<PAGE> 1
CLASS A, B AND C SHARES
AIM DEVELOPING MARKETS FUND
Supplement dated September 16, 1999
to the Prospectus dated March 1, 1999, as revised August 16, 1999
The paragraph under the section "Redemption Fees" on Page A-4 of the Prospectus
is deleted in its entirety and replaced with the following:
"Generally, we will not charge you any fees to redeem your shares.
However, if you acquired Class A shares of AIM Developing Markets
Fund in connection with the reorganization of AIM Eastern Europe
Fund, you will be charged a redemption fee of 2% of the net asset
value of those shares, which will be paid to AIM Developing Markets
Fund, if you redeem your shares within the first year after the
reorganization. Your broker or financial consultant may charge
service fees for handling redemption transactions. Your shares also
may be subject to a contingent deferred sales charge (CDSC)."
