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                              AIM INVESTMENT FUNDS
                              AMENDED AND RESTATED
                             SUB-ADVISORY CONTRACT
                                    BETWEEN
                              A I M ADVISORS, INC.
                                      AND
                        INVESCO ASSET MANAGEMENT LIMITED

         Contract made as of February 12, 1999, between A I M Advisors, Inc., a
Delaware corporation ("Adviser"), and INVESCO Asset Management Limited, a
company organized under the laws of England and Wales ("Sub-Adviser").

         WHEREAS Adviser has entered into an Investment Management and
Administration Contract with AIM Investment Funds ("Company"), an open-end
management investment company registered under the Investment Company Act of
1940, as amended ("1940 Act"), with respect to AIM Latin American Growth Fund,
AIM Emerging Markets Fund, AIM Global Growth & Income Fund, AIM Global
Government Income Fund and AIM Developing Markets Fund (each a "Fund" and
collectively, the "Funds"), each Fund being a series of the Company's shares of
beneficial interest; and

         WHEREAS Adviser previously retained Sub-Adviser as investment
sub-adviser in order to furnish certain advisory services to the Funds, and
Adviser and Sub-Adviser entered into a Sub-Advisory Contract dated as of
December 14, 1998 with respect to the Funds ("Sub-Advisory Contract); and

         WHEREAS Adviser and Sub-Adviser desire to amend and restate the
Sub-Advisory Contract to remove AIM Emerging Markets Fund from the list of
Funds since it ceased operations as of February 12, 1999;

         NOW THEREFORE, in consideration of the promises and the mutual
covenants herein contained, it is agreed between the parties hereto as follows:

1. Appointment. Adviser hereby appoints Sub-Adviser as sub-adviser of each
Fund for the period and on the terms set forth in this Contract. Sub-Adviser
accepts such appointment and agrees to render the services herein set forth,
for the compensation herein provided.

2. Duties as Sub-Adviser.

         (a) Subject to the supervision of the Company's Board of Trustees
("Board") and Adviser, the Sub-Adviser will provide a continuous investment
program for each Fund, including investment research and management, with
respect to all securities and investments and cash equivalents of the Fund. The
Sub-Adviser will determine from time to time what securities and other
investments will be purchased, retained or sold by each Fund, and the brokers
and dealers through whom trades will be executed.


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         (b) The Sub-Adviser agrees that, in placing orders with brokers and
dealers, it will attempt to obtain the best net result in terms of price and
execution. Consistent with this obligation, the Sub-Adviser may, in its
discretion, purchase and sell portfolio securities from and to brokers and
dealers who sell shares of the Funds or provide the Funds, Adviser's other
clients, or Sub-Adviser's other clients with research, analysis, advice and
similar services. The Sub-Adviser may pay to brokers and dealers, in return for
such research and analysis, a higher commission or spread than may be charged
by other brokers and dealers, subject to the Sub-Adviser determining in good
faith that such commission or spread is reasonable in terms either of the
particular transaction or of the overall responsibility of the Adviser and the
Sub-Adviser to the Funds and their other clients and that the total commissions
or spreads paid by each Fund will be reasonable in relation to the benefits to
the Fund over the long term. In no instance will portfolio securities be
purchased from or sold to the Sub-Adviser, or any affiliated person thereof,
except in accordance with the federal securities laws and the rules and
regulations thereunder and any exemptive orders currently in effect. Whenever
the Sub-Adviser simultaneously places orders to purchase or sell the same
security on behalf of a Fund and one or more other accounts advised by the
Sub-Adviser, such orders will be allocated as to price and amount among all
such accounts in a manner believed to be equitable to each account.

         (c) The Sub-Adviser will maintain all books and records with respect
to the securities transactions of the Funds, and will furnish the Board and
Adviser with such periodic and special reports as the Board or Adviser
reasonably may request. In compliance with the requirements of Rule 31a-3 under
the 1940 Act, the Sub-Adviser hereby agrees that all records which it maintains
for the Company are the property of the Company, agrees to preserve for the
periods prescribed by Rule 31a-2 under the 1940 Act any records which it
maintains for the Company and which are required to be maintained by Rule 31a-1
under the 1940 Act, and further agrees to surrender promptly to the Company any
records which it maintains for the Company upon request by the Company.

3. Further Duties. In all matters relating to the performance of this
Contract, Sub-Adviser will act in conformity with the Agreement and Declaration
of Trust, By-Laws and Registration Statement of the Company and with the
instructions and directions of the Board and will comply with the requirements
of the 1940 Act, the rules thereunder, and all other applicable federal and
state laws and regulations.

4. Services Not Exclusive. The services furnished by Sub-Adviser hereunder are
not to be deemed exclusive and Sub-Adviser shall be free to furnish similar
services to others so long as its services under this Contract are not impaired
thereby. Nothing in this Contract shall limit or restrict the right of any
director, officer or employee of Sub-Adviser, who may also be a Trustee,
officer or employee of the Company, to engage in any other business or to
devote his or her time and attention in part to the management or other aspects
of any other business, whether of a similar nature or a dissimilar nature.

5. Expenses.


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         (a) During the term of this Contract, each Fund will bear all
expenses, not specifically assumed by Adviser and Sub-Adviser, incurred in its
operations and the offering of its shares.

         (b) Expenses borne by each Fund will include but not be limited to the
following: (i) all direct charges relating to the purchase and sale of
portfolio securities, including the cost (including brokerage commissions, if
any) of securities purchased or sold by the Fund and any losses incurred in
connection therewith; (ii) fees payable to and expenses incurred on behalf of
the Fund by Sub-Adviser under this Contract; (iii) investment consulting fees
and related costs; (iv) expenses of organizing the Company and the Fund; (v)
expenses of preparing and filing reports and other documents with governmental
and regulatory agencies; (vi) filing fees and expenses relating to the
registration and qualification of the Fund's shares and the Company under
federal and/or state securities laws and maintaining such registrations and
qualifications; (vii) costs incurred in connection with the issuance, sale or
repurchase of the Fund's shares of beneficial interest; (viii) fees and
salaries payable to the Company's Trustees who are not parties to this Contract
or interested persons of any such party ("Independent Trustees"); (ix) all
expenses incurred in connection with the Independent Trustees' services,
including travel expenses; (x) taxes (including any income or franchise taxes)
and governmental fees; (xi) costs of any liability, uncollectible items of
deposit and other insurance and fidelity bonds; (xii) any costs, expenses or
losses arising out of a liability of or claim for damages or other relief
asserted against the Company or the Fund for violation of any law; (xiii)
interest charges; (xiv) legal, accounting and auditing expenses, including
legal fees of special counsel for the Independent Trustees; (xv) charges of
custodians, transfer agents, pricing agents and other agents; (xvi) expenses of
disbursing dividends and distributions; (xvii) costs of preparing share
certificates; (xviii) expenses of setting in type, printing and mailing
prospectuses and supplements thereto, statements of additional information,
reports, notices and proxy materials for existing shareholders; (xix) any
extraordinary expenses (including fees and disbursements of counsel, costs of
actions, suits or proceedings to which the Company is a party and the expenses
the Company may incur as a result of its legal obligation to provide
indemnification to its officers, Trustees, employees and agents) incurred by
the Company; (xx) fees, voluntary assessments and other expenses incurred in
connection with membership in investment company organizations; (xxi) costs of
mailing and tabulating proxies and costs of meetings of shareholders, the Board
and any committees thereof; (xxii) the cost of investment company literature
and other publications provided by the Company to its Trustees and officers;
and (xxiii) costs of mailing, stationery and communications equipment.

         (c) The payment or assumption by Sub-Adviser of any expense of the
Company or any Fund that Sub-Adviser is not required by this Contract to pay or
assume shall not obligate Sub-Adviser to pay or assume the same or any similar
expense of the Company or any Fund on any subsequent occasion.

6. Compensation.

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         (a) For the services provided to a Fund under this Contract, Adviser
will pay Sub-Adviser a fee, computed weekly and paid monthly, as set forth in
Appendix A hereto.

         (b) For the services provided under this Contract to each Fund as
hereafter may be established, Adviser will pay to Sub-Adviser a fee in an
amount to be agreed upon in a written Appendix to this Contract executed by
Adviser and by Sub-Adviser.

         (c) The fee shall be computed weekly and paid monthly to Sub-Adviser
on or before the last business day of the next succeeding calendar month.

         (d) If this Contract becomes effective or terminates before the end of
any month, the fee for the period from the effective date to the end of the
month or from the beginning of such month to the date of termination, as the
case may be, shall be prorated according to the proportion which such period
bears to the full month in which such effectiveness or termination occurs.

7. Limitation of Liability of Sub-Adviser and Indemnification. Sub-Adviser
shall not be liable for any costs or liabilities arising from any error of
judgment or mistake of law or any loss suffered by the Fund or the Company in
connection with the matters to which this Contract relates except a loss
resulting from willful misfeasance, bad faith or gross negligence on the part
of Sub-Adviser in the performance by Sub-Adviser of its duties or from reckless
disregard by Sub-Adviser of its obligations and duties under this Contract. Any
person, even though also an officer, partner, employee, or agent of
Sub-Adviser, who may be or become a Trustee, officer, employee or agent of the
Company, shall be deemed, when rendering services to a Fund or the Company or
acting with respect to any business of a Fund or the Company to be rendering
such service to or acting solely for the Fund or the Company and not as an
officer, partner, employee, or agent or one under the control or direction of
Sub-Adviser even though paid by it.

8. Duration and Termination.

         (a) This Contract shall become effective upon the date hereabove
written, provided that this Contract shall not take effect with respect to any
Fund unless it has first been approved (i) by a vote of a majority of the
Independent Trustees, cast in person at a meeting called for the purpose of
voting on such approval, and (ii) by vote of a majority of that Fund's
outstanding voting securities, when required by the 1940 Act.

         (b) Unless sooner terminated as provided herein, this Contract shall
continue in effect for two years from the above written date. Thereafter, if
not terminated, with respect to each Fund, this Contract shall continue
automatically for successive periods not to exceed twelve months each, provided
that such continuance is specifically approved at least annually (i) by a vote
of a majority of the Independent Trustees, cast in person at a meeting called
for the purpose of voting on such approval, and (ii) by the Board or by vote of
a majority of the outstanding voting securities of that Fund.


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         (c) Notwithstanding the foregoing, with respect to any Fund this
Contract may be terminated at any time, without the payment of any penalty, by
vote of the Board or by a vote of a majority of the outstanding voting
securities of the Fund on sixty days' written notice to Sub-Adviser or by
Sub-Adviser at any time, without the payment of any penalty, on sixty days'
written notice to the Company. Termination of this Contract with respect to one
Fund shall not affect the continued effectiveness of this Contract with respect
to any other Fund. This Contract will automatically terminate in the event of
its assignment.

9. Amendment. No provision of this Contract may be changed, waived, discharged
or terminated orally, but only by an instrument in writing signed by the party
against which enforcement of the change, waiver, discharge or termination is
sought, and no amendment of this Contract shall be effective until approved by
vote of a majority of the Fund's outstanding voting securities, when required
by the 1940 Act.

10. Governing Law. This Contract shall be construed in accordance with the
laws of the State of Delaware (without regard to Delaware conflict or choice of
law provisions) and the 1940 Act. To the extent that the applicable laws of the
State of Delaware conflict with the applicable provisions of the 1940 Act, the
latter shall control.

11. Miscellaneous. The captions in this Contract are included for convenience
of reference only and in no way define or delimit any of the provisions hereof
or otherwise affect their construction or effect. If any provision of this
Contract shall be held or made invalid by a court decision, statute, rule or
otherwise, the remainder of this Contract shall not be affected thereby. This
Contract shall be binding upon and shall inure to the benefit of the parties
hereto and their respective successors. As used in this Contract, the terms
"majority of the outstanding voting securities," "interested person,"
"assignment," "broker," "dealer," "investment adviser," "national securities
exchange," "net assets," "prospectus," "sale," "sell" and "security" shall have
the same meaning as such terms have in the 1940 Act, subject to such exemption
as may be granted by the Securities and Exchange Commission by any rule,
regulation or order. Where the effect of a requirement of the 1940 Act
reflected in any provision of this Contract is made less restrictive by a rule,
regulation or order of the Securities and Exchange Commission, whether of
special or general application, such provision shall be deemed to incorporate
the effect of such rule, regulation or order.


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         IN WITNESS WHEREOF, the parties hereto have caused this instrument to
be executed by their officers designated as of the day and year first above
written.

                                             A I M ADVISORS, INC.
Attest: [ILLEGIBLE]
        -------------------------            By: /s/ ROBERT H. GRAHAM
                                                 ---------------------------
                                             Name:  Robert H. Graham
                                             Title:  President

                                             INVESCO ASSET MANAGEMENT LIMITED

Attest: [ILLEGIBLE]                          By: /s/ J. LAMBOURNE
        -------------------------              -----------------------------
                                                 Name:   J. Lambourne
                                                 Title:  Director


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                                   APPENDIX A
                                       TO
                              AIM INVESTMENT FUNDS
                              AMENDED AND RESTATED
                             SUB-ADVISORY CONTRACT
                                    BETWEEN
                              A I M ADVISORS, INC.
                                      AND
                        INVESCO ASSET MANAGEMENT LIMITED


      AIM LATIN AMERICAN GROWTH FUND, AIM GLOBAL GROWTH & INCOME FUND, AIM
                            DEVELOPING MARKETS FUND





NET ASSETS                                                         ANNUAL RATE
- ----------                                                         -----------
                                                                
First $ 500 million................................................   0.39%
Next  $ 500 million................................................   0.38%
Next  $ 500 million................................................   0.37%
On amounts thereafter..............................................   0.36%


                       AIM GLOBAL GOVERNMENT INCOME FUND




NET ASSETS                                                         ANNUAL RATE
- ----------                                                         -----------
                                                                   
First $ 500 million................................................   0.29%
Next  $ 1 billion..................................................   0.28%
Next  $ 1 billion..................................................   0.27%
On amounts thereafter..............................................   0.26%



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