Conference Call on Pioneer Municipal High Income Advantage Trust (NYSE: MAV) and Pioneer Municipal High Income Trust (NYSE: MHI)

  
    
  
  
    
      Pioneer Investments today announced that it will hold a conference call 
      regarding Pioneer Municipal High Income Advantage Trust (NYSE: MAV) and 
      Pioneer Municipal High Income Trust (NYSE: MHI). Portfolio Manager David 
      Eurkus will be on the call to discuss the most recent performance of MAV 
      and MHI and provide some of his insights on the municipal bond market. 
      The conference call will be open to the public.
    
    
      The call will be held on March 5, 2008 at 4:00 PM EST, and can be 
      accessed by calling [phone]. Conference ID #36584336. The call 
      will be available on replay for seven days following the call at (800) 
      642-1687. Conference ID #36584336. A transcript will be posted to pioneerinvestments.com.
    
    
      Pioneer Investment Management, Inc., the investment advisor for these 
      funds, is part of Pioneer Investment Management USA Inc., the U.S. 
      subsidiary of Pioneer Global Asset Management S.p.A. Pioneer Global and 
      its affiliates had approximately $312.0 billion in assets under 
      management as of December 31, 2007, including approximately $79 billion 
      managed in the U.S.
    
    
      Closed-end funds, unlike open-end funds, are not continuously 
      offered. There is a one-time public offering and once issued, 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.
    
    
      Please consider the fund's investment objectives, risks, charges and 
      expenses carefully before investing. The prospectus contains this 
      and other information about the fund and should be read carefully before 
      you invest or send money. To obtain a prospectus and for other 
      information on Pioneer funds, contact your advisor or visit our web site: 
      pioneerinvestments.com.
    
    
      Pioneer Funds Distributor, Inc., Member SIPC
    
    
      ©2008 Pioneer Investment Management, Inc. 60 
      State Street Boston, MA 02109
    
    
      Member of the UniCredito Italiano Banking Group, Register of Banking 
      Groups