Fund Description: Invesco Cleantech ETF, formerly PowerShares CleanTech Portfolio, is an exchange-traded index fund or Index ETF which is a separate portfolio of the Invesco Exchange-Traded Fund Trust, formerly PowerShares Exchange-Traded Fund Trust, an open-end investment management company. INVESTMENT OBJECTIVE: The Invesco Cleantech ETF seeks investment results that correspond generally to the price and yield (before the Fund's fees and expenses) of an equity index called the Cleantech Index. INDEX DESCRIPTION: The Cleantech Index is an equally weighted index currently comprised of 75 publicly-traded companies engaged in the cleantech industry. A company is considered to be a cleantech company if it produces any knowledge-based product or service that improves operation, performance, productivity or efficiency, while reducing costs, inputs, energy consumption, waste or pollution. Cleantech companies produce knowledge-based products or services in a variety of areas, including agriculture and nutrition, air quality, enabling technologies, environmental technologies, material and nano-technology, materials recovery and recycling, transportation and logistics, and water purification and management. Stocks will be selected by Cleantech Capital Indices LLC (the "Index Provider"). In tracking the Index, it is anticipated that a portion of the stocks in the Fund's portfolio will be small and medium capitalization stocks. Changes to the Index composition typically take effect after the close of trading on the next to last business day of each calendar quarter month. FUND STRATEGY: The Fund will normally invest at least 80% of its total assets in common stocks of cleantech companies. The Fund will normally invest at least 90% of its total assets in common stocks that comprise the Cleantech Index. The Fund, using an "indexing" investment approach, attempts to replicate, before fees and expenses, the performance of the Index. The Adviser seeks correlation over time of 0.95 or better between the Fund's performance and the performance of the Index; a figure of 1.00 would represent perfect correlation. The Fund generally will invest in all of the securities comprising the Index in proportion to their weightings in the Index. However, under various circumstances, it may not be possible or practicable to purchase all of those securities in those weightings. In those circumstances, the Fund may purchase a sample of securities in the Index as a whole. There may also be instances in which the Adviser may choose to overweight another security in the Index, purchase securities not in the Index which the Adviser believes are appropriate to substitute for certain securities in the Index or utilize various combinations of other available investment techniques, in seeking to track the Index. The Fund may sell securities that are represented in the Index in anticipation of their removal from the Index or purchase securities not represented in the Index in anticipation of their addition to the Index. FUND MANAGEMENT: Invesco Capital Management LLC serves as the investment adviser to the Fund.