Conference Calls Scheduled for Three Pioneer Investments Closed End Funds

Pioneer Investments today announced the dates and times for conference calls regarding three Closed-End Funds. The purpose of these calls is to discuss the performance of the funds year-to-date and their current positioning. The conference call will be open to the public.

The conference call schedule is as follows:

Pioneer Municipal High Income Advantage Trust (NYSE: MAV) and Pioneer Municipal High Income Trust (NYSE: MHI).

The call will be held on Wednesday, April 3, 2013 at 4:15 PM EST and can be accessed by calling (866) 823-5039. Conference ID # 2826472. The call will be available on replay for seven days following the call at (888) 203-1112. Conference ID # 2826472. A transcript will be posted to us.pioneerinvestments.com.

Pioneer High Income Trust (NYSE: PHT)

The call will be held on Thursday, April 4, 2013 at 4:15 PM EST and can be accessed by calling (866) 823-5039. Conference ID # 7426203. The call will be available on replay for seven days following the call at (888) 203-1112. Conference ID # 7426203. A transcript will be posted to us.pioneerinvestments.com.

Pioneer Investment Management, Inc., the investment advisor for this fund, is part of Pioneer Investment Management USA Inc., the U.S. subsidiary of Pioneer Global Asset Management S.p.A.

Closed-end funds, unlike open-end funds, are not continuously offered. There is a one-time public offering and once issued, common shares of closed-end funds are sold in the open market through a stock exchange and frequently trade at prices lower than their net asset value. Net asset value (NAV) is total assets less total liabilities divided by the number of common shares outstanding.

©2013 Pioneer Investment Management, Inc. 60 State Street Boston, MA 02109

Member of the UniCredit Banking Group, Register of Banking Groups

26537-00-0313