AMENDMENT NO. 1 TO MASTER INVESTMENT ADVISORY AGREEMENT

AMENDMENT NO. 1

TO

MASTER INVESTMENT ADVISORY AGREEMENT

This Amendment dated as of October 15, 2004, amends the Master Investment Advisory Agreement (the “Agreement”), dated November 25, 2003, between AIM Treasurer’s Series Trust, a Delaware statutory trust, and A I M Advisors, Inc., a Delaware corporation.

W I T N E S S E T H:

WHEREAS, the parties desire to amend the Agreement to change the name of INVESCO Treasurer’s Money Market Reserve Fund to Premier Portfolio and INVESCO Treasurer’s Tax-Exempt Reserve Fund to Premier Tax-Exempt Portfolio;

NOW, THEREFORE, the parties agree as follows;

1. Appendix A and Appendix B to the Agreement are hereby deleted in their entirety and replaced with the following:

“APPENDIX A

FUNDS AND EFFECTIVE DATES

Name of Fund		Effective Date of Advisory Agreement
Premier Portfolio		November 25, 2003
Premier Tax-Exempt Portfolio		November 25, 0000

XXXXXXXX X

COMPENSATION TO THE ADVISOR

The Trust shall pay the Advisor, out of the assets of a Fund, as full compensation for all services rendered, an advisory fee for such Fund set forth below. Such fee shall be calculated by applying the following annual rates to the average daily net assets of such Fund for the calendar year computed in the manner used for the determination of the net asset value of shares of such Fund.

Premier Portfolio

Premier Tax-Exempt Portfolio

Net Assets		Annual Rate
All Assets		0.25	%”

2. In all other respects, the Agreement is hereby confirmed and remains in full force and effect.

2

IN WITNESS WHEREOF, the parties have caused this Agreement to be executed by their respective officers on the date first written above.

						AIM TREASURER’S SERIES TRUST (a Delaware statutory trust)
Attest:		/s/    XXXX XXXX				By:		/S/    XXXXXX X. XXXXXX
		Assistant Secretary						Xxxxxx X. Xxxxxx
								President

(SEAL)

						A I M ADVISORS, INC.
Attest:		/s/    XXXX XXXX				By:		/S/    XXXX X. XXXXXXXXXX
		Assistant Secretary						Xxxx X. Xxxxxxxxxx
								President

(SEAL)

3