Fund Description: Invesco WilderHill Clean Energy ETF, formerly PowerShares WilderHill Clean Energy 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 WilderHill Clean Energy 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 WilderHill Clean Energy Index (AMEX ticker symbols: Index: ECO, Intraday NAV: BWH), published under the ticker symbol ECO, a product of WilderShares LLC. The Fund will normally invest at least 80% of its total assets in common stocks of companies engaged in the business of the advancement of cleaner energy and conservation. The Fund will normally invest at least 90% of its total assets in common stocks that comprise the Clean Energy Index. The Adviser will seek to match the performance of the Clean Energy Index. The Clean Energy Index is comprised of companies which are publicly traded in the United States and engaged in a business or businesses which the Clean Energy Index Selection Committee believes stand to benefit substantially from a societal transition toward use of cleaner energy and conservation. Stocks are selected based on expert evaluation by the Clean Energy Index Selection Committee. The list of component stocks is reviewed quarterly, or more often, at the discretion of the Selection Committee. Companies selected for the Clean Energy Index include those that focus on technologies for utilization of greener, more-renewable sources of energy. These technologies include those for renewable energy harvesting or production, energy conversion, energy storage, pollution prevention and improvements in energy efficiency, power delivery, energy conservation and monitoring of energy information. FUND MANAGEMENT: Invesco Capital Management LLC serves as the investment adviser to the Fund.