PXI Invesco ETF Trust Invesco Dorsey Wright Energy Momentum ETF

Invesco PowerShares Capital Management LLC, a leading provider of exchange-traded funds (ETFs), announced today the listing of the PowerShares Global Progressive Transportation Portfolio. The new portfolio will begin trading on Sept. 18, 2008, on the Nasdaq Stock Market.

-- PTRP - PowerShares Global Progressive Transportation Portfolio

"Improving the efficiency of moving people and goods worldwide through reduced fuel consumption and shortened transit times are just a few of the important issues progressive transportation companies are working to address," said Bruce Bond, president and CEO of Invesco PowerShares. "We believe the PowerShares Progressive Transportation ETF seeks to provide investors a convenient way to invest in a global portfolio of companies focused on sustainable transportation through the benefit-rich ETF structure."

The World Business Council for Sustainable Development defines sustainable transportation as the ability to meet the needs of society to move freely, gain access, communicate, trade and establish relationships without sacrificing other essential human or ecological values today or in the future.

The PowerShares Global Progressive Transportation Portfolio (PTRP) is based on the Wilder NASDAQ OMX Global Energy Efficient Transport Index(SM). The index tracks the performance of a global group of companies focused on technologies for utilization of greener, more efficient sources of energy to initiate a societal transition toward cleaner, less costly and more efficient means of transportation. The Index includes companies listed on global stock exchanges involved in four core focus areas: alternative vehicles; rail and subway systems; sea, land, air and intermodal; and transport innovation. The Index is rebalanced quarterly using a modified market capitalization-weighting methodology with consideration to trading volume and float-adjusted market capitalization minimums.

Index Weightings as of June 30, 2008.

                 Index
                Weight
Country            (%)
United States    42.18
Italy             5.14
Chile             2.78
Canada           10.08
Japan             7.32
Taiwan            7.83
Germany           4.94
China             2.27
Mexico            2.67
Brazil            2.67
Greece            2.67
France            4.73
United Kingdom    2.36
Malaysia          2.36

Source: The NASDAQ OMX Group, Inc., based on hypothetical Index information
as of June 30, 2008.

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 June 30, 2008, of approximately $13.95 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. Ordinary brokerage commissions apply.

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

Small and Medium-Sized Company Risk Information

An investment in securities of small and medium-sized 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.

Non-Diversified Fund Risk Information

The Fund is considered non-diversified and can invest a greater portion of assets in securities of individual issuers than a diversified fund. As a result, changes in the market value of a single investment could cause greater fluctuations in share price than would occur in a diversified fund.

Industry and Sector Risk

When a Fund is focused in a specific industry or sector, it presents greater risks than if it were broadly diversified over numerous industries and sectors of the economy. There are additional risks associated with investing in companies involved in the transportation industry. Please read the prospectus for a summary of these risks pertaining to each industry or sector.

PowerShares� is a registered trademark of Invesco PowerShares Capital Management LLC. Invesco PowerShares Capital Management LLC and Invesco Aim Distributors, Inc. are indirect, wholly owned subsidiaries of Invesco Ltd. NASDAQ�, OMX(TM) and Wilder NASDAQ OMX Global Sustainable Transportation Index(SM) are trade/service marks of The NASDAQ OMX Group, Inc. (which with its affiliates is referred to as the "Corporations") and are licensed for use by Invesco PowerShares. The Fund has not been passed on by the Corporations as to their legality or suitability. The Fund is not issued, endorsed, sold or promoted by the Corporations. The Corporations make no warranties and bear no liability with respect To The Fund.

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.

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

The information in the prospectus is not complete and may be changed. The Funds may not sell their Shares until the registration statement filed with the Securities and Exchange Commission is effective. The prospectus is not an offer to sell the portfolios' Shares, nor are the portfolios soliciting an offer to buy their 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