EXHIBIT A - TO MASTER INVESTMENT COMPANY SERVICE AGREEMENT Dated February 1, 2007 ---------------------------------------------------------------------------- Pioneer America Income Trust...Master Investment Company • April 25th, 2007 • Pioneer Equity Opportunity Fund
---------------------------------------------------------------------------- Pioneer America Income Trust ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- Pioneer Balanced Fund ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- Pioneer Bond Fund ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- Pioneer Emerging Markets Fund ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- Pioneer Equity Income Fund ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- Pioneer Equity Opportunity
