MINT announces May 2005 Distribution and Investment Update

TORONTO, May 18 /CNW/ - Middlefield Group is pleased to announce that a
distribution of $0.10 per trust unit will be payable on June 15, 2005 to MINT
Income Fund unitholders of record on May 31, 2005. MINT's total return for the
one year ending March 31, 2005, based on its net asset value, was 23.9%.

The asset class weightings for the MINT Investment Portfolio as at       
April 30, 2005 were:

<<
       -------------------------------------------------------
        Asset Class                       Portfolio Weighting
       -------------------------------------------------------
        Business Trusts                         37.8%
       -------------------------------------------------------
        Oil and Gas Royalty Trusts              24.3%
       -------------------------------------------------------
        Real Estate Investment Trusts           23.0%
       -------------------------------------------------------
        Power and Pipeline Trusts               10.9%
       -------------------------------------------------------
        Common Stocks                            3.6%
       -------------------------------------------------------
        Cash                                     0.4%
       -------------------------------------------------------

The Fund's Distribution Reinvestment Plan allows unitholders to
automatically reinvest monthly distributions in additional units of the Fund.
This feature provides unitholders with an excellent opportunity to benefit
from compounding by investing distributions at a high reinvestment rate.
Please contact your investment advisor or Middlefield to enroll in the Plan.

The trust units trade on the Toronto Stock Exchange under the symbol
MID.UN.

This press release contains forward-looking information. Actual future
results may differ materially. The risks, uncertainties and other factors that
could influence actual results are described in MINT's annual report to
unitholders and other documents filed with regulatory authorities.
 >>