) and KSM Cleantech ETF (Ticker: KSCUS.15) in Israel. The expansion occurred at the regular quarterly rebalancing on June 28, 2008.

"The expansion augments the Index's coverage of the surging global demand for clean technology solutions to major resource and environmental challenges," said Rafael Coven, Managing Director of Cleantech Indices for the Cleantech Group, LLC, and Index Advisor.

"Many of the best cleantech companies trade on foreign exchanges, so the expansion ensures CTIUS remains the premier index tracking the growth of cleantech across a broad range of industry sectors and geographies. We now have a much larger pool of quality companies and industry sectors from which to select."

The Cleantech Group's Cleantech Index is the first, and only, equity index to offer investors and index licensees an easy, liquid, and cost-effective way to track and invest in the broad cleantech category. Unlike indices that specifically track narrow sectors such renewable energy or water, the Cleantech Index includes leading companies from a broad range of sectors such as advanced materials, agriculture, transportation, manufacturing, in addition to energy efficiency, renewables and water.

"The broad cleantech category has shown superior performance than more volatile and narrowly defined vertical or sector indices," said Coven.

CTIUS is the industry gold standard upon which a growing range of financial products are based. In 2007, the Index outperformed the S&P 500 by 37.4%, over the last 12 months by 26.3% and in 2008 (through June 27) by 6.5%.

Non-US companies now comprise approximately half of the 76-company Index. The expansion includes 24 European companies, six from Asia and four from North America.

Index companies must derive at least half of their operating profits or revenues from clean technology businesses, and pass 16 other stringent quantitative and qualitative screens just to be considered for inclusion. "There were perhaps only about 90 companies in the entire stock universe that could pass those screens so this is quite a select group of industry leaders," he noted.

The companies joining the Index are:

Accsys Technologies, UK (AXS.L)
Arcadis, Netherlands (ARCAD.AS)
Asahi Pretec, Japan (5855:JP)
Best Water Technology, Austria (BWT.VI)
Centrotherm PV, Germany (CTN.DE)
Chloride Group, UK (CHLD.L)
Christ Water Technologies, Austria (CWT.VI)
Energy Development Co., The Philippines (EDC:PM)
Eurofins Scientific, Belgium (ERF.PA);
Fuel Systems Solutions, USA (FSYS)
Gamesa, Spain (GAM.MC)
Grontmij, Netherlands (GRONT.AS)
Gurit Holding, Switzerland (GUR.SW)
Hansen Transmissions International, Belgium (HSN.L)
Horiba, Japan (6856:JP)
Hyflux, Singapore (600.SI)
Iberdrola Renovables, Spain (IBR.MC)
Kingspan Group, Ireland (KRX.IR)
Kurita Water Industries, Japan (6370:JP)
Meyer Burger Technology, Switzerland (MBTN.SW)
Novozymes, Denmark (NZYM.CO)
Plant Health Care, UK (PHC.L)
Renewable Energy Corp., Norway (REC.OL)
Roth & Rau, Germany (R8R.DE)
Saft Groupe, France (SAFT.PA)
Schneider Electric, France (SU.PA)
Solar Millennium, Germany (S2M.DE)
Suzlon Energy, India (SUZLON.NS)
Tomra Systems, Norway (TOM.OL)
Vaisala, Finland (VAIAS.FH)
Vestas Wind Systems, Denmark (VWS.CO)
Waterfurnace Renewable Energy, USA (WFI.TO)
Westport Innovations, Canada (WPT.TO)
Xantrex Technology, Canada (XTX.TO)

The complete list of Cleantech Index companies is listed at www.cleantechindex.com.

About Cleantech Group, LLC

The Cleantech Group pioneered the cleantech investment category in 2002. Today, it accelerates the development and market adoption of clean technologies globally through membership in the largest global network of investors and companies, representing more than $3 trillion in assets. Member investors, growth companies/vendors, enterprises, service providers, and others receive access to capital, investment opportunities, market leading research and data, insight, sales opportunities, human capital, and promotional opportunities. The Cleantech Group also produces the premier Cleantech Forum events worldwide. Details at www.cleantech.com.

Cleantech Group LLC

Cleantech Group LLC

The Cleantech Group™ LLC provides insight, opportunities and builds relationships that catalyze and accelerate the growth of cleantech markets globally. The Cleantech Group™ family of companies are the founders of the cleantech investment category and bring investors, executives, thought leaders, policy makers and entrepreneurs together to facilitate the growth of cleantech globally through six business units; the Cleantech Venture Network®, Cleantech Advisors™, Cleantech Indices™, Cleantech China™, Cleantech Innovation Institute™ and Cleantech Search™. Since introducing cleantech as a viable investment thesis in 2002 the efforts of the Cleantech Group™ companies has spawned a new investment class with an annual growth rate exceeding 50 percent in North America with over $2.9 billion in venture capital invested in 2006, a 78% increase over 2005.

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