GUARANTEE AGREEMENT


                                     Between


                            Mississippi Power Company

                                 (as Guarantor)


                                       and


                              Bankers Trust Company

                                  (as Trustee)


                                   dated as of


                                  March 1, 2002






                                          CROSS-REFERENCE TABLE1



Section of Trust Indenture Act                                                                           Section of
of 1939, as amended                                                                             Guarantee Agreement


                                                                                                        
310(a)......................................................................................................4.01(a)
310(b)................................................................................................4.01(c), 2.08
310(c).................................................................................................Inapplicable
311(a)......................................................................................................2.02(b)
311(b)......................................................................................................2.02(b)
311(c).................................................................................................Inapplicable
312(a)......................................................................................................2.02(a)
312(b)......................................................................................................2.02(b)
313............................................................................................................2.03
314(a).........................................................................................................2.04
314(b).................................................................................................Inapplicable
314(c).........................................................................................................2.05
314(d).................................................................................................Inapplicable
314(e).............................................................................................1.01, 2.05, 3.02
314(f)...................................................................................................2.01, 3.02
315(a)......................................................................................................3.01(d)
315(b).........................................................................................................2.07
315(c).........................................................................................................3.01
315(d)......................................................................................................3.01(d)
315(e).................................................................................................Inapplicable
316(a)................................................................................................5.04(i), 2.06
316(b).........................................................................................................5.03
316(c).........................................................................................................2.02
317(a).................................................................................................Inapplicable
317(b).................................................................................................Inapplicable
318(a)......................................................................................................2.01(b)
318(b).........................................................................................................2.01
318(c)......................................................................................................2.01(a)









                                TABLE OF CONTENTS

                                                                                                               Page


                                                                                                              
ARTICLE I.........................................................................................................1

         SECTION 1.01.              Definitions...................................................................1
                                    -----------


ARTICLE II........................................................................................................3

         SECTION 2.01.              Trust Indenture Act; Application..............................................3
                                    --------------------------------

         SECTION 2.02.              Lists of Holders of Securities................................................4
                                    ------------------------------

         SECTION 2.03.              Reports by the Trustee........................................................4
                                    ----------------------

         SECTION 2.04.              Periodic Reports to Trustee...................................................4
                                    ---------------------------

         SECTION 2.05.              Evidence of Compliance with Conditions Precedent..............................4
                                    ------------------------------------------------

         SECTION 2.06.              Events of Default; Waiver.....................................................4
                                    -------------------------

         SECTION 2.07.              Event of Default; Notice......................................................4
                                    ------------------------

         SECTION 2.08.              Conflicting Interests.........................................................5
                                    ---------------------


ARTICLE III.......................................................................................................5

         SECTION 3.01.              Powers and Duties of the Trustee..............................................5
                                    --------------------------------

         SECTION 3.02.              Certain Rights of Trustee.....................................................6
                                    -------------------------

         SECTION 3.03.              Compensation; Fees; Indemnity.................................................8
                                    -----------------------------


ARTICLE IV........................................................................................................8

         SECTION 4.01.              Trustee; Eligibility..........................................................8
                                    --------------------

         SECTION 4.02.              Appointment, Removal and Resignation of Trustee...............................9
                                    -----------------------------------------------


ARTICLE V.........................................................................................................9

         SECTION 5.01.              Guarantee.....................................................................9
                                    ---------

         SECTION 5.02.              Waiver of Notice and Demand...................................................9
                                    ---------------------------

         SECTION 5.03.              Obligations Not Affected.....................................................10
                                    ------------------------

         SECTION 5.04.              Rights of Holders............................................................10
                                    -----------------

         SECTION 5.05.              Guarantee of Payment.........................................................11
                                    --------------------

         SECTION 5.06.              Subrogation..................................................................11
                                    -----------

         SECTION 5.07.              Independent Obligations......................................................11
                                    -----------------------


ARTICLE VI.......................................................................................................12

         SECTION 6.01.              Subordination................................................................12
                                    -------------


ARTICLE VII......................................................................................................12

         SECTION 7.01.              Termination..................................................................12
                                    -----------


ARTICLE VIII.....................................................................................................12

         SECTION 8.01.              Successors and Assigns.......................................................12
                                    ----------------------

         SECTION 8.02.              Amendments...................................................................12
                                    ----------

         SECTION 8.03.              Notices......................................................................12
                                    -------

         SECTION 8.04.              Benefit......................................................................13
                                    -------

         SECTION 8.05.              Interpretation...............................................................13
                                    --------------

         SECTION 8.06.              Governing Law................................................................14
                                    -------------








                               GUARANTEE AGREEMENT

         This GUARANTEE AGREEMENT ("Guarantee Agreement"), dated as of March 1,
2002, between MISSISSIPPI POWER COMPANY, a Mississippi corporation (the
"Guarantor"), and BANKERS TRUST COMPANY, a New York banking corporation, as
trustee (the "Trustee"), for the benefit of the Holders (as defined herein) from
time to time of the Preferred Securities (as defined herein) of MISSISSIPPI
POWER CAPITAL TRUST II, a Delaware statutory business trust (the "Trust").

         WHEREAS, pursuant to an Amended and Restated Trust Agreement (the
"Trust Agreement"), dated as of March 1, 2002, among the Trustee, the other
Trustees named therein, Mississippi Power Company, as Depositor, and the holders
of undivided beneficial interests in the assets of the Trust, the Trust is
issuing as of March 22, 2002, $35,000,000 aggregate liquidation amount of its
7.20% Trust Originated Preferred Securities (the "Preferred Securities")
representing preferred undivided beneficial interests in the assets of the Trust
and having the terms set forth in the Trust Agreement;

         WHEREAS, the Preferred Securities will be issued by the Trust and the
proceeds thereof will be used to purchase the Junior Subordinated Notes (as
defined in the Trust Agreement) of the Guarantor, which will be held by the
Trust as trust assets; and

         WHEREAS, as incentive for the Holders to purchase the Preferred
Securities, the Guarantor desires to irrevocably and unconditionally agree, to
the extent set forth herein, to pay to the Holders the Guarantee Payments (as
defined herein) and to make certain other payments on the terms and conditions
set forth herein.

         NOW, THEREFORE, in consideration of the payment for Preferred
Securities by each Holder (as defined herein) thereof, which payment the
Guarantor hereby agrees shall benefit the Guarantor, the Guarantor executes and
delivers this Guarantee Agreement for the benefit of the Holders from time to
time of the Preferred Securities.

                                    ARTICLE I
                                   DEFINITIONS

         SECTION 1.01......Definitions. As used in this Guarantee Agreement, the
terms set forth below shall, unless the context otherwise requires, have the
following meanings. Capitalized or otherwise defined terms used but not
otherwise defined herein shall have the meanings assigned to such terms in the
Trust Agreement as in effect on the date hereof.

         "Affiliate" of any specified Person means any other Person directly or
indirectly controlling or controlled by or under direct or indirect common
control with such specified Person. For the purposes of this definition,
"control" when used with respect to any specified Person means the power to
direct the management and policies of such Person, directly or indirectly,
whether through the ownership of voting securities, by contract or otherwise;
and the terms "controlling" and "controlled" have meanings correlative to the
foregoing.

         "Common Securities" means the securities representing common undivided
beneficial interests in the assets of the Trust.

         "Event of Default" means a failure by the Guarantor to perform any of
its payment obligations under this Guarantee Agreement.

         "Guarantee Payments" shall mean the following payments or
distributions, without duplication, with respect to the Preferred Securities, to
the extent not paid or made by or on behalf of the Trust: (i) any accrued and
unpaid distributions that are required to be paid on such Preferred Securities
but if and only if and to the extent the Trust has funds legally and immediately
available therefor to make such payment; (ii) the redemption price, including
all accrued and unpaid distributions to the date of redemption (the "Redemption
Price"), with respect to the Preferred Securities called for redemption by the
Trust but if and only if and to the extent that the Trust has funds legally and
immediately available therefor sufficient to make such payment; and (iii) upon a
voluntary or involuntary dissolution, winding-up or termination of the Trust
(other than in connection with the distribution of Junior Subordinated Notes to
the holders of Trust Securities or the redemption of all of the Preferred
Securities), the lesser of (a) the aggregate of the liquidation amount and all
accrued and unpaid distributions on the Preferred Securities to the date of
payment, to the extent the Trust has funds legally and immediately available
therefor, and (b) the amount of assets of the Trust remaining available for
distribution to Holders in liquidation of the Trust (in either case, the
"Liquidation Distribution").

         "Holder" shall mean any holder, as registered on the books and records
of the Trust, of any Preferred Securities; provided, however, that in
determining whether the holders of the requisite percentage of Preferred
Securities have given any request, notice, consent or waiver hereunder, "Holder"
shall not include the Guarantor or any Affiliate of the Guarantor.

         "Indenture" means the Subordinated Note Indenture dated as of February
1, 1997, between the Guarantor, as Subordinated Note Issuer, and Bankers Trust
Company, as trustee, as heretofore supplemented and as further supplemented by
the Second Supplemental Indenture dated as of March 22, 2002, by and between the
Guarantor and Bankers Trust Company, as trustee.

         "Majority in liquidation amount of Preferred Securities" means a vote
by Holder(s) of Preferred Securities, voting separately as a class, of more than
50% of the liquidation amount of all Preferred Securities outstanding at the
time of determination.

         "Officers' Certificate" means a certificate signed by the Chairman of
the Board, the President or a Vice President, and by the Treasurer, an Assistant
Treasurer, the Secretary or an Assistant Secretary, of the Guarantor, and
delivered to the Trustee. Any Officers' Certificate delivered with respect to
compliance with a condition or covenant provided for in this Guarantee Agreement
shall include:

                  (a)      a statement that each officer signing the Officers'
         Certificate  has  read  the covenant or condition and the definitions
         relating thereto;

                  (b)      a  brief  statement  of the  nature  and  scope  of
         the  examination  or  investigation
         undertaken by each officer in rendering the Officers' Certificate;

                  (c) a statement that each such officer has made such
         examination or investigation as, in such officer's opinion, is
         necessary to enable such officer to express an informed opinion as to
         whether or not such covenant or condition has been complied with; and

                  (d)      a  statement  as to whether,  in the opinion of each
          such  officer,  such  condition  or
         covenant has been complied with.

         "Person" means any individual, corporation, partnership, limited
liability company, joint venture, trust, unincorporated organization or
government or any agency or political subdivision thereof.

         "Responsible Officer" means, with respect to the Trustee, any managing
director, any vice president, any assistant vice president, any assistant
secretary, any assistant treasurer, or any other officer of the Corporate Trust
and Agency Group of the Trustee customarily performing functions similar to
those performed by any of the above designated officers and also means, with
respect to a particular corporate trust matter, any other officer to whom such
matter is referred because of that officer's knowledge of and familiarity with
the particular subject.

         "Successor Trustee" means a successor Trustee possessing the
qualifications to act as Trustee under Section 4.01.

         "Trust Indenture Act" means the Trust Indenture Act of 1939, as
amended.

         "Trustee" means Bankers Trust Company until a Successor Trustee has
been appointed and has accepted such appointment pursuant to the terms of this
Guarantee Agreement and thereafter means each such Successor Trustee.

                                   ARTICLE II
                               TRUST INDENTURE ACT

         SECTION 2.01......Trust Indenture Act; Application.
                           --------------------------------

         (a) This Guarantee Agreement is subject to the provisions of the Trust
Indenture Act that are required to be part of this Guarantee Agreement and
shall, to the extent applicable, be governed by such provisions; and

         (b) If and to the extent that any provision of this Guarantee Agreement
limits, qualifies or conflicts with the duties imposed by Sections 310 to 317,
inclusive, of the Trust Indenture Act, such imposed duties shall control.

         SECTION 2.02......Lists of Holders of Securities.

         (a) The Guarantor shall furnish or cause to be furnished to the Trustee
(a) semiannually, not later than June 1 and December 1 in each year, a list, in
such form as the Trustee may reasonably require, of the names and addresses of
the Holders ("List of Holders") as of a date not more than 15 days prior to the
time such list is furnished, and (b) at such other times as the Trustee may
request in writing, within 30 days after the receipt by the Guarantor of any
such request, a List of Holders as of a date not more than 15 days prior to the
time such list is furnished; provided that, the Guarantor shall not be obligated
to provide such List of Holders at any time the List of Holders does not differ
from the most recent List of Holders given to the Trustee by the Guarantor or at
any time the Trustee is the Securities Registrar under the Trust Agreement. The
Trustee may destroy any List of Holders previously given to it on receipt of a
new List of Holders.

         (b) The Trustee shall comply with its obligations under Sections
311(a), 311(b) and 312(b) of the Trust Indenture Act.

         SECTION 2.03......Reports by the Trustee. Within 60 days after May 15
of each year commencing May 15, 2002, the Trustee shall provide to the Holders
of the Preferred Securities such reports as are required by Section 313(a) of
the Trust Indenture Act, if any, in the form and in the manner provided by
Section 313 of the Trust Indenture Act. The Trustee shall also comply with the
other requirements of Section 313 of the Trust Indenture Act.

         SECTION 2.04......Periodic Reports to Trustee. The Guarantor shall
provide to the Trustee such documents, reports and information as required by
Section 314 of the Trust Indenture Act (if any) in the form, in the manner and
at the times required by Section 314 of the Trust Indenture Act, and shall
provide, within 120 days after the end of each of its fiscal years, the
compliance certificate required by Section 314(a)(4) of the Trust Indenture Act
in the form and in the manner required by such Section.

         SECTION 2.05......Evidence of Compliance with Conditions Precedent. The
Guarantor shall provide to the Trustee such evidence of compliance with any
conditions precedent, if any, provided for in this Guarantee Agreement that
relate to any of the matters set forth in Section 314(c) of the Trust Indenture
Act. Any certificate or opinion required to be given by an officer pursuant to
Section 314(c)(1) may be given in the form of an Officers' Certificate.

         SECTION 2.06......Events of Default; Waiver. The Holders of a Majority
in liquidation amount of Preferred Securities may, by vote, on behalf of all of
the Holders, waive any past Event of Default and its consequences. Upon such
waiver, any such Event of Default shall cease to exist, and any Event of Default
arising therefrom shall be deemed to have been cured, for every purpose of this
Guarantee Agreement, but no such waiver shall extend to any subsequent or other
default or Event of Default or impair any right consequent thereon.

         SECTION 2.07......Event of Default; Notice.

         (a) The Trustee shall, within 90 days after the occurrence of an Event
of Default, transmit by mail, first class postage prepaid, to the Holders,
notices of all Events of Default known to the Trustee, unless such defaults have
been cured before the giving of such notice, provided that the Trustee shall be
protected in withholding such notice if and so long as the board of directors,
the executive committee, or a trust committee of directors and/or Responsible
Officers of the Trustee in good faith determines that the withholding of such
notice is in the interests of the Holders.

         (b) The Trustee shall not be deemed to have knowledge of any Event of
Default unless the Trustee shall have received written notice, or a Responsible
Officer charged with the administration of the Trust Agreement shall have
obtained written notice, of such Event of Default.

         SECTION 2.08......Conflicting Interests. The Trust Agreement shall be
deemed to be specifically described in this Guarantee Agreement for the purposes
of clause (i) of the first proviso contained in Section 310(b) of the Trust
Indenture Act.

                                   ARTICLE III
                      POWERS, DUTIES AND RIGHTS OF TRUSTEE

         SECTION 3.01......Powers and Duties of the Trustee.

         (a) This Guarantee Agreement shall be held by the Trustee for the
benefit of the Holders, and the Trustee shall not transfer this Guarantee
Agreement to any Person except the Trustee shall assign rights hereunder to a
Holder to the extent such assignment is necessary to exercise such Holder's
rights pursuant to Section 5.04 or to a Successor Trustee upon acceptance by
such Successor Trustee of its appointment to act as Successor Trustee. The
right, title and interest of the Trustee shall automatically vest in any
Successor Trustee, and such vesting and cessation of title shall be effective
whether or not conveyancing documents have been executed and delivered pursuant
to the appointment of such Successor Trustee.

         (b) If an Event of Default has occurred and is continuing, the Trustee
shall enforce this Guarantee Agreement for the benefit of the Holders.

         (c) The Trustee, before the occurrence of any Event of Default and
after the curing or waiving of all Events of Default that may have occurred,
shall undertake to perform only such duties as are specifically set forth in
this Guarantee Agreement, and no implied covenants shall be read into this
Guarantee Agreement against the Trustee. In case an Event of Default has
occurred (that has not been cured or waived pursuant to Section 2.06), the
Trustee shall exercise such of the rights and powers vested in it by this
Guarantee Agreement, and use the same degree of care and skill in its exercise
thereof, as a prudent person would exercise or use under the circumstances in
the conduct of his or her own affairs.

         (d) No provision of this Guarantee Agreement shall be construed to
relieve the Trustee from liability for its own negligent action, its own
negligent failure to act, or its own willful misconduct, except that:

                  (i) prior to the occurrence of any Event of Default and after
         the curing or waiving of all such Events of Default that may have
         occurred:

                           (A) the duties and obligations of the Trustee shall
                  be determined solely by the express provisions of this
                  Guarantee Agreement, and the Trustee shall not be liable
                  except for the performance of such duties and obligations as
                  are specifically set forth in this Guarantee Agreement; and

                           (B) in the absence of bad faith on the part of the
                  Trustee, the Trustee may conclusively rely, as to the truth of
                  the statements and the correctness of the opinions expressed
                  therein, upon any certificates or opinions furnished to the
                  Trustee and conforming to the requirements of this Guarantee
                  Agreement; but in the case of any such certificates or
                  opinions that by any provision hereof are specifically
                  required to be furnished to the Trustee, the Trustee shall be
                  under a duty to examine the same to determine whether or not
                  they conform to the requirements of this Guarantee Agreement;

                  (ii) the Trustee shall not be liable for any error of judgment
         made in good faith by a Responsible Officer of the Trustee, unless it
         shall be proved that the Trustee was negligent in ascertaining the
         pertinent facts upon which such judgment was made;

                  (iii) the Trustee shall not be liable with respect to any
         action taken or omitted to be taken by it in good faith in accordance
         with the direction of the Holders of a Majority in liquidation amount
         of the Preferred Securities relating to the time, method and place of
         conducting any proceeding for any remedy available to the Trustee, or
         exercising any trust or power conferred upon the Trustee under this
         Guarantee Agreement; and

                  (iv) no provision of this Guarantee Agreement shall require
         the Trustee to expend or risk its own funds or otherwise incur personal
         financial liability in the performance of any of its duties or in the
         exercise of any of its rights or powers, if the Trustee shall have
         reasonable grounds for believing that the repayment of such funds or
         liability is not reasonably assured to it under the terms of this
         Guarantee Agreement or adequate indemnity against such risk or
         liability is not reasonably assured to it.

         SECTION 3.02.     Certain Rights of Trustee.
                           -------------------------

         (a)      Subject to the provisions of Section 3.01:

                  (i) the Trustee may conclusively rely and shall be fully
         protected in acting or refraining from acting upon any resolution,
         certificate, statement, instrument, opinion, report, notice, request,
         direction, consent, order, bond, debenture, note, other evidence of
         indebtedness or other paper or document believed by it to be genuine
         and to have been signed, sent or presented by the proper party or
         parties;

                  (ii)     any direction or act of the Guarantor  contemplated
         by this Guarantee  Agreement  shall
         be sufficiently evidenced by an Officers' Certificate;

                  (iii) whenever, in the administration of this Guarantee
         Agreement, the Trustee shall deem it desirable that a matter be proved
         or established before taking, suffering or omitting any action
         hereunder, the Trustee (unless other evidence is herein specifically
         prescribed) may, in the absence of bad faith on its part, request and
         rely upon an Officers' Certificate which, upon receipt of such request,
         shall be promptly delivered by the Guarantor;

                  (iv) the Trustee may consult with counsel of its choice, and
         the advice or opinion of such counsel with respect to legal matters
         shall be full and complete authorization and protection in respect of
         any action taken, suffered or omitted by it hereunder in good faith and
         in accordance with such advice or opinion; such counsel may be counsel
         to the Guarantor or any of its Affiliates and may include any of its
         employees; the Trustee shall have the right at any time to seek
         instructions concerning the administration of this Guarantee Agreement
         from any court of competent jurisdiction;

                  (v) the Trustee shall be under no obligation to exercise any
         of the rights or powers vested in it by this Guarantee Agreement at the
         request or direction of any Holder, unless such Holder shall have
         provided to the Trustee reasonable security and indemnity satisfactory
         to the Trustee against the costs, expenses (including attorneys' fees
         and expenses) and liabilities that might be incurred by it in complying
         with such request or direction, including such reasonable advances as
         may be requested by the Trustee; provided that nothing contained in
         this Section 3.02(a)(v) shall be taken to relieve the Trustee, upon the
         occurrence of an Event of Default, of its obligation to exercise the
         rights and powers vested in it by this Guarantee Agreement;

                  (vi) the Trustee shall not be bound to make any investigation
         into the facts or matters stated in any resolution, certificate,
         statement, instrument, opinion, report, notice, request, direction,
         consent, order, bond, debenture, note, other evidence of indebtedness
         or other paper or document, but the Trustee, in its discretion, may
         make such further inquiry or investigation into such facts or matters
         as it may see fit;

                  (vii) the Trustee may execute any of the trusts or powers
         hereunder or perform any duties hereunder either directly or by or
         through agents or attorneys, and the Trustee shall not be responsible
         for any misconduct or negligence on the part of any agent or attorney
         appointed with due care by it hereunder; and

                  (viii) whenever in the administration of this Guarantee
         Agreement the Trustee shall deem it desirable to receive instructions
         with respect to enforcing any remedy or right or taking any other
         action hereunder, the Trustee (i) may request instructions from the
         Holders, (ii) may refrain from enforcing such remedy or right or taking
         such other action until such instructions are received, and (iii) shall
         be protected in acting in accordance with such instructions.

         (b) No provision of this Guarantee Agreement shall be deemed to impose
any duty or obligation on the Trustee to perform any act or acts or exercise any
right, power, duty or obligation conferred or imposed on it in any jurisdiction
in which it shall be illegal, or in which the Trustee shall be unqualified or
incompetent in accordance with applicable law, to perform any such act or acts
or to exercise any such right, power, duty or obligation. No permissive power or
authority available to the Trustee shall be construed to be a duty.

         SECTION 3.03.     Compensation; Fees; Indemnity.
                           -----------------------------

         The Guarantor agrees:

         (a) to pay to the Trustee from time to time reasonable compensation for
all services rendered by the Trustee hereunder (which compensation shall not be
limited by any provision of law in regard to the compensation of a trustee of an
express trust);

         (b) except as otherwise expressly provided herein, to reimburse the
Trustee upon request for all reasonable expenses, disbursements and advances
incurred or made by the Trustee in accordance with any provision of this
Guarantee Agreement (including the reasonable compensation and the expenses and
disbursements of its agents and counsel), except any such expense, disbursement
or advance as may be attributable to its negligence or bad faith; and

         (c) to indemnify the Trustee, its officers, directors, employees and
agents for, and to hold the Trustee harmless against, any and all loss, damage,
claims, liability or expense incurred without negligence or bad faith on its
part, arising out of or in connection with the acceptance or administration of
this Guarantee Agreement, including the costs and expenses of defending itself
against any claim or liability in connection with the exercise or performance of
any of its powers or duties hereunder.

         The provisions of this Section 3.03 shall survive the termination of
this Guarantee Agreement.

                                   ARTICLE IV
                                     TRUSTEE

         SECTION 4.01.     Trustee; Eligibility.
                           --------------------

         (a)      There shall at all times be a Trustee which shall:

                  (i)      not be an Affiliate of the Guarantor; and

                  (ii) be a corporation organized and doing business under the
         laws of the United States of America or any State or Territory thereof
         or of the District of Columbia, or a corporation or Person permitted by
         the Securities and Exchange Commission to act as an institutional
         trustee under the Trust Indenture Act, authorized under such laws to
         exercise corporate trust powers, having a combined capital and surplus
         of at least 50 million U.S. dollars ($50,000,000), and subject to
         supervision or examination by Federal, State, Territorial or District
         of Columbia authority. If such corporation publishes reports of
         condition at least annually, pursuant to law or to the requirements of
         the supervising or examining authority referred to above, then, for the
         purposes of this Section 4.01(a)(ii), the combined capital and surplus
         of such corporation shall be deemed to be its combined capital and
         surplus as set forth in its most recent report of condition so
         published.

         (b) If at any time the Trustee shall cease to be eligible to so act
under Section 4.01(a), the Trustee shall immediately resign in the manner and
with the effect set out in Section 4.02(c).

         (c) If the Trustee has or shall acquire any "conflicting interest"
within the meaning of Section 310(b) of the Trust Indenture Act, the Trustee and
Guarantor shall in all respects comply with the provisions of Section 310(b) of
the Trust Indenture Act, subject to the rights of the Trustee under the
penultimate paragraph thereof.

         SECTION 4.02.     Appointment, Removal and Resignation of Trustee.
                           -----------------------------------------------

         (a)      Subject to Section  4.02(b),  the Trustee may be appointed or
removed  without  cause at any time
by the Guarantor.

         (b) The Trustee shall not be removed until a Successor Trustee has been
appointed and has accepted such appointment by written instrument executed by
such Successor Trustee and delivered to the Guarantor.

         (c) The Trustee appointed to office shall hold office until a Successor
Trustee shall have been appointed or until its removal or resignation. The
Trustee may resign from office (without need for prior or subsequent accounting)
by an instrument in writing executed by the Trustee and delivered to the
Guarantor, which resignation shall not take effect until a Successor Trustee has
been appointed and has accepted such appointment by instrument in writing
executed by such Successor Trustee and delivered to the Guarantor and the
resigning Trustee.

         (d) If no Successor Trustee shall have been appointed and accepted
appointment as provided in this Section 4.02 within 60 days after delivery to
the Guarantor of an instrument of resignation, the resigning Trustee may
petition any court of competent jurisdiction for appointment of a Successor
Trustee. Such court may thereupon, after prescribing such notice, if any, as it
may deem proper, appoint a Successor Trustee.

                                    ARTICLE V
                                    GUARANTEE

         SECTION 5.01. Guarantee. The Guarantor irrevocably and unconditionally
agrees to pay in full to the Holders the Guarantee Payments (without duplication
of amounts theretofore paid by or on behalf of the Trust), as and when due,
regardless of any defense, right of set-off or counterclaim which the Guarantor
may have or assert against any Person. The Guarantor's obligation to make a
Guarantee Payment may be satisfied by direct payment of the required amounts by
the Guarantor to the Holders or by causing the Trust to pay such amounts to the
Holders.

         SECTION 5.02. Waiver of Notice and Demand. The Guarantor hereby waives
notice of acceptance of this Guarantee Agreement and of any liability to which
it applies or may apply, presentment, demand for payment, any right to require a
proceeding first against the Trust or any other Person before proceeding against
the Guarantor, protest, notice of nonpayment, notice of dishonor, notice of
redemption and all other notices and demands.

         SECTION 5.03.     Obligations  Not  Affected.  The  obligation  of the
Guarantor  to make  the  Guarantee
Payments  under this  Guarantee  Agreement  shall in no way be affected or
impaired by reason of the happening from
time to time of any of the following:

         (a) the release or waiver, by operation of law or otherwise, of the
performance or observance by the Trust of any express or implied agreement,
covenant, term or condition relating to the Preferred Securities to be performed
or observed by the Trust;

         (b) the extension of time for the payment by the Trust of all or any
portion of the Distributions, Redemption Price, Liquidation Distribution or any
other sums payable under the terms of the Preferred Securities or the extension
of time for the performance of any other obligation under, arising out of, or in
connection with, the Preferred Securities (other than an extension of time for
payment of Distributions, Redemption Price, Liquidation Distribution or other
sum payable that results from the extension of any interest payment period on
the Junior Subordinated Notes permitted by the Indenture);

         (c) any failure, omission, delay or lack of diligence on the part of
the Holders to enforce, assert or exercise any right, privilege, power or remedy
conferred on the Holders pursuant to the terms of the Preferred Securities, or
any action on the part of the Trust granting indulgence or extension of any
kind;

         (d) the voluntary or involuntary liquidation, dissolution, sale of any
collateral, receivership, insolvency, bankruptcy, assignment for the benefit of
creditors, reorganization, arrangement, composition or readjustment of debt of,
or other similar proceedings affecting, the Trust or any of the assets of the
Trust;

          (e)  any  invalidity  of, or defect or  deficiency  in, the  Preferred
               Securities;

          (f)  the settlement or compromise of any obligation  guaranteed hereby
               or hereby incurred; or

         (g) any other circumstance whatsoever that might otherwise constitute a
legal or equitable discharge or defense of a guarantor, it being the intent of
this Section 5.03 that the obligations of the Guarantor hereunder shall be
absolute and unconditional under any and all circumstances.

         There shall be no obligation of the Holders to give notice to, or
obtain consent of, the Guarantor with respect to the happening of any of the
foregoing.

         SECTION 5.04. Rights of Holders. The Guarantor expressly acknowledges
that: (i) this Guarantee Agreement will be deposited with the Trustee to be held
for the benefit of the Holders; (ii) the Trustee has the right to enforce this
Guarantee Agreement on behalf of the Holders; (iii) the Holders of a Majority in
liquidation amount of the Preferred Securities have the right to direct the
time, method and place of conducting any proceeding for any remedy available to
the Trustee in respect of this Guarantee Agreement or exercising any trust or
power conferred upon the Trustee under this Guarantee Agreement, provided that
such direction shall not be in conflict with any rule of law or with this
Guarantee Agreement, and could not involve the Trustee in personal liability in
circumstances where reasonable indemnity would not be adequate; and (iv) any
Holder may institute a legal proceeding directly against the Guarantor to
enforce its rights under this Guarantee Agreement, without first instituting a
legal proceeding against or requesting or directing that action be taken by the
Trustee or any other Person; it being understood and intended that no one or
more of such Holders shall have any right in any manner whatsoever by virtue of,
or by availing of, any provision of this Guarantee Agreement to affect, disturb
or prejudice the rights of any other of such Holders or to obtain or to seek to
obtain priority or preference over any other of such Holders or to enforce any
right under this Guarantee Agreement, except in the manner herein provided and
for the equal and ratable benefit of all of such Holders.

         SECTION 5.05. Guarantee of Payment. This Guarantee Agreement creates a
guarantee of payment and not of collection. This Guarantee Agreement will not be
discharged except by payment of the Guarantee Payments in full (without
duplication) or upon the distribution of Junior Subordinated Notes to the
Holders in exchange for all of the Preferred Securities.

         SECTION 5.06. Subrogation. The Guarantor shall be subrogated to all (if
any) rights of the Holders against the Trust in respect of any amounts paid to
the Holders by the Guarantor under this Guarantee Agreement; provided, however,
that the Guarantor shall not (except to the extent required by mandatory
provisions of law) be entitled to enforce or exercise any rights which it may
acquire by way of subrogation or any indemnity, reimbursement or other
agreement, in all cases as a result of payment under this Guarantee Agreement,
if, at the time of any such payment, any amounts of Guarantee Payments are due
and unpaid under this Guarantee Agreement. If any amount shall be paid to the
Guarantor in violation of the preceding sentence, the Guarantor agrees to hold
such amount in trust for the Holders and to pay over such amount to the Holders.

         SECTION 5.07. Independent Obligations. The Guarantor acknowledges that
its obligations hereunder are independent of the obligations of the Trust with
respect to the Preferred Securities and that the Guarantor shall be liable as
principal and as debtor hereunder to make Guarantee Payments pursuant to the
terms of this Guarantee Agreement notwithstanding the occurrence of any event
referred to in subsections (a) through (g), inclusive, of Section 5.03 hereof.

                                   ARTICLE VI
                                  SUBORDINATION

         SECTION 6.01. Subordination. This Guarantee Agreement will constitute
an unsecured obligation of the Guarantor and will rank (i) subordinate and
junior in right of payment to all other liabilities of the Guarantor, including
the Junior Subordinated Notes, except those obligations or liabilities made pari
passu or subordinate by their terms, (ii) pari passu with the most senior
preferred or preference stock now or hereafter issued by the Guarantor and with
any guarantee now or hereafter entered into by the Guarantor in respect of any
preferred or preference securities of any Affiliate of the Guarantor, and (iii)
senior to all common stock of the Guarantor.

                                   ARTICLE VII
                                   TERMINATION

         SECTION 7.01. Termination. This Guarantee Agreement shall terminate and
be of no further force and effect upon: (i) full payment of the Redemption Price
of all Preferred Securities, (ii) the distribution of Junior Subordinated Notes
to the Holders in exchange for all of the Preferred Securities, or (iii) full
payment of the amounts payable in accordance with the Trust Agreement upon
liquidation of the Trust. Notwithstanding the foregoing, this Guarantee
Agreement will continue to be effective or will be reinstated, as the case may
be, if at any time any Holder must restore payment of any sums paid with respect
to Preferred Securities or under this Guarantee Agreement.

                                  ARTICLE VIII
                                  MISCELLANEOUS

         SECTION 8.01. Successors and Assigns. All guarantees and agreements
contained in this Guarantee Agreement shall bind the successors, assigns,
receivers, trustees and representatives of the Guarantor and shall inure to the
benefit of the Holders of the Preferred Securities then outstanding. Except in
connection with a consolidation, merger, conveyance, transfer, or lease
involving the Guarantor that is permitted under Article Eight of the Indenture,
the Guarantor shall not assign its obligations hereunder.

         SECTION 8.02. Amendments. Except with respect to any changes which do
not materially and adversely affect the rights of Holders (in which case no
consent of Holders will be required), this Guarantee Agreement may only be
amended with the prior approval of the Holders of not less than 66-2/3% in
liquidation amount of all the outstanding Preferred Securities. The provisions
of Article Six of the Trust Agreement concerning meetings of Holders shall apply
to the giving of such approval.

         SECTION 8.03. Notices. Any notice, request or other communication
required or permitted to be given hereunder shall be in writing, duly signed by
the party giving such notice, and delivered, telecopied or mailed by first class
mail as follows:

         (a) if given to the Guarantor, to the address set forth below or such
other address as the Guarantor may give notice of to the Trustee and the
Holders:

                           Mississippi Power Company
                           2992 West Beach
                           Gulfport, Mississippi  39501
                           Facsimile No.:  (601) 865-5658
                           Attn:  Treasurer

                           with copy to:

                           Southern Company Services, Inc.
                           270 Peachtree Street, N.W., Suite 2000
                           Atlanta, Georgia  30303
                           Facsimile No.:   (404) 506-0674
                           Attention: Corporate Finance Department

         (b) if given to the Trust, in care of the Trustee, or to the Trustee at
the Trust's (and the Trustee's) address set forth below or such other address as
the Trustee on behalf of the Trust may give notice to the Holders:

                           Mississippi Power Capital Trust II
                           c/o Bankers Trust Company
                           Four Albany Street
                           New York, New York 10006
                           Attn:    Corporate Trust and Agency Group
                                    Manager Public Utilities Group

          (c)  if given to any Holder, at the address set forth on the books and
               records of the Trust.

         All notices hereunder shall be deemed to have been given when received
in person, telecopied with receipt confirmed, or mailed by first class mail,
postage prepaid except that if a notice or other document is refused delivery or
cannot be delivered because of a changed address of which no notice was given,
such notice or other document shall be deemed to have been delivered on the date
of such refusal or inability to deliver.

          SECTION 8.04.  Benefit.  This  Guarantee  Agreement  is solely for the
               benefit of the Holders and,  subject to Section  3.01(a),  is not
               separately transferable from the Preferred Securities.

               SECTION 8.05. Interpretation. In this Guarantee Agreement, unless
                    the context otherwise requires:

               (a)  capitalized  terms used in this Guarantee  Agreement but not
                    defined in the preamble hereto have the respective  meanings
                    assigned to them in Section 1.01;

               (b)  a term defined anywhere in this Guarantee  Agreement has the
                    same meaning throughout;

               (c)  all  references  to  "the  Guarantee   Agreement"  or  "this
                    Guarantee  Agreement"  are to this  Guarantee  Agreement  as
                    modified, supplemented or amended from time to time;

               (d)  all references in this  Guarantee  Agreement to Articles and
                    Sections  are to Articles  and  Sections  of this  Guarantee
                    Agreement unless otherwise specified;

               (e)  a term  defined  in the  Trust  Indenture  Act has the  same
                    meaning  when  used  in  this  Guarantee   Agreement  unless
                    otherwise defined in this Guarantee  Agreement or unless the
                    context otherwise requires;

               (f)  a reference  to the  singular  includes  the plural and vice
                    versa; and

               (g)  the masculine,  feminine or neuter genders used herein shall
                    include the masculine, feminine and neuter genders.

         SECTION 8.06. Governing Law. THIS GUARANTEE AGREEMENT SHALL BE GOVERNED
BY AND CONSTRUED AND INTERPRETED IN ACCORDANCE WITH THE INTERNAL LAWS OF THE
STATE OF NEW YORK. THE GUARANTOR HEREBY IRREVOCABLY SUBMITS TO THE JURISDICTION
OF THE UNITED STATES DISTRICT COURT FOR THE SOUTHERN DISTRICT OF NEW YORK AND
ANY COURT IN THE STATE OF NEW YORK LOCATED IN THE CITY AND COUNTY OF NEW YORK IN
ANY ACTION, SUIT OR PROCEEDING BROUGHT AGAINST IT AND RELATED TO OR IN
CONNECTION WITH THIS GUARANTEE AGREEMENT OR THE TRANSACTIONS CONTEMPLATED
THEREBY, AND TO THE EXTENT PERMITTED BY APPLICABLE LAW, THE GUARANTOR HEREBY
WAIVES AND AGREES NOT TO ASSERT BY WAY OF MOTION, AS A DEFENSE OR OTHERWISE IN
ANY SUCH SUIT, ACTION OR PROCEEDING, ANY CLAIM THAT IT IS NOT PERSONALLY SUBJECT
TO THE JURISDICTION OF SUCH COURTS, THAT THE SUIT, ACTION OR PROCEEDING IS
BROUGHT IN AN INCONVENIENT FORUM, THAT THE VENUE OF THE SUIT, ACTION OR
PROCEEDING IS IMPROPER, OR THAT THIS GUARANTEE AGREEMENT OR ANY DOCUMENT OR ANY
INSTRUMENT REFERRED TO HEREIN OR THE SUBJECT MATTER HEREOF MAY NOT BE LITIGATED
IN OR BY SUCH COURTS. THE GUARANTOR AGREES THAT SERVICE OF PROCESS MAY BE MADE
UPON IT BY CERTIFIED OR REGISTERED MAIL TO THE ADDRESS FOR NOTICES SET FORTH IN
THIS GUARANTEE AGREEMENT OR ANY METHOD AUTHORIZED BY THE LAWS OF NEW YORK.

         This instrument may be executed in any number of counterparts, each of
which so executed shall be deemed to be an original, but all such counterparts
shall together constitute but one and the same instrument.










       THIS GUARANTEE AGREEMENT is executed as of the day and year first above
written.

                            MISSISSIPPI POWER COMPANY



              By:
                   -----------------------------------------------------------
                       Michael W. Southern
                       Vice President, Treasurer and Chief Financial Officer


              BANKERS TRUST COMPANY


              By:
                   -----------------------------------------------------------
                       Richard L. Buckwalter
   Vice President



    1This Cross-Reference Table does not constitute part of the Guarantee
Agreement and shall not affect the interpretation of any of its terms or
provisions.