PowerShares Cleantech(TM) Portfolio Goes Global

CHICAGO, IL , announced today that the PowerShares Cleantech? Portfolio (PZD) will be rebalancing to include a foreign security weighting.

As of June 27, 2008, the Cleantech Index(TM) will rebalance to allocate an approximate 45% weighting of components to companies domiciled outside the United States including Canada, Philippines, Singapore, China, Japan, India, France, Germany, Spain, Switzerland, Denmark, United Kingdom, Norway, Finland, Austria, Netherlands, Portugal, Hong Kong, Israel and Belgium.

The PowerShares Cleantech? Portfolio (PZD) tracks the Cleantech Index(TM) (ticker: CTIUS), which is designed to track cleantech companies, from a broad range of industry sectors. "Cleantech businesses" are defined as those that provide knowledge-based products (or services) that add economic value by reducing cost and raising productivity and/or product performance, while reducing the consumption of resources and the negative impact on the environment and public health. The Cleantech Index(TM) focuses on companies which are leaders in the innovation and commercial deployment of cleantech products across a broad range of industries including, but not limited to, alternative energy, energy efficiency and transmission, air and water purification, advanced materials, eco-friendly agriculture, transportation, manufacturing efficiency, recycling and pollution prevention.

Invesco PowerShares is leading the intelligent ETF revolution through its family of more than 100 domestic and international index-based and actively managed exchange-traded funds. With assets under management as of April 30, 2008 of approximately $13.86 billion, PowerShares ETFs trade on all of the major U.S. stock exchanges that trade ETFs. For more information, please visit us at www.invescopowershares.com.

Invesco PowerShares is a part of Invesco Ltd., a leading independent global investment management company dedicated to helping people worldwide build their financial security. By delivering the combined power of its distinctive worldwide investment management capabilities, including AIM, Atlantic Trust, Invesco, Perpetual, PowerShares, Trimark, and WL Ross, Invesco provides a comprehensive array of enduring investment solutions for retail, institutional and high-net-worth clients around the world. Operating in 20 countries, the company is currently listed on the New York Stock Exchange under the symbol IVZ. Additional information is available at www.invesco.com.

There are risks involved with investing in ETFs including possible loss of money. Shares are not actively managed and are subject to risk similar to stocks and covered call options, as well as those risks related to short selling and margin maintenance.

Small- and Medium-Sized Capitalization Company Risk Information

An investment in securities of small and medium capitalization companies involves greater risk than is customarily associated with investing in more established, larger sized companies.

Foreign Risk Information

An investment in the securities of non-U.S. issuers involves risks beyond those associated with investments in U.S. securities, including, but not limited to: greater market volatility, the availability of less reliable financial information, higher transactional and custody costs, taxation by foreign governments, decreased market liquidity, political instability, negative impact of changes in currency exchange rates or foreign governmental regulation, currency risk, fluctuation due to changes in interest rates, effects of monetary policies issued by the United States, foreign governments, central banks or supranational entities and currency controls or other national or global political economic developments, among others.

Shares are not FDIC insured, may lose value and have no bank guarantee.

Shares are not individually redeemable and owners of the shares may acquire those shares from the Fund and tender those shares for redemption to the Fund in Creation Unit aggregations only, typically consisting of 100,000 shares.

Invesco Aim Distributors, Inc. is the distributor of the PowerShares Exchange-Traded Fund Trust II.

Invesco PowerShares Capital Management LLC and Invesco Aim Distributors, Inc. are indirect, wholly owned subsidiaries of Invesco Ltd.

An investor should consider each Fund's investment objective, risks, charges and expenses carefully before investing. The prospectus contains this and other information about the Funds. For more complete information about the Funds or to obtain a prospectus, call 800.983.0903. Please read the prospectus carefully before investing.

The information in the prospectus is not complete and may be changed. The prospectus is not an offer to sell the portfolio shares, nor is the portfolio soliciting an offer to buy its shares in any jurisdiction where the offer or sale is not permitted.

Media Contacts: Kristin Sadlon Porter Novelli 212-601-8192 Email Contact Bill Conboy BC Capital Partners 303-415-2290 Email Contact