Definitive Materials Filed by Investment Companies. (497)

POWERSHARES EXCHANGE-TRADED FUND TRUST

SUPPLEMENT DATED FEBRUARY 8, 2013 TO THE STATEMENT OF
ADDITIONAL INFORMATION DATED AUGUST 31, 2012

Effective immediately, the following is added to page 61 of the Statement of Additional Information immediately following the section titled "Management—Administrator":

Payments to Financial Intermediaries. The Adviser may pay certain broker-dealers, banks and other financial intermediaries for participating in activities that are designed to make registered representatives and other professionals more knowledgeable about exchange traded products, including the Funds, or for other activities, such as participation in marketing activities and presentations, educational training programs, conferences, the development of technology platforms and reporting systems. As of February 7, 2013, the Adviser had arrangements to make payments, other than for the educational programs and marketing activities described above, only to Charles Schwab & Co., Inc. ("Schwab"). Pursuant to the arrangement with Schwab, Schwab has agreed to promote select exchange-traded funds advised by the Adviser to Schwab's customers and not to charge certain of its customers any commissions when those customers purchase or sell shares of those funds. Payments to a broker-dealer or intermediary may create potential conflicts of interest between the broker-dealer or intermediary and its clients. These amounts are paid by the Adviser from its own resources and not from the assets of the Funds.

P-PS-SAI SUP-5 020813

Please Retain This Supplement For Future Reference.

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