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 recent performance of MAV and 
      MHI. The conference call will be open to the public.
    
    
      The call will be held on July 17, 2008 at 4:00 PM EDT, and can be 
      accessed by calling 866-360-7030. Conference ID # 54081136. The call 
      will be available on replay for seven days following the call at 
      800-642-1687. Conference ID # 54081136. 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 $326 billion in assets under management 
      as of May 31, 2008, including approximately $75 billion managed in the 
      U.S.
    
    
      
        
          Shareholder Inquiries:
        
        
           
        
        
          
            Please contact your financial advisor or visit pioneerinvestments.com
          
        
      
      
        
        
        
        
        
           
        
      
      
        
          Broker/Advisor Inquiries Please Contact:
        
        
        
        
          800-622-9876
        
      
      
        
        
        
        
        
           
        
      
      
        
          Media Inquiries Please Contact:
        
        
        
        
          Geoff Smith
        
      
      
        
        
        
        
        
          Corporate Communications
        
      
      
        
        
        
        
        
          617-422-4727
        
      
    
    
      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 UniCredit Banking Group, Register of Banking Groups