Pioneer High Income Trust (a Delaware statutory trust) Auction Market Preferred Shares ("AMPS") of Beneficial Interest [______] Shares [__]% AMPS, Series TH Liquidation Preference $25,000 per share PURCHASE AGREEMENTPioneer High Income Trust • July 25th, 2003 • New York
PIONEER HIGH INCOME TRUST ----------------------------------------------- AUCTION AGENCY AGREEMENT dated as of July 12, 2002, as amended and restated July [_], 2003Auction Agency Agreement • July 25th, 2003 • Pioneer High Income Trust • New York
