FORM 10-Q

                                  UNITED STATES

                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

(Mark One)

[X]      QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
         EXCHANGE ACT OF 1934

For the quarterly period ended March 31, 2003

OR

[  ]     TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
         EXCHANGE ACT OF 1934

For the transition period from ________ to ___________

Commission file number: 0-3683

                              TRUSTMARK CORPORATION

State or other jurisdiction of                                (I.R.S. Employer
incorporation or organization                                Identification No.)
         Mississippi                                             64-0471500

Trustmark Corporation
248 East Capitol Street
Jackson, MS 39201
(601) 208-5111

Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the  preceding 12 months (or for such  shorter  period that the  registrant  was
required  to file  such  reports),  and  (2) has  been  subject  to such  filing
requirements for the past 90 days. Yes X No ____

Indicate  by check mark  whether  the  registrant  is an  accelerated  filer (as
defined in Rule 12b-2 of the Exchange Act). Yes X No ____

Indicate the number of shares outstanding of each of the registrant's classes of
common stock, as of April 30, 2003.

          Title                                                      Outstanding
Common stock, no par value                                            59,175,352





                          PART I. FINANCIAL INFORMATION
                          ITEM 1. FINANCIAL STATEMENTS

                     Trustmark Corporation and Subsidiaries
                           Consolidated Balance Sheets
                                ($ in thousands)

                                                      (Unaudited)
                                                       March 31,    December 31,
                                                         2003           2002
                                                      -----------    -----------
Assets
Cash and due from banks (noninterest-bearing)         $   363,738    $   357,427
Federal funds sold and securities purchased
    under reverse repurchase agreements                    27,015         23,957
Securities available for sale (at fair value)           1,523,599      1,262,570
Securities held to maturity (fair value:
    $464,743 - 2003; $578,150 - 2002)                     442,946        549,197
Loans held for sale                                       125,730        199,680
Loans                                                   4,505,350      4,417,686
Less allowance for loan losses                             74,867         74,771
                                                      -----------    -----------
   Net loans                                            4,430,483      4,342,915
Premises and equipment                                    103,630        104,113
Intangible assets                                         109,608        119,643
Other assets                                              179,115        179,204
                                                      -----------    -----------
     Total Assets                                     $ 7,305,864    $ 7,138,706
                                                      ===========    ===========

Liabilities
Deposits:
     Noninterest-bearing                              $ 1,223,941    $ 1,251,240
     Interest-bearing                                   3,754,058      3,435,056
                                                      -----------    -----------
         Total deposits                                 4,977,999      4,686,296
Federal funds purchased                                   321,746        319,985
Securities sold under repurchase agreements               494,729        634,993
Short-term borrowings                                     321,879        275,959
Long-term FHLB advances                                   457,667        475,000
Other liabilities                                          71,201         66,939
                                                      -----------    -----------
     Total Liabilities                                  6,645,221      6,459,172

Commitments and Contingencies

Shareholders' Equity
Common stock, no par value:
     Authorized: 250,000,000 shares
     Issued and outstanding:  59,210,244 shares -
        2003; 60,516,668 shares - 2002                     12,337         12,609
Capital surplus                                           157,954        188,652
Retained earnings                                         484,980        470,317
Accumulated other comprehensive income, net of tax          5,372          7,956
                                                      -----------    -----------
     Total Shareholders' Equity                           660,643        679,534
                                                      -----------    -----------
     Total Liabilities and Shareholders' Equity       $ 7,305,864    $ 7,138,706
                                                      ===========    ===========

See notes to consolidated financial statements.



                     Trustmark Corporation and Subsidiaries
                        Consolidated Statements of Income
                     ($ in thousands except per share data)
                                   (Unaudited)

                                                         Three Months Ended
                                                             March 31,
                                                      -----------------------
                                                        2003           2002
                                                      --------       --------
Interest Income
Interest and fees on loans                            $ 70,699       $ 77,463
Interest on securities:
     Taxable                                            20,155         24,169
     Tax exempt                                          2,069          2,336
Interest on federal funds sold and securities
     purchased under reverse repurchase agreements          82             99
Other interest income                                       12            770
                                                      --------       --------
     Total Interest Income                              93,017        104,837

Interest Expense
Interest on deposits                                    16,062         21,778
Interest on federal funds purchased and securities
     sold under repurchase agreements                    2,726          3,659
Other interest expense                                   5,032          5,471
                                                      --------       --------
     Total Interest Expense                             23,820         30,908
                                                      --------       --------
Net Interest Income                                     69,197         73,929
Provision for loan losses                                3,000          4,307
                                                      --------       --------

Net Interest Income After Provision
     for Loan Losses                                    66,197         69,622

Noninterest Income
Service charges on deposit accounts                     12,680         11,424
Other account charges and fees                           6,625          7,001
Insurance commissions                                    3,787          2,660
Mortgage servicing fees                                  4,326          4,322
Trust service income                                     2,311          2,519
Gains on sales of loans                                  3,893          1,505
Securities gains                                         8,148            140
Other income                                              (587)          (585)
                                                      --------       --------
     Total Noninterest Income                           41,183         28,986

Noninterest Expense
Salaries and employee benefits                          35,924         29,522
Net occupancy - premises                                 2,986          2,789
Equipment expense                                        3,710          3,895
Services and fees                                        7,879          7,805
Amortization/impairment of intangible assets            11,655            986
Loan expense                                             2,371          2,552
Other expense                                            5,201          4,441
                                                      --------       --------
     Total Noninterest Expense                          69,726         51,990
                                                      --------       --------
Income Before Income Taxes                              37,654         46,618
Income taxes                                            13,170         16,289
                                                      --------       --------
Net Income                                            $ 24,484       $ 30,329
                                                      ========       ========
Earnings Per Share
     Basic                                            $   0.41       $   0.48
                                                      ========       ========
     Diluted                                          $   0.41       $   0.48
                                                      ========       ========



See notes to consolidated financial statements.



                     Trustmark Corporation and Subsidiaries
           Consolidated Statements of Changes in Shareholders' Equity
                                ($ in thousands)
                                   (Unaudited)

                                                          2003           2002
                                                       ---------      ---------

Balance, January 1,                                    $ 679,534      $ 685,444
Comprehensive income:
     Net income per consolidated statements of income     24,484         30,329
     Net change in fair value of securities available
       for sale, net of tax                               (5,550)        (1,047)
     Net change in fair value of cash flow hedges,
       net of tax                                          2,966           (231)
                                                       ---------      ---------
          Comprehensive income                            21,900         29,051
Cash dividends paid                                       (9,821)        (9,520)
Common stock transactions, long-term incentive plan          563              -
Repurchase and retirement of common stock                (31,533)       (19,389)
                                                       ---------      ---------
Balance, March 31,                                     $ 660,643      $ 685,586
                                                       =========      =========


































See notes to consolidated financial statements.



                     Trustmark Corporation and Subsidiaries
                      Consolidated Statements of Cash Flows
                                ($ in thousands)
                                   (Unaudited)

                                                           Three Months Ended
                                                               March 31,
                                                        -----------------------
                                                           2003          2002
                                                        ---------     ---------
Operating Activities
Net income                                              $  24,484     $  30,329
Adjustments to reconcile net income to net cash
     provided by operating activities:
        Provision for loan losses                           3,000         4,307
        Depreciation and amortization/impairment           14,632         4,176
        Net amortization (accretion) of securities          1,932          (181)
        Securities gains                                   (8,148)         (140)
        Gains on sales of loans                            (3,893)       (1,505)
        Deferred income tax (benefit) provision            (1,462)        3,641
        Proceeds from sales of loans                      963,965       249,765
        Purchases and originations of loans held
           for sale                                      (838,235)     (203,380)
        Net increase in intangible assets                  (1,620)       (4,000)
        Net decrease in other assets                        1,882         2,075
        Net increase in other liabilities                   9,066         8,147
        Other operating activities, net                      (155)           (8)
                                                        ---------     ---------
Net cash provided by operating activities                 165,448        93,226

Investing Activities
Proceeds from calls and maturities of securities
     held to maturity                                     180,810        79,844
Proceeds from calls and maturities of securities
     available for sale                                    85,375        89,914
Proceeds from sales of securities available for sale       76,922           176
Purchases of securities available for sale               (500,728)      (27,077)
Net (increase) decrease in federal funds sold
     and securities purchased under reverse
     repurchase agreements                                 (3,058)      120,371
Net (increase) decrease in loans                         (138,455)       41,101
Purchases of premises and equipment                        (2,194)       (9,110)
Proceeds from sales of premises and equipment                 480            16
Proceeds from sales of other real estate                      715           854
                                                        ---------     ---------
Net cash (used in) provided by investing activities      (300,133)      296,089

Financing Activities
Net increase in deposits                                  291,703        16,447
Net decrease in federal funds purchased and securities
     sold under repurchase agreements                    (138,503)     (236,251)
Net increase (decrease) in other borrowings                45,920      (197,762)
Proceeds from long-term FHLB advances                     (17,333)            -
Cash dividends                                             (9,821)       (9,520)
Common stock transactions, net                            (30,970)      (19,389)
                                                        ---------     ---------
Net cash provided by (used in) financing activities       140,996      (446,475)
                                                        ---------     ---------
Increase (decrease) in cash and cash equivalents            6,311       (57,160)
Cash and cash equivalents at beginning of period          357,427       328,779
                                                        ---------     ---------
Cash and cash equivalents at end of period              $ 363,738     $ 271,619
                                                        =========     =========

See notes to consolidated financial statements.


                      TRUSTMARK CORPORATION & SUBSIDIARIES
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS



NOTE 1 - BASIS OF FINANCIAL STATEMENT PRESENTATION AND PRINCIPLES OF
         CONSOLIDATION

The accompanying unaudited condensed consolidated financial statements have been
prepared in conformity  with  accounting  principles  generally  accepted in the
United  States  of  America  for  interim  financial  information  and  with the
instructions  to  Form  10-Q.  Accordingly,  they  do  not  include  all  of the
information and footnotes required by accounting  principles  generally accepted
in the United  States of  America  for  complete  financial  statements.  In the
opinion of Management, all adjustments (consisting of normal recurring accruals)
considered  necessary for the fair presentation of these consolidated  financial
statements  have been  included.  The notes  included  herein  should be read in
conjunction with the notes to the consolidated  financial statements included in
Trustmark Corporation's (Trustmark) 2002 annual report on Form 10-K.

The consolidated  financial  statements  include  Trustmark and its wholly-owned
bank  subsidiaries,  Trustmark  National Bank (TNB) and Somerville  Bank & Trust
Company  (Somerville).  All  intercompany  accounts and  transactions  have been
eliminated in consolidation.  Certain  reclassifications have been made to prior
period amounts to conform with the current year presentation.

NOTE 2 - BUSINESS COMBINATIONS

On June 28, 2002, The Bottrell Insurance Agency, Inc., a wholly-owned subsidiary
of TNB, acquired Chandler-Sampson Insurance, Inc. (CSI) in Jackson, Mississippi.
This business combination, which is not material to Trustmark, was accounted for
under the purchase  method of accounting.  The  shareholders  of CSI received $8
million in cash in  connection  with the merger.  Excess cost over  tangible net
assets  acquired  totaled $10  million,  of which $3 million and $7 million have
been   allocated  to  other   identifiable   intangible   assets  and  goodwill,
respectively. Trustmark's financial statements include the results of operations
for the CSI  acquisition  from the  merger  date.  The pro forma  impact of this
acquisition on Trustmark's results of operations is insignificant.

NOTE 3 - ALLOWANCE FOR LOAN LOSSES

The following table summarizes the activity in the allowance for loan losses for
the three month periods ended March 31 ($ in thousands):
                                                           2003          2002
                                                         --------      --------
Balance at beginning of year                             $ 74,771      $ 75,534
Provision charged to expense                                3,000         4,307
Loans charged off                                          (5,191)       (6,846)
Recoveries                                                  2,287         2,245
                                                         --------      --------
     Net charge-offs                                       (2,904)       (4,601)
                                                         --------      --------
   Balance at end of period                              $ 74,867      $ 75,240
                                                         ========      ========

At March 31, 2003 and 2002, the carrying  amounts of nonaccrual loans were $31.8
million and $41.0 million,  respectively.  Included in these nonaccrual loans at
March 31, 2003 and 2002,  are loans that are  considered  to be impaired,  which
totaled $24.7 million and $33.4  million,  respectively.  At March 31, 2003, the
total  allowance  for loan  losses  related to impaired  loans was $6.5  million
compared with $8.2 million at March 31, 2002.  The average  carrying  amounts of
impaired  loans during the first quarter of 2003 and 2002 were $25.5 million and
$32.4  million,  respectively.  No  material  amounts of  interest  income  were
recognized on impaired  loans or nonaccrual  loans for the first quarter of 2003
or 2002.


NOTE 4 - INTANGIBLE ASSETS

At  March  31,  2003  and  December  31,  2002,  intangible  assets,  net of any
applicable  amortization  or  impairment,  consisted  of  the  following  ($  in
thousands):

                                                        March 31,   December 31,
                                                          2003          2002
                                                       ----------    ----------
Mortgage servicing rights                              $   39,655    $   48,827
Goodwill                                                   48,028        48,028
Other identifiable intangible assets:
   Core deposit intangibles                                18,562        19,288
   Insurance customer relationship intangibles              2,767         2,904
                                                       ----------    ----------
      Total amortizable                                    21,329        22,192
   Pension plan intangible                                    596           596
                                                       ----------    ----------
      Total other identifiable intangible assets           21,925        22,788
                                                       ----------    ----------
Total intangible assets                                $  109,608    $  119,643
                                                       ==========    ==========

NOTE 5 - STOCK-BASED COMPENSATION

Prior to January 1, 2003,  Trustmark accounted for incentive stock options under
the recognition and measurement  provisions of Accounting Principles Board (APB)
Opinion No. 25,  "Accounting  for Stock Issued to Employees."  Under APB No. 25,
because the exercise price of Trustmark's  incentive  stock options  equaled the
market  price for the  underlying  stock on the date of grant,  no  compensation
expense was recognized.  Effective  January 1, 2003,  Trustmark adopted the fair
value  recognition  provisions  of Statement of Financial  Accounting  Standards
(SFAS) No. 123,  "Accounting for Stock-Based  Compensation,"  as amended by SFAS
No. 148, "Accounting for Stock-Based  Compensation - Transition and Disclosure."
Under the provisions of these  statements,  Trustmark will account for incentive
stock options  prospectively  for all awards granted,  modified or settled after
January 1, 2003. The following  table reflects pro forma net income and earnings
per share for the periods  presented,  had  Trustmark  elected to adopt the fair
value approach prior to January 1, 2003 ($ in thousands except per share data):

                                                             Three Months Ended
                                                                  March 31,
                                                             ------------------
                                                               2003       2002
                                                             -------    -------
Net income, as reported                                      $24,484    $30,329
Add:  Total stock-based employee compensation expense
      included in reported net income, net of related
      tax effects                                                  -          -
Deduct:  Total stock-based employee compensation
      expense determined under fair value based method
      for all awards, net of related tax effects                (336)      (382)
                                                             -------    -------
Pro forma net income                                         $24,148    $29,947
                                                             =======    =======
Earnings per share:
  As reported
     Basic                                                   $  0.41    $  0.48
     Diluted                                                    0.41       0.48

  Pro forma
     Basic                                                   $  0.40    $  0.47
     Diluted                                                    0.40       0.47

NOTE 6 - CONTINGENCIES

Standby Letters of Credit
Trustmark  issues  financial and  performance  standby  letters of credit in the
normal  course  of  business  in order to  fulfill  the  financing  needs of its
customers.  Standby  letters of credit  are  conditional  commitments  issued by
Trustmark to insure the  performance of a customer to a third party. A financial
standby  letter of credit is a commitment by Trustmark to guarantee a customer's
repayment of an  outstanding  loan or debt  instrument.  Trustmark  guarantees a
customer's  performance  to a  third  party  under  a  contractual  nonfinancial
obligation  through  the use of a  performance  standby  letter of credit.  When
issuing  letters  of  credit,  Trustmark  uses  essentially  the  same  policies
regarding credit risk and collateral which are followed in the lending process.


At March 31, 2003, the maximum  potential  amount of future  payments  Trustmark
could be required to make under its standby letters of credit was $68.7 million,
which  also   represented   the  maximum  credit  risk   associated  with  these
commitments.  This amount consisted  primarily of commitments with maturities of
less than four  years.  These  standby  letters  of  credit  have an  immaterial
carrying value.  Trustmark holds collateral to support standby letters of credit
when deemed  necessary.  As of March 31, 2003, the fair value of collateral held
was $18.1 million.

Legal Proceedings
Trustmark  and its  subsidiaries  are parties to lawsuits  and other claims that
arise in the ordinary  course of business.  Some of the lawsuits  assert  claims
related  to the  lending,  collection,  servicing,  investment,  trust and other
business  activities;  and some of the lawsuits  allege  substantial  claims for
damages.  The cases are being  vigorously  contested.  In the regular  course of
business,  Management evaluates estimated losses or costs related to litigation,
and provision is made for anticipated losses whenever  Management  believes that
such losses are probable and can be reasonably  estimated.  At the present time,
Management  believes,  based on the  advice  of legal  counsel,  that the  final
resolution  of pending  legal  proceedings  will not have a  material  impact on
Trustmark's consolidated financial position or results of operations.

NOTE 7 - EARNINGS PER SHARE

Basic  earnings  per share  (EPS) is  computed  by  dividing  net  income by the
weighted average shares of common stock outstanding.  Diluted EPS is computed by
dividing net income by the weighted average shares of common stock  outstanding,
adjusted for the effect of partially  diluted stock options  outstanding  during
the  period.  The  following  table  reflects  weighted  average  shares used to
calculate basic and diluted EPS for the periods presented:
                                                          Three Months Ended
                                                               March 31,
                                                       -------------------------
                                                          2003           2002
                                                       ----------     ----------
Basic                                                  59,912,276     63,463,798
Dilutive shares (due to stock options)                    143,475        207,755
                                                       ----------     ----------
Diluted                                                60,055,751     63,671,553
                                                       ==========     ==========

NOTE 8 - STATEMENTS OF CASH FLOWS

Trustmark paid income taxes  approximating  $1.1 million and $2.0 million during
the three months ended March 31, 2003 and 2002,  respectively.  Interest paid on
deposit liabilities and other borrowings approximated $23.8 million in the first
three months of 2003 and $33.5  million in the first three  months of 2002.  For
the three months ended March 31, 2003 and 2002,  noncash transfers from loans to
foreclosed properties were $864 thousand and $1.8 million, respectively.

NOTE 9 - RECENT PRONOUNCEMENTS

In April 2003, the Financial  Accounting  Standards Board (FASB) issued SFAS No.
149,  "Amendment  of  Statement  133  on  Derivative   Instruments  and  Hedging
Activities."  This  statement  amends and  clarifies  financial  accounting  and
reporting for derivative  instruments,  including certain derivative instruments
embedded in other contracts  (collectively  referred to as derivatives)  and for
hedging  activities under SFAS No. 133,  "Accounting for Derivative  Instruments
and Hedging  Activities." This statement is effective for contracts entered into
or modified after June 30, 2003, and for hedging relationships  designated after
June 30, 2003.  Management  is in the process of  evaluating  the impact of this
statement  but does not  expect  it to have a  material  impact  on  Trustmark's
consolidated financial position and results of operations.

NOTE 10 - SEGMENT INFORMATION

Effective  January 1, 2003,  Trustmark changed the composition of its reportable
segments to the following:  Consumer Division,  Commercial Division,  Investment
Division and Operations Division. The Consumer Division delivers a full range of
banking, investment and risk management products and services to individuals and
small businesses through Trustmark's extensive branch network.  Included in this
segment are products and services for insurance, credit card, mortgage, indirect
automobile financing and student loans. The Commercial Division provides various
financial products and services to corporate and middle-market clients. Included
among these  products and services are  specialized  services for commercial and
residential real estate development lending as well as other specialized lending
services.  The  Investment  Division  includes  trust  and  fiduciary  services,
discount  brokerage  services  and services for private  banking  clients.  Also
included  in this  segment is a  selection  of  investment  management  services



including  Trustmark's  proprietary mutual fund family. The Operations  Division
consists of  asset/liability  management  activities that include the investment
portfolio and the related gains/losses on sales of securities, as well as credit
risk  management,   bank  operations,   human  resources  and  the  controller's
department.  The  Operations  Division also includes  expenses such as corporate
overhead and amortization of intangible assets.

Trustmark  evaluates  performance and allocates resources based on the profit or
loss of the individual  segments.  Trustmark  utilizes matched maturity transfer
pricing to assign cost of funding to assets and earnings  credits to liabilities
with a  corresponding  offset to the Operations  Division.  Trustmark  allocates
non-interest  expense  based  on  various   activity-based  costing  statistics.
Excluding internal funding,  Trustmark does not have  inter-company  revenues or
expenses.  Additionally,  segment  income tax  expense is  calculated  using the
marginal tax rate. The difference between the marginal and effective tax rate is
included in the Operations Division.

The table on page 11 discloses financial  information by segment for the periods
ended  March 31,  2003 and 2002.  The prior  year  period has been  restated  to
conform to the current presentation.

Trustmark Corporation
Segment Information
($ in thousands)



                                      Consumer    Commercial   Investment   Operations
                                      Division     Division     Division     Division      Total
                                     ----------   ----------   ----------   ----------   ----------
For the three months ended
March 31, 2003
- ----------------------------------
                                                                          
Net interest income from
    external customers               $   39,922   $   13,208   $    1,225   $   14,842   $   69,197
Internal funding                          8,038       (2,588)         (33)      (5,417)           -
                                     ----------   ----------   ----------   ----------   ----------
Net interest income                      47,960       10,620        1,192        9,425       69,197
Provision for loan losses                 2,589           56          (15)         370        3,000
                                     ----------   ----------   ----------   ----------   ----------
Net interest income after
    provision for loan losses            45,371       10,564        1,207        9,055       66,197
Noninterest income                       25,318        1,939        4,794        9,132       41,183
Noninterest expense                      52,054        3,729        4,323        9,620       69,726
                                     ----------   ----------   ----------   ----------   ----------
Income before income taxes               18,635        8,774        1,678        8,567       37,654
Income taxes                              6,532        3,027          623        2,988       13,170
                                     ----------   ----------   ----------   ----------   ----------
Segment net income                   $   12,103   $    5,747   $    1,055   $    5,579   $   24,484
                                     ==========   ==========   ==========   ==========   ==========

Selected Financial Information
     Average assets                  $3,930,989   $1,108,520   $  117,802   $1,931,803   $7,089,114
     Depreciation and amortization   $   12,336   $      114   $      105   $    2,077   $   14,632

For the three months ended
March 31, 2002
- ----------------------------------
Net interest income from
    external customers               $   38,581   $   14,474   $    1,239   $   19,635   $   73,929
Internal funding                          8,110       (4,495)        (318)      (3,297)           -
                                     ----------   ----------   ----------   ----------   ----------
Net interest income                      46,691        9,979          921       16,338       73,929
Provision for loan losses                 2,609        1,856           (9)        (149)       4,307
                                     ----------   ----------   ----------   ----------   ----------
Net interest income after
    provision for loan losses            44,082        8,123          930       16,487       69,622
Noninterest income                       21,472        1,674        5,542          298       28,986
Noninterest expense                      41,283        3,396        4,177        3,134       51,990
                                     ----------   ----------   ----------   ----------   ----------
Income before income taxes               24,271        6,401        2,295       13,651       46,618
Income taxes                              8,416        2,208          843        4,822       16,289
                                     ----------   ----------   ----------   ----------   ----------
Segment net income                   $   15,855   $    4,193   $    1,452   $    8,829   $   30,329
                                     ==========   ==========   ==========   ==========   ==========

Selected Financial Information
     Average assets                  $3,813,118   $1,077,269   $   96,330   $1,896,483   $6,883,200
     Depreciation and amortization   $    1,698   $      112   $       88   $    2,278   $    4,176



ITEM 2.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
         OF OPERATIONS

The  following  provides  a  narrative  discussion  and  analysis  of  Trustmark
Corporation's  (Trustmark)  financial condition and results of operations.  This
discussion  should  be read  in  conjunction  with  the  consolidated  financial
statements  and the  supplemental  financial  data  included  elsewhere  in this
report.

BUSINESS

Trustmark is a multi-bank holding company headquartered in Jackson, Mississippi,
incorporated under the Mississippi  Business  Corporation Act on August 5, 1968.
Trustmark  commenced doing business in November 1968.  Through its subsidiaries,
Trustmark  operates as a financial services  organization  providing banking and
financial  solutions  to  corporate,   institutional  and  individual  customers
predominantly within the states of Mississippi and Tennessee.

Trustmark National Bank (TNB), Trustmark's wholly-owned subsidiary, accounts for
substantially all of the assets and revenues of Trustmark.  Initially  chartered
by the State of  Mississippi  in 1889,  TNB is also  headquartered  in  Jackson,
Mississippi.  In addition to banking  activities,  TNB provides  investment  and
insurance  products and services to its  customers  through  three  wholly-owned
subsidiaries, Trustmark Financial Services, Inc., Trustmark Investment Advisors,
Inc. and The Bottrell Insurance Agency, Inc.

Trustmark  also  engages  in  banking   activities   through  its   wholly-owned
subsidiary,  Somerville  Bank & Trust  Company  (Somerville),  headquartered  in
Somerville,  Tennessee. Somerville was acquired in a business combination during
2001  and  presently  has  five  locations  in  Somerville,  Hickory  Withe  and
Rossville,  Tennessee.  In addition to its banking subsidiaries,  Trustmark also
owns all of the stock of F. S. Corporation and First Building Corporation,  both
inactive   nonbank   Mississippi   corporations.   Neither   Trustmark  nor  its
subsidiaries have any foreign  activities.  As of March 31, 2003,  Trustmark and
its subsidiaries employed 2,283 full-time equivalent employees.

Trustmark  engages in business  through its four reportable  segments:  Consumer
Division,  Commercial Division, Investment Division and Operations Division. The
Consumer  Division  delivers  a full  range  of  banking,  investment  and  risk
management  products and services to individuals  and small  businesses  through
Trustmark's  extensive branch network.  The Commercial Division provides various
financial  products and services to corporate  and  middle-market  clients.  The
Investment  Division includes trust and fiduciary  services,  discount brokerage
services and services  for private  banking  clients.  The  Operations  Division
consists of  asset/liability  management  activities that include the investment
portfolio and the related gains/losses on sales of securities, as well as credit
risk management, bank operations, human resources and the controller's division.

FORWARD-LOOKING STATEMENTS

Certain statements contained in Trustmark's Management's Discussion and Analysis
of  Financial  Condition  and  Results  of  Operations  are  not  statements  of
historical fact and constitute  forward-looking statements within the meaning of
the Private  Securities  Litigation  Reform Act of 1995.  These  forward-looking
statements  relate to  anticipated  future  operating and financial  performance
measures,  including net interest margin, credit quality,  business initiatives,
growth  opportunities  and  growth  rates,  among  other  things.  Words such as
"expects," "anticipates,"  "believes," "estimates" and other similar expressions
are intended to identify these forward-looking  statements. Such forward-looking
statements are subject to certain risks,  uncertainties and assumptions.  Should
one  or  more  of  these  risks  materialize,  or  should  any  such  underlying
assumptions  prove  to be  significantly  different,  actual  results  may  vary
significantly from those anticipated,  estimated,  projected or expected.  These
risks could cause actual results to differ materially from current  expectations
of Management and include the following:

   o     The level of nonperforming  assets,  charge-offs and provision  expense
         can be  affected  by local,  state and  national  economic  and  market
         conditions as well as Management's  judgments regarding  collectability
         of loans.
   o     Material  changes in market  interest rates can materially  affect many
         aspects of Trustmark's  financial  condition and results of operations.
         Trustmark is exposed to the  potential  of losses  arising from adverse
         changes in market interest rates and prices which can adversely  impact
         the value of financial products, including securities, loans, deposits,
         debt and derivative financial instruments.  Factors that may affect the
         market  interest  rates include local,  regional and national  economic
         conditions;  utilization  and  effectiveness  of market  interest  rate
         contracts; and the availability of wholesale and retail funding sources
         to Trustmark. Many of these factors are outside Trustmark's control.



   o     Increases  in  prepayment  speeds of mortgage  loans  resulting  from a
         declining  interest  rate  environment  will have an impact on the fair
         value of the mortgage  servicing  portfolio which can materially affect
         Trustmark's results of operations.
   o     The costs and  effects  of  litigation  and of  unexpected  or  adverse
         outcomes in such litigation can materially affect  Trustmark's  results
         of operations.
   o     Competition  in loan and deposit  pricing,  as well as the entry of new
         competitors   into  our   markets   through  de  novo   expansion   and
         acquisitions,  among other means,  could have an effect on  Trustmark's
         operations in our existing markets.
   o     Trustmark  is subject to  regulation  by federal  banking  agencies and
         authorities  and the  Securities  and Exchange  Commission.  Changes in
         existing  regulations or the adoption of new regulations  could make it
         more costly for  Trustmark to do business or could force changes in the
         manner  Trustmark  does  business,   which  could  have  an  impact  on
         Trustmark's financial condition or results of operations.

Although   Management   believes  that  the   expectations   reflected  in  such
forward-looking  statements are  reasonable,  it can give no assurance that such
expectations will prove to be correct.  These statements are representative only
as of the date hereof,  and Trustmark  does not assume any  obligation to update
these  forward-looking  statements  or to update the reasons why actual  results
could differ from those projected in the forward-looking statements.

CRITICAL ACCOUNTING POLICIES

Trustmark's  consolidated  financial  statements are prepared in accordance with
accounting principles generally accepted in the United States of America,  which
require the use of estimates and assumptions that affect the amounts reported in
those consolidated  financial statements.  The following is a description of the
accounting  policies applied by Trustmark which are deemed "critical."  Critical
accounting  policies are defined as policies that are important to the portrayal
of  Trustmark's  financial  condition and results of operations and that require
Management's most difficult,  subjective or complex judgments.  Actual financial
results  could  differ  significantly  if different  judgments or estimates  are
applied in the application of these policies.

Allowance for Loan Losses
The allowance for loan losses is maintained at a level  Management and the Board
of Directors believe is adequate to absorb estimated  probable losses within the
loan portfolio.  A formal analysis is prepared monthly to assess the risk in the
loan  portfolio  and to determine the adequacy of the allowance for loan losses.
The analysis for loan losses  considers any identified  impairment and estimates
determined by applying specific allowance factors to the commercial and consumer
loan portfolios.

Commercial  loans as well as  commercial  real estate loans carry an  internally
assigned  risk  grade  based on a scale of one to ten.  An  allowance  factor is
assigned to each loan grade based on historical loan losses in addition to other
factors such as the level and trend of delinquencies,  classified and criticized
loans and nonperforming  loans.  Other factors are also taken into consideration
such as local,  regional and national economic trends,  industry and other types
of concentrations and loan loss trends that run counter to historical  averages.
All  classified  loans greater than $500 thousand are reviewed  quarterly by the
Asset Review  Department  to determine if a higher  allowance  factor  should be
applied to the loan based on a greater level of risk and probability of loss.

Consumer loans carry  allowance  factors  applied to pools of homogeneous  loans
such as direct and indirect loans,  credit cards, home equity loans, other types
of  revolving  consumer  lines of credit and  residential  mortgage  loans.  The
allowance factor applied to each pool is based on historical loan loss trends as
well  as  current  and  projected  trends  in  loan  losses.   Also  taken  into
consideration are trends in consumer  delinquencies,  consumer  bankruptcies and
the  effectiveness  of  Trustmark's  collection  function  as well  as  economic
conditions and trends referred to above.

Mortgage Servicing Rights
Mortgage  servicing  rights  are rights to service  mortgage  loans for  others,
whether the loans were acquired through purchase or loan origination.  Purchased
mortgage servicing rights are capitalized at cost. For loans originated and sold
where the servicing rights have been retained,  Trustmark  allocates the cost of
the loan  and the  servicing  right  based on their  relative  fair  values.  In
determining the fair value of mortgage  servicing  rights,  Trustmark  relies on
assumptions  regarding factors such as mortgage interest rates,  discount rates,
mortgage loan prepayment speeds,  market trends and industry demands. Any change
in these assumptions  could produce different fair values of mortgage  servicing
rights.  Impairment, if any, for mortgage servicing rights is recognized through
a valuation allowance with a corresponding charge to noninterest expense that is
determined using estimated fair values with the loans stratified by product type
and term. As of March 31, 2003,  mortgage  servicing rights had a gross carrying
amount of $58.9  million  with a valuation  allowance  of $19.2  million.  As of
year-end 2002,  mortgage  servicing  rights had a gross carrying amount of $61.3
million with a valuation allowance of $12.5 million.


Fair Values
Determining the fair value of net assets acquired through business combinations,
including  the  recognition  of  intangible  assets,  involves a high  degree of
judgment  and  complexity.  Certain  assets,  such as loans  held for sale,  are
accounted  for at the lower of cost or fair value.  Some of these  assets do not
have readily available market quotations and require an estimation of their fair
value. Additionally,  certain recorded assets, such as goodwill and core deposit
intangibles,  are subject to periodic impairment analysis. As of March 31, 2003,
Trustmark had unamortized goodwill totaling $48.0 million and other identifiable
intangible  assets  subject  to  amortization  totaling  $21.9  million.   These
intangible assets are evaluated for impairment periodically. Impairment, if any,
for  goodwill  and other  identifiable  intangible  assets  would be  charged to
noninterest expense.

BUSINESS COMBINATIONS

In June 2002, The Bottrell Insurance Agency, Inc., a wholly-owned  subsidiary of
TNB,  acquired  Chandler-Sampson  Insurance,  Inc.  (CSI)  located  in  Jackson,
Mississippi.  CSI was a  regional  leader in  school,  medical  malpractice  and
mid-market  business insurance and had total assets of approximately $2 million.
This business combination, which is not material to Trustmark, was accounted for
under the purchase method of accounting, and the results of operations have been
included in the financial  statements from the merger date. The pro forma impact
of this acquisition on Trustmark's results of operations is insignificant.

FINANCIAL SUMMARY HIGHLIGHTS

Trustmark's net income for the three months ended March 31, 2003,  totaled $24.5
million  compared  with $30.3  million  for the same  period in 2002.  Basic and
diluted  earnings per share were $0.41 for the first quarter of 2003, a decrease
of 14.6% when compared with $0.48 for the first quarter of 2002. Earnings during
the first  quarter 2003 included an after-tax  charge of $4.1 million,  or $0.07
per share,  associated  with  Trustmark's  voluntary early  retirement  program.
Trustmark  achieved  a return on  average  assets of 1.40%,  a return on average
equity of 14.88% and an  efficiency  ratio of 54.17% for the three  months ended
March  31,  2003.  Excluding  the  charge  for  the  early  retirement  program,
Trustmark's  performance  for the first  quarter  2003  resulted  in a return on
average assets of 1.63% and a return on average equity of 17.36%. These compared
with first quarter 2002 ratios of 1.79% for return on average assets, 18.22% for
return on average equity and 50.95% for the efficiency ratio. The charge for the
early retirement  program has been eliminated in the first quarter 2003 adjusted
return on average  assets  and  adjusted  return on  average  equity in order to
reflect these ratios on a comparable basis to the other periods presented.

RESULTS OF OPERATIONS

Net Interest Income
Net interest income is the principal  component of Trustmark's income stream and
represents the difference,  or spread, between interest and fee income generated
from  earning  assets and the  interest  expense  paid on deposits  and borrowed
funds.  Fluctuations  in  interest  rates as well as volume  and mix  changes in
earning  assets  and  interest-bearing  liabilities  can  materially  impact net
interest  income.  The net interest  margin (NIM) is computed by dividing  fully
taxable  equivalent net interest income by average  interest-earning  assets and
measures  how  effectively  Trustmark  utilizes its  interest-earning  assets in
relationship to the interest cost of funding them. The Yield/Rate Analysis Table
on page 16  shows  the  average  balances  for all  assets  and  liabilities  of
Trustmark and the interest income or expense  associated with earning assets and
interest-bearing liabilities. The yields and rates have been computed based upon
interest income and expense  adjusted to a fully taxable  equivalent (FTE) basis
using a 35% federal marginal tax rate for all periods shown.  Nonaccruing  loans
have been included in the average loan balances and interest  collected prior to
these  loans  having  been placed on  nonaccrual  has been  included in interest
income. Loan fees included in interest associated with the average loan balances
are immaterial.

Management has strategically reduced Trustmark's exposure to future increases in
interest rates by  restructuring  the balance sheet and utilizing  interest rate
contracts.  Balance  sheet  restructuring  has occurred by reducing  Trustmark's
utilization of wholesale funding,  which includes short-term  borrowings such as
federal funds  purchased,  repurchase  agreements and short-term  FHLB advances,
while  increasing  the reliance on liquidity  provided by maturing  investments.
Also,  Trustmark  has utilized  longer term,  fixed rate advances from the FHLB.
Trustmark  will  continue to manage the overall  risk  exposure  present  during
significant  movements in interest  rates and reduce the impact of interest rate
movement on net interest income. For additional discussion,  see Market/Interest
Rate Risk Management on page 26.


Net interest  income-FTE  for the quarter ended March 31, 2003,  decreased  $4.9
million,  or 6.4%, when compared with first quarter 2002. The continuing decline
in interest rates experienced  during 2003 and 2002 has impacted both assets and
liabilities.   Earning   asset   yields   declined   at  a  faster   rate   than
interest-bearing  liability  rates when comparing the first quarter of 2003 with
the same period in 2002,  resulting in a 46 basis point  decline in the NIM. The
decline  in the NIM was  also  affected  by  Trustmark's  use of  interest  rate
contracts,  which  provided $770 thousand of additional  interest  income as the
floor  reached its strike  price  during first  quarter  2002,  compared to zero
during first quarter 2003.
- --------------------------------------------------------------------------------
Trustmark Corporation
Yield/Rate Analysis Table
($ in thousands)



                                                          For the Three Months Ended March 31,
                                           --------------------------------------------------------------
                                                        2003                            2002
                                           -----------------------------   ------------------------------
                                             Average              Yield/     Average               Yield/
                                             Balance    Interest   Rate      Balance    Interest    Rate
                                           ----------   --------  ------   ----------   --------   ------
                                                                                  
Assets
Interest-earning assets:
    Federal funds sold and securities
         purchased under reverse
         repurchase agreements             $   29,700   $     82   1.12%   $   24,619   $     99    1.63%
    Securities - taxable                    1,644,002     20,155   4.97%    1,580,527     24,169    6.20%
    Securities - nontaxable                   160,966      3,183   8.02%      180,193      3,594    8.09%
    Loans, including loans held for sale    4,617,076     71,803   6.31%    4,470,931     79,358    7.20%
                                           ----------   --------           ----------   --------
    Total interest-earning assets           6,451,744     95,223   5.99%    6,256,270    107,220    6.95%
Cash and due from banks                       302,372                         285,818
Other assets                                  410,141                         416,476
Allowance for loan losses                     (75,143)                        (75,364)
                                           ----------                      ----------
        Total Assets                       $7,089,114                      $6,883,200
                                           ==========                      ==========

Liabilities and Shareholders' Equity
Interest-bearing liabilities:
    Interest-bearing deposits              $3,550,934     16,062   1.83%   $3,519,957     21,778    2.51%
    Federal funds purchased and
        securities sold under
        repurchase agreements                 926,205      2,726   1.19%      891,677      3,659    1.66%
    Borrowings                                716,569      5,032   2.85%      687,628      5,471    3.23%
                                           ----------   --------           ----------   --------
        Total interest-bearing liabilities  5,193,708     23,820   1.86%    5,099,262     30,908    2.46%
                                                        --------                        --------
Noninterest-bearing demand deposits         1,158,944                       1,039,334
Other liabilities                              69,053                          69,497
Shareholders' equity                          667,409                         675,107
                                           ----------                      ----------
        Total Liabilities and
            Shareholders' Equity           $7,089,114                      $6,883,200
                                           ==========                      ==========

        Net Interest Margin                               71,403   4.49%                  76,312    4.95%

Less tax equivalent adjustment                             2,206                           2,383
                                                        --------                        --------
        Net Interest Margin per Consolidated
             Statements of Income                       $ 69,197                        $ 73,929
                                                        ========                        ========

- --------------------------------------------------------------------------------
Average  interest-earning  assets for first  quarter  2003 were $6.452  billion,
compared  with $6.256  billion  for first  quarter  2002,  an increase of $195.5
million,  or 3.1%.  This  growth  is  primarily  seen in  average  loans,  which
increased  3.3%  during  first  quarter  2003 from the same  period in 2002,  as
Trustmark  effectively  utilized the liquidity from maturing  securities to fund
loan growth,  which yielded higher returns than  securities  during this period.
The yield on average earning assets dropped from 6.95% during first quarter 2002
to 5.99% for the same period in 2003, a decrease of 96 basis points, as a result
of the declining  interest rate environment.  This translated into a decrease in
interest  income-FTE during first quarter 2003 of $12.0 million,  or 11.2%, when
compared with first quarter 2002.


Average  interest-bearing  liabilities  for first  quarter 2003  totaled  $5.194
billion,  compared  with $5.099  billion for first  quarter 2002, an increase of
$94.4 million, or 1.9%. Average  interest-bearing  deposits increased as well as
federal  funds  purchased,   repurchase  agreements  and  borrowings.   Although
interest-bearing  liabilities have increased,  interest expense has continued to
decrease due to the declining  interest rate  environment.  The average rates on
interest-bearing liabilities for the first quarters of 2003 and 2002, were 1.86%
and 2.46%,  respectively,  a decrease of 60 basis  points.  As a result of these
factors,  total interest  expense for first quarter 2003 decreased $7.1 million,
or 22.9%, when compared with the prior year period.

Provision for Loan Losses
Trustmark's  provision for loan losses totaled $3.0 million for the three months
ended March 31,  2003,  compared  with $4.3 million for the same period in 2002.
During the first quarter of 2003,  the provision for loan losses equaled 103% of
net charge-offs  compared with 94% in the prior year period.  As a percentage of
average  loans,  the  provision  was 0.26% for first  quarter 2003 compared with
0.39%  for  first  quarter  2002.   The  provision  for  loan  losses   reflects
Management's  assessment  of the  adequacy of the  allowance  for loan losses to
absorb probable  losses inherent in the loan portfolio.  The amount of provision
for each period is  dependent  upon many  factors  including  loan  growth,  net
charge-offs,  changes in the composition of the loan  portfolio,  delinquencies,
Management's  assessment of loan portfolio quality,  the value of collateral and
general  economic  factors.  See further  discussion  of the  Allowance for Loan
Losses in  Critical  Accounting  Policies  beginning  on page 13, as well as the
discussion of Loans beginning on page 23.

Noninterest Income
Noninterest  income (NII)  consists of revenues  generated from a broad range of
banking and financial services.  NII totaled $41.2 million in first quarter 2003
compared  with $29.0 million in first quarter  2002.  NII  represented  30.7% of
total  revenues in first quarter 2003 versus 21.7% in first  quarter  2002.  The
comparative  components of noninterest  income for the three month periods ended
March 31, 2003 and 2002, are shown in the accompanying table on page 18.
- --------------------------------------------------------------------------------
Noninterest Income
($ in thousands)
                                          Quarter Ended
                                             March 31,
                                       -------------------
                                         2003       2002     $ Change   % Change
                                       --------   --------   --------   --------
Service charges on deposit accounts    $ 12,680   $ 11,424   $  1,256      11.0%
Other account charges and fees            6,625      7,001      (376)      -5.4%
Insurance commissions                     3,787      2,660      1,127      42.4%
Mortgage servicing fees                   4,326      4,322          4       0.1%
Trust service income                      2,311      2,519      (208)      -8.3%
Gains on sales of loans                   3,893      1,505      2,388     158.7%
Securities gains                          8,148        140      8,008    5720.0%
Other income                              (587)      (585)        (2)       0.3%
                                       --------   --------   --------
    Total Noninterest Income           $ 41,183   $ 28,986   $ 12,197      42.1%
                                       ========   ========   ========
- --------------------------------------------------------------------------------
The single  largest  component  of  noninterest  income  continues to be service
charges  for deposit  products  and  services,  which  increased  11.0% in first
quarter 2003 over the prior year period.  This increase was primarily the result
of courtesy overdraft protection,  which was introduced during the third quarter
of 2002, as well as from increased transaction volume.

Other  account  charges and fees totaled $6.6 million in first  quarter  2003, a
decrease of $376  thousand,  or 5.4%,  when compared with the prior year period.
Decreasing  revenues from market driven  products was the primary factor in this
decline as  reductions  were seen in cash  management,  brokerage  and  advisory
services and float-related revenues.  Offsetting this decrease were increases in
bankcard fees from the repricing of merchant  discount rates and increased debit
card usage by individuals.

Insurance  commissions  were $3.8 million in first quarter 2003 compared to $2.7
million in first  quarter  2002,  an increase of $1.1  million,  or 42.4%.  This
growth  was  primarily  from the CSI  business  combination,  intensified  sales
efforts and increased pricing by insurance companies.

During the three months ended March 31, 2003,  mortgage  servicing  fees totaled
$4.3  million,  maintaining  the level  from the prior  year  period.  Increased
prepayments  during  the  period  slowed  the  overall  growth  of the  mortgage
servicing portfolio.  Trustmark serviced mortgage loans with average balances of
$3.5 billion in first quarter 2003 and $3.6 billion in first quarter 2002.

Trust service income was $2.3 million for first quarter 2003, a decrease of $208
thousand  when  compared  with the prior year period,  as continued  weakness in
capital markets slowed growth in this area. Trustmark, which continues to be one
of the largest  providers  of asset  management  services in  Mississippi,  held
assets under administration of $6.6 billion at March 31, 2003.


Gains on sales of loans  were $3.9  million  in quarter  ended  March 31,  2003,
compared with $1.5 million in the prior year period.  During first quarter 2003,
Trustmark  recorded  gains  of $1.2  million  on the sale of  $19.2  million  in
high-yielding  delinquent GNMA loans from Trustmark's  servicing portfolio.  The
sale of these loans,  which were  government  guaranteed,  allowed  Trustmark to
eliminate costly collection  efforts.  Excluding the impact of this transaction,
gains  on  sales  of  loans  from  secondary   marketing  activity   experienced
volume-driven growth of $1.2 million during first quarter 2003 compared with the
same period in 2002 from an increased volume of branch-originated  loans and the
continued benefit of a falling interest rate environment.

Securities  gains  totaled $8.1 million  during first quarter 2003 compared with
$140 thousand during first quarter 2002. The increase experienced during 2003 is
primarily  from sales of available for sale (AFS)  securities  with a total fair
value of $99.1 million.  These securities were sold as recent  significant price
increases  provided the opportunity to restructure a portion of the portfolio to
reduce price volatility in an extremely low interest rate cycle.  Management has
always  regarded the investment  portfolio as an integral tool in the management
of interest rate risk.

Other income during the three month periods ended March 31, 2003 and 2002,  were
losses of $587  thousand and $585  thousand,  respectively.  First  quarter 2003
included a $300  thousand  gain on sale of premises and  equipment,  offset by a
$698  thousand loss on a fair value hedge  adjustment on the mortgage  servicing
portfolio.  Valuation  adjustments on Trustmark's  interest rate caps and floors
also affected other income significantly,  with losses of $269 thousand and $814
thousand  for the first  quarters of 2003 and 2002,  respectively.  Although the
intent  of  interest  rate  caps and  floors is to  provide  protection  against
excessive  interest rate movement over a period of years that may be detrimental
to  Trustmark's  earnings,  fair value  accounting  is used to carry  derivative
financial  instruments with changes in value recognized currently in earnings as
other income. These noncash charges against income may be reversed,  in whole or
in part, if interest rates increase prior to the expiration of the interest rate
caps currently held by Trustmark,  which expire in 2006. The fair value of these
interest rate contracts was $461 thousand and $8.5 million at March 31, 2003 and
2002, respectively.

Noninterest Expense
The  comparative  components of  noninterest  expense for the three months ended
March 31, 2003 and 2002, are shown in the accompanying table.
- --------------------------------------------------------------------------------
Noninterest Expense
($ in thousands)
                                          Quarter Ended
                                            March 31,
                                       -------------------
                                         2003       2002     $ Change   % Change
                                       --------   --------   --------   --------
Salaries and employee benefits         $ 35,924   $ 29,522   $  6,402      21.7%
Net occupancy - premises                  2,986      2,789        197       7.1%
Equipment expense                         3,710      3,895       (185)     -4.7%
Services and fees                         7,879      7,805         74       0.9%
Amortization/impairment of intangible
    assets                               11,655        986     10,669    1082.0%
Loan expense                              2,371      2,552       (181)     -7.1%
Other expense                             5,201      4,441        760      17.1%
                                       --------   --------   --------
    Total Noninterest Expense          $ 69,726   $ 51,990   $ 17,736      34.1%
                                       ========   ========   ========
- --------------------------------------------------------------------------------
Trustmark's  noninterest  expense  increased  $17.7 million,  or 34.1%, in first
quarter 2003 to $69.7  million,  compared  with $52.0  million in first  quarter
2002. One of the  contributing  factors of this increase was  Trustmark's  early
retirement program, which yielded a $6.3 million expense in the first quarter of
2003. The increase in noninterest  expense was also  attributable to Trustmark's
recognition  of $6.7 million in  impairment  allowance  for  mortgage  servicing
rights in first quarter 2003 compared  with a $2.0 million  impairment  reversal
for the same period in 2002. Growth in the impairment allowance results from the
continued  reduction in  long-term  mortgage  rates and the related  increase in
prepayments  of  mortgage  loans,  which had a  negative  impact on the value of
Trustmark's   mortgage  servicing   portfolio.   Excluding  these  items,  total
noninterest  expense  increased $2.7 million,  or 5.0%, when comparing the first
quarter of 2003 with the prior year period.


Control of  expenses  remains a  management  priority.  One method of  measuring
expense control is the efficiency  ratio,  which is calculated by dividing total
noninterest  expense by  tax-equivalent  net  interest  income plus  noninterest
income and  demonstrates  how much a company  spends for each  dollar of revenue
earned.  Trustmark's  efficiency ratio was 54.17% for the first quarter of 2003,
compared  with 50.95% for the same  period in 2002.  Certain  transactions  that
occurred  during  the  periods  have been  excluded  from net  interest  income,
noninterest  income and  noninterest  expense in order to reflect the efficiency
ratio calculation on a comparable basis for the periods  presented.  Noninterest
expense was reduced for impairment of mortgage  servicing rights of $6.7 million
in first quarter 2003 and increased by the $2.0 million  impairment  reversal in
first  quarter  2002.  Noninterest  expense was also reduced by the $6.3 million
charge  for the early  retirement  program  during  the first  quarter  of 2003.
Noninterest income has been reduced by securities gains of $8.1 million and $140
thousand  for the first  quarter of 2003 and 2002,  respectively.  In  addition,
noninterest income has been increased by valuation adjustments for interest rate
contracts of $269  thousand and $814  thousand for the first quarter of 2003 and
2002, respectively.

Salaries and employee  benefits,  the largest  category of noninterest  expense,
were $35.9  million in first  quarter  2003 and $29.5  million in first  quarter
2002, an increase of $6.4  million,  or 21.7%.  This increase is primarily  from
$6.3 million of expense  recognized for Trustmark's  early  retirement  program.
This program was accepted by 116 employees,  or 4.75% of the  workforce,  and is
expected to result in significant  savings  during the remainder of 2003.  These
savings should also enhance earnings in 2004.

During first quarter 2003, net  occupancy-premises  expense was $3.0 million, an
increase of $197 thousand,  over the prior year period, and was partially offset
by the $185 thousand decrease in equipment expense for the same period. Services
and fees showed a minor  change from the prior  period,  with an increase of $74
thousand in first quarter 2003 from first quarter 2002. Loan expense experienced
a minor decrease of $181 thousand  during first quarter 2003 from the prior year
level.

Amortization/impairment  expense associated with intangible assets totaled $11.7
million for first quarter 2003, compared with $986 thousand in the first quarter
of 2002. The increase  experienced  during the 2003 period included $6.7 million
for  additional  impairment of mortgage  servicing  rights  compared with a $2.0
million impairment  reversal in the prior period. This charge against income may
be reversed,  in whole or in part, if refinancing  slows or the expected life of
the mortgage servicing portfolio  lengthens.  Amortization of mortgage servicing
rights increased by $2.1 million as a result of increased  refinancings during a
period of historically low interest rates,  which shortened the expected life of
the mortgage servicing  portfolio and required a faster amortization of existing
mortgage  servicing  rights.  The 2003 period  also  included  $138  thousand of
amortization of insurance  customer  relationship  intangibles from the business
combination with CSI completed in June 2002.

Income Taxes
For the quarter ended March 31, 2003,  Trustmark's  combined  effective tax rate
was 35.0%,  compared with 34.9% for first quarter 2002.  The slight  increase in
Trustmark's effective tax rate is due to immaterial changes in various permanent
items as a percentage of pretax income.

LIQUIDITY

The liquidity position of Trustmark is monitored on a daily basis by Trustmark's
Treasury  department.   In  addition,  the  Asset/Liability   Committee  reviews
liquidity  on a regular  basis and  approves  any changes in  strategy  that are
necessary as a result of anticipated  balance sheet or cash flow changes.  Also,
on a monthly  basis,  Management  compares  Trustmark's  liquidity  position  to
established corporate policies.  Trustmark was able to improve overall liquidity
capacity  over the last  year,  as  indicated  by the  reduction  in the loan to
deposit  ratio and  reliance  on  wholesale  funding.  The  ability to  maintain
consistent cash flows from operations as well as adequate  capital also enhances
Trustmark's liquidity.

The  primary  source of  liquidity  on the asset side of the  balance  sheet are
maturities and cash flows from both loans and securities, as well as the ability
to sell certain loans and  securities.  With mortgage rates at historical  lows,
increased  prepayments on mortgage loans have also provided an additional source
of liquidity for Trustmark. Liquidity on the liability side of the balance sheet
is generated  primarily through growth in core deposits.  To provide  additional
liquidity,   Trustmark   utilizes   economical   short-term   wholesale  funding
arrangements  for federal funds purchased and securities  sold under  repurchase
agreements  in both  regional and  national  markets.  At March 31, 2003,  these
arrangements gave Trustmark  approximately $1.412 billion in borrowing capacity,
compared  with $1.482  billion as of December 31, 2002.  In addition,  Trustmark



maintains a borrowing  relationship with the FHLB, which provided $125.0 million
in  short-term  advances and $457.7  million in long-term  advances at March 31,
2003,  compared with $107.7 million in short-term advances and $475.0 million in
long-term  advances at December 31, 2002. These advances are collateralized by a
blanket  lien  on  Trustmark's  single-family,  multi-family,  home  equity  and
commercial mortgage loans. Under the existing borrowing agreement, Trustmark has
$513.2 million  available in unused FHLB advances.  Another  borrowing source is
the Federal  Reserve  Discount  Window  (Discount  Window).  At March 31,  2003,
Trustmark had approximately  $539 million available in borrowing capacity at the
Discount  Window from pledges of auto loans and  securities,  compared with $541
million  available at December 31, 2002. In June 2002,  Trustmark entered into a
two-year  line of credit  arrangement  enabling  borrowings  up to $50  million,
subject to certain  financial  covenants.  At March 31, 2003,  Trustmark had not
drawn upon this line of credit.

On April 16, 2003, Trustmark filed a registration statement on Form S-3 with the
Securities  and  Exchange  Commission  (SEC)  utilizing  a "shelf"  registration
process, which became effective May 2, 2003. Under this shelf process, Trustmark
may offer  from time to time any  combination  of  securities  described  in the
prospectus in one or more  offerings up to a total amount of $200  million.  The
securities  described in the  prospectus  include  common and  preferred  stock,
depositary  shares,  debt securities,  junior  subordinated  debt securities and
trust preferred securities. Net proceeds from the sale of the offered securities
may be used to redeem or repurchase  outstanding  securities,  repay outstanding
debt,  finance  acquisitions  of companies and other assets and provide  working
capital.

On April 9, 2002, the shareholders approved a proposal by the Board of Directors
to amend the Articles of  Incorporation  to  authorize  the issuance of up to 20
million preferred shares with no par value. The Board of Directors believes that
authorizing preferred shares for potential issuance is advisable and in the best
interests of Trustmark. The ability to issue preferred shares in the future will
provide Trustmark with additional  financial and management  flexibility.  As of
March 31, 2003, no such shares have been issued.

CAPITAL RESOURCES

At March 31,  2003,  Trustmark's  shareholders'  equity  was $660.6  million,  a
decrease of $18.9 million,  or 2.8%,  from its level at December 31, 2002.  This
decline in  shareholders'  equity  resulted  from an increased  amount of common
shares repurchased and dividends paid when compared to first quarter net income.

Common Stock Repurchase Program
On October 15, 2002, the Board of Directors of Trustmark  authorized the current
plan to  repurchase  up to 5% of common  stock,  or  approximately  3.1  million
shares,  subject to market conditions and management  discretion.  Collectively,
the capital management plans adopted by Trustmark since 1998 have authorized the
repurchase  of 18.5  million  shares of common  stock.  Pursuant to these plans,
Trustmark has repurchased  approximately 16.9 million shares for $357.2 million,
including 1.3 million shares during the first quarter of 2003 for $31.5 million.
The current  remaining  authorization  is approximately  1.6 million shares.  On
October 15, 2002, the Board of Directors of Trustmark authorized the transfer of
$200.0 million from retained  earnings to surplus to replenish funds used in the
common stock repurchase program.

Dividends
Dividends  for the first three months of 2003 were $0.165 per share,  increasing
10.0% when compared with dividends of $0.15 per share for the prior-year period.
Trustmark's  dividend  payout  ratio,  which is dividends  per share  divided by
earnings per share, was 40.2% for the first quarter of 2003, compared with 31.3%
for the same period in 2002.

Regulatory Capital
Trustmark  and TNB are  subject  to  minimum  capital  requirements,  which  are
administered by various federal regulatory agencies. These capital requirements,
as defined by federal guidelines,  involve quantitative and qualitative measures
of assets,  liabilities and certain  off-balance sheet  instruments.  Failure to
meet minimum capital  requirements can initiate certain mandatory,  and possibly
additional discretionary,  actions by regulators that, if undertaken, could have
a direct material effect on the financial  statements of both Trustmark and TNB.
Trustmark aims not only to exceed the minimum  capital  standards,  but also the
well capitalized  guidelines for regulatory capital.  Management believes, as of
March 31, 2003,  that  Trustmark and TNB have met or exceeded all of the minimum
capital  standards for the parent company and its primary banking  subsidiary as
established  by  regulatory  requirements.  At March 31,  2003,  the most recent
notification  from the Office of the  Comptroller of the Currency  (OCC),  TNB's
primary federal banking  regulator,  categorized TNB as well capitalized.  To be
categorized in this manner,  TNB must maintain minimum total risk-based,  Tier 1
risk-based and Tier 1 leverage ratios (defined in applicable regulations) as set
forth in the accompanying  table. There are no significant  conditions or events
that have occurred since the OCC's  notification  that Management  believes have
affected TNB's present classification.


Regulatory Capital
($ in thousands)


                                                                   March 31, 2003
                                          ---------------------------------------------------------------
                                                                                       Minimum Regulatory
                                            Actual Regulatory    Minimum Regulatory      Provision to be
                                                 Capital          Capital Required      Well Capitalized
                                           ------------------    ------------------    ------------------
                                            Amount      Ratio     Amount      Ratio     Amount      Ratio
                                           --------    ------    --------    ------    --------    ------
                                                                                 
Total Capital (to Risk Weighted Assets)
   Trustmark Corporation                   $636,985    13.60%    $374,794     8.00%           -         -
   Trustmark National Bank                  617,917    13.46%     367,156     8.00%    $458,944    10.00%
Tier 1 Capital (to Risk Weighted Assets)
   Trustmark Corporation                   $578,222    12.34%    $187,397     4.00%           -         -
   Trustmark National Bank                  560,368    12.21%     183,578     4.00%    $275,367     6.00%
Tier 1 Capital (to Average Assets)
   Trustmark Corporation                   $578,222     8.24%    $210,457     3.00%           -         -
   Trustmark National Bank                  560,368     8.17%     205,871     3.00%    $343,119     5.00%

- --------------------------------------------------------------------------------
EARNING ASSETS

Earning  assets  serve as the  primary  revenue  streams for  Trustmark  and are
comprised of  securities,  loans,  federal funds sold and  securities  purchased
under resale agreements.  At March 31, 2003, earning assets were $6.625 billion,
or 90.68% of total  assets,  compared  with $6.453  billion,  or 90.40% of total
assets at December 31, 2002, an increase of $171.6 million, or 2.7%. The primary
component of this growth was an 8.5% increase in total  securities as Management
decided to replenish the securities  portfolio after large  securities  sales in
the latter part of 2002 and first quarter 2003.

Securities
The  securities  portfolio  consists  primarily  of debt  securities,  which are
utilized to provide Trustmark with a quality investment alternative and a stable
source of interest income,  as well as collateral for pledges on public deposits
and repurchase agreements.  Additionally,  the securities portfolio is used as a
tool to manage risk from movements in interest rates,  to support  profitability
and to offset risks incurred by business units.  When evaluating the performance
of the securities  portfolio,  Management considers not only interest income but
also the flexibility  and liquidity  provided by changes in fair value. At March
31, 2003, Trustmark's  securities portfolio totaled $1.967 billion,  compared to
$1.812 billion at December 31, 2002, an increase of $154.8 million, or 8.5%.

The  securities  portfolio  is a powerful  risk  management  tool which  enables
Management to control both the invested  balance and the duration of securities.
During the third  quarter of 2002,  significant  price  changes in the portfolio
enabled  Trustmark to sell securities with a total fair value of $216.5 million.
During first quarter 2003,  Trustmark sold  additional  securities  with a total
fair value of $99.1 million. These transactions enabled Trustmark to restructure
a portion  of its  investment  portfolio  by  investing  the  proceeds  in short
duration mortgage related securities.  This strategy reduced the duration of the
portfolio  from an estimated  2.83 years at December  31, 2001,  to an estimated
1.94 years at December  31, 2002,  and then to an estimated  1.73 years at March
31,  2003.  By reducing  the duration of the  portfolio,  Trustmark  has reduced
exposure to volatile interest rates while increasing  liquidity and flexibility.
Management  intends to keep the portfolio near  historically low duration levels
while the interest rate cycle is in a stage of lower yields.

Available for sale (AFS)  securities  are carried at their  estimated fair value
with unrealized gains or losses  recognized,  net of taxes, in accumulated other
comprehensive income, a separate component of shareholders' equity. At March 31,
2003, AFS securities  totaled $1.524  billion,  which  represented  77.5% of the
securities  portfolio,  compared to $1.263  billion,  or 69.7%,  at December 31,
2002. At March 31, 2003,  AFS securities  consisted of U.S.  Treasury and Agency
securities,  obligations of states and political subdivisions,  mortgage related
securities and other securities,  primarily Federal Reserve Bank and FHLB stock.
At March 31, 2003,  unrealized gains on AFS securities of $13.8 million,  net of
$5.3  million of deferred  income  taxes,  were  included in  accumulated  other
comprehensive  income,  compared with $22.8  million,  net of $8.7  million,  at
December  31,  2002.   These  unrealized  gains  are  significant  in  providing
flexibility when strategic opportunities arise.


Held to maturity  (HTM)  securities  are carried at amortized cost and represent
those  securities  that  Trustmark  both  intends and has the ability to hold to
maturity.  At  March  31,  2003,  HTM  securities  totaled  $442.9  million  and
represented  22.5% of the total  portfolio,  compared  with $549.2  million,  or
30.3%,  at the end of 2002.  This  decrease  is from  calls  and  maturities  of
securities,  the  proceeds  of which  were  used to  purchase  shorter  duration
mortgage related securities.

Management  continues to focus on asset quality as one of the strategic goals of
the  securities  portfolio,  which is evidenced by the investment of over 86% of
the portfolio in U.S. Treasury and U.S. Government agencies obligations.

Loans and Allowance for Loan Losses
Loans,  including  loans held for sale,  represented  69.9% of earning assets at
March 31, 2003,  compared with 71.6% at year-end 2002. At March 31, 2003,  loans
totaled $4.631 billion,  a nominal  increase from its level of $4.617 billion at
December 31, 2002.  Real estate lending  continued to be positively  impacted by
record low interest rates while other loan areas have been  negatively  affected
by a weakened economy.

Trustmark  makes loans in the normal  course of  business to certain  directors,
including  their  immediate  families and  companies in which they are principal
owners. Such loans are made on substantially the same terms,  including interest
rates  and  collateral,   as  those   prevailing  at  the  time  for  comparable
transactions with unrelated persons and do not involve more than the normal risk
of collectibility at the time of the transaction.

Trustmark's  lending policies have resulted in consistently sound asset quality.
One measure of asset quality in the financial  services industry is the level of
nonperforming  assets. The details of Trustmark's  nonperforming assets at March
31,  2003  and  December  31,  2002,  are  shown  in  the  accompanying   table.
- --------------------------------------------------------------------------------
Nonperforming Assets
($ in thousands)
                                                     March 31,      December 31,
                                                       2003             2002
                                                   ------------     ------------
Nonaccrual and restructured loans                  $     31,769     $     31,642
Other real estate (ORE)                                   7,281            6,298
                                                   ------------     ------------
     Total nonperforming assets                    $     39,050     $     37,940
                                                   ============     ============

Accruing loans past due 90 days or more            $      2,512     $      2,946
                                                   ============     ============

Nonperforming assets/total loans and ORE                  0.84%            0.82%
                                                   ============     ============
- --------------------------------------------------------------------------------
Total  nonperforming  assets increased $1.1 million,  or 2.9%,  during the first
quarter of 2003.  Most of this growth was seen in the area of other real estate,
which increased by $983 thousand, or 15.6% from the 2002 year-end level, and was
comprised primarily of three larger commercial  customers.  The reserve coverage
of  nonperforming  loans  remains  strong at 235.7% at March 31, 2003, a nominal
change from 236.3% at December 31, 2002.

At March 31, 2003, the allowance for loan losses was $74.9  million,  increasing
$96  thousand,  or 0.1%,  from the  year-end  2002 level of $74.8  million.  The
allowance for loan losses  represented 1.62% of total loans outstanding at March
31, 2003, and December 31, 2002. As of March 31, 2003,  Management believes that
the  allowance  for loan  losses  provides  adequate  protection  in  regards to
charge-off experience and the current level of nonperforming assets.

Net charge-offs  were $2.9 million,  or 0.26%, of average loans, for the quarter
ended March 31, 2003, compared with $4.6 million, or 0.42% of average loans, for
the prior year period.  This  improvement is primarily  from gross  charge-offs,
which  decreased  $1.7 million,  or 24.2%,  when comparing the first quarters of
2003 and 2002.  First  quarter  2002  charge-offs  were  affected by four larger
commercial loan losses totaling $2.1 million.

Other Earning Assets
Federal funds sold and securities purchased under reverse repurchase  agreements
were $27.0 million at March 31, 2003, an increase of $3.1 million, when compared
with year-end 2002. Trustmark utilizes these products as a short-term investment
alternative whenever it has excess liquidity.


DEPOSITS AND OTHER INTEREST-BEARING LIABILITIES

Trustmark's  deposit base is its primary  source of funding and consists of core
deposits  from the  communities  served  by  Trustmark.  Deposits  include  both
interest-bearing and noninterest-bearing demand accounts, savings, money market,
certificates of deposits and individual retirement accounts. Total deposits were
$4.978  billion at March 31, 2003,  compared with $4.686 billion at December 31,
2002, an increase of $291.7 million,  or 6.2%.  This growth  primarily came from
seasonal increases in public interest-bearing demand deposits.  During the first
quarter of 2003,  interest-bearing  deposits increased $319.0 million,  or 9.3%,
while noninterest-bearing deposits decreased $27.3 million, or 2.2%. Trustmark's
deposit mix remains  favorable with  noninterest-bearing  deposits  representing
24.6% of total deposits at March 31, 2003, compared with 26.7% at year-end 2002.
Trustmark  will  continue to seek  deposits by expanding  its presence in higher
growth markets and evaluating additional wholesale deposit funding sources.

Short-term borrowings consist of federal funds purchased,  securities sold under
repurchase agreements, FHLB borrowings and the treasury tax and loan note option
account.  Short-term  borrowings  totaled  $1.138  billion at March 31,  2003, a
decrease  of $92.6  million,  compared  with $1.231  billion at  year-end  2002.
Trustmark  has used the  liquidity  created by  maturing  securities  as well as
increased core deposits to reduce reliance on wholesale funding.

Long-term FHLB advances  totaled $457.7 million at March 31, 2003, a decrease of
$17.3 million from December 31, 2002.  These totals  include  $250.0  million in
advances with variable rates adjusting  quarterly,  while the remaining advances
are fixed rate,  primarily maturing from 2004 to 2006.  Trustmark's use of these
advances  is  significant  in that it  reduces  the  volatility  of  Trustmark's
wholesale funding base by using long-term fixed rate products.

CONTINGENCIES

Trustmark  and its  subsidiaries  are parties to lawsuits  and other claims that
arise in the ordinary  course of business.  Some of the lawsuits  assert  claims
related  to the  lending,  collection,  servicing,  investment,  trust and other
business  activities;  and some of the lawsuits  allege  substantial  claims for
damages.  The cases are being  vigorously  contested.  In the regular  course of
business,  Management evaluates estimated losses or costs related to litigation,
and provision is made for anticipated losses whenever  Management  believes that
such losses are probable and can be reasonably  estimated.  In recent years, the
legal  environment in Mississippi  has been  considered by many to be adverse to
business  interests  in regards to the overall  treatment  of tort and  contract
litigation  as well as the  award of  punitive  damages.  However,  tort  reform
legislation that became effective  January 1, 2003, may reduce the likelihood of
unexpected sizable awards. At the present time,  Management  believes,  based on
the  advice  of legal  counsel,  that the  final  resolution  of  pending  legal
proceedings  will  not  have  a  material  impact  on  Trustmark's  consolidated
financial position or results of operations.

At December 31, 2002,  Trustmark's  pension plan was  underfunded,  requiring an
accrual for minimum pension liability of $5.7 million.  During the first quarter
of 2003, the Board of Directors  approved a  tax-deductible  contribution to the
pension plan in the amount of $7.0 million.  A minimum pension liability of $5.7
million will be reevaluated at the plan's measurement date, October 31, 2003.

ASSET/LIABILITY MANAGEMENT

Overview
Market risk is the risk of loss arising from  adverse  changes in market  prices
and rates.  Trustmark has risk management policies to monitor and limit exposure
to market risk.  Trustmark's market risk is comprised primarily of interest rate
risk created by core banking  activities.  Interest rate risk is the risk to net
interest  income  represented by the impact of higher or lower  interest  rates.
Management continually develops and applies cost-effective  strategies to manage
these  risks.  The  Asset/Liability  Committee  sets  the  day-to-day  operating
guidelines,  approves  strategies  affecting net interest income and coordinates
activities  within policy limits  established  by the Board of Directors.  A key
objective of the asset/liability  management program is to quantify, monitor and
manage interest rate risk and to assist  Management in maintaining  stability in
the net interest margin under varying interest rate environments.

Market/Interest Rate Risk Management
The  primary  purpose  in  managing  interest  rate  risk is to  invest  capital
effectively and preserve the value created by the core banking business. This is
accomplished  through the development and  implementation  of lending,  funding,
pricing  and  hedging  strategies  designed  to  maximize  net  interest  income
performance  under  varying  interest  rate  environments  subject  to  specific
liquidity and interest rate risk guidelines.


Management  has  continued  its  concerted  effort  to  decrease  interest  rate
sensitivity through changes to the balance sheet mix and risk characteristics of
assets and  liabilities  as well as through  purchases of interest  rate hedging
instruments. Trustmark has significantly reduced its exposure to rising interest
rates while experiencing  lower growth in net interest income.  During 2002, the
balance sheet shifted from a liability  sensitive position to an asset sensitive
position,  where it remains at March 31, 2003.  Modeling  static  balances  from
March 31, 2003, it is estimated that net interest income may increase,  possibly
as much as 8%, in a one-year,  shocked,  up 200 basis point rate shift scenario,
compared to a base case, flat rate scenario for the same time period.  This is a
slight  improvement  in exposure to rising  rates when  compared to December 31,
2002.  In a shocked,  down 200 basis point rate shift  scenario,  net income may
decline  from the base  case as much as 13% in a  one-year  horizon.  Management
cannot  provide  any  assurance  about the actual  effect of changes in interest
rates on net interest income.  The estimates provided do not include the effects
of possible  strategic changes in the balances of various assets and liabilities
throughout  the  remainder  of 2003.  Management  will  continue  to monitor the
balance  sheet as  balances  change and  maintain a  proactive  stance to manage
interest rate risk.

The primary tool  utilized by the  Asset/Liability  Committee  is a  third-party
modeling system which is widely accepted in the financial institutions industry.
This system  provides  information  used to evaluate  exposure to interest  rate
risk,  project  earnings and manage balance sheet growth.  This modeling  system
utilizes  the  following  scenarios  in order  to give  Management  a method  of
evaluating  Trustmark's interest rate, basis and prepayment risk under different
conditions:

   o     Rate shocked scenarios of up-and-down 100, 200 and 300 basis points.
   o     Yield curve twist of +/- 2 standard  deviations of the change in spread
         of the three-month Treasury bill and the 10-year Treasury note yields.
   o     Basis  risk  scenarios  where  federal  funds/LIBOR  spread  widens and
         tightens  to the high and low  spread  determined  by using 2  standard
         deviations.
   o     Prepayment  risk  scenarios  where  projected   prepayment   speeds  in
         up-and-down  200 basis  point rate  scenarios  are  compared to current
         projected prepayment speeds.

A static gap analysis is a tool used mainly for interest rate risk  measurement,
in which the balance sheet amounts as of a certain date are stratified  based on
repricing  frequency.  The assets and  liabilities  repricing  in a certain time
frame are then compared to determine the gap between assets and  liabilities for
that  period.  If assets are greater than  liabilities  for the  specified  time
period,  then  the  balance  sheet  is  said to be in an  asset  gap,  or  asset
sensitive,  position. This analysis is helpful in that it highlights significant
short-term repricing volume mismatches.  Management's assumptions related to the
prepayment  of certain  loans and  securities,  as well as the maturity for rate
sensitive  assets and  liabilities,  are  utilized  for  sensitivity  static gap
analysis.  Three-month  gap analysis  projected at March 31, 2003,  reflected an
asset gap of $22 million, shifting from a liability gap of $234 million at March
31, 2002. One-year gap analysis projected at March 31, 2003,  reflected an asset
gap of $258  million,  an  improvement  from a liability  gap of $146 million at
March 31, 2002. This new static gap analysis  indicates that Trustmark is better
positioned for the possibility of a rising interest rate environment.

As part of Trustmark's  risk management  strategy in the mortgage  banking area,
various  derivative  instruments  such as  interest  rate lock  commitments  and
forward  sales  contracts  are utilized.  Forward  contracts  are  agreements to
purchase  or sell  securities  or other  money  market  instruments  at a future
specified  date at a specified  price or yield.  Trustmark's  obligations  under
forward contracts  consist of commitments to deliver mortgage loans,  originated
and/or purchased, in the secondary market at a future date. Effective January 1,
2003,  Trustmark has  redesignated  these  derivative  instruments as fair value
hedges as permitted by SFAS No. 133, "Accounting for Derivatives Instruments and
Hedging  Activities," as amended.  Under SFAS No. 133,  changes in the values of
derivatives  designated as fair value hedges are recognized in earnings. In this
case  Trustmark  would  recognize  changes  in  the  values  of  the  designated
derivatives  in  earnings  simultaneously  with  changes  in the  values  of the
designated  hedged loans. To the extent changes in the values of the derivatives
are 100% effective in offsetting changes in the values of hedged loans, the fair
value  adjustments on the derivatives and hedged loans would offset one another.
In contrast,  Trustmark's previous designation of these derivatives as cash flow
hedges  resulted  in changes in value  being  recognized  in  accumulated  other
comprehensive  income, net of taxes, a component of Shareholders' Equity, and in
earnings.  Management  anticipates  that  this  change  will help  mitigate  the
potential  for earnings  volatility  related to the  valuation of these  hedging
instruments in the future.


Trustmark continued a risk controlling strategy utilizing caps and floors, which
may be further  implemented  over time. As of March 31, 2003,  Trustmark was not
utilizing interest rate floors but had interest rate cap contracts with notional
amounts  totaling  $300 million,  which mature in 2006.  The intent of utilizing
these financial instruments is to reduce the risk associated with the effects of
significant  movements  in  interest  rates.  Caps  and  floors,  which  are not
designated as hedging instruments for accounting purposes, are options linked to
a notional principal amount and an underlying indexed interest rate. Exposure to
loss on these options will increase or decrease as interest rates fluctuate.

Another  tool used for interest  rate risk  management  is interest  rate swaps.
Interest rate swaps are  derivative  contracts  under which two parties agree to
make interest  payments on a notional  principal  amount. In a generic swap, one
party pays a fixed interest rate and receives a floating interest rate while the
other party  receives a fixed  interest rate and pays a floating  interest rate.
During April 2003,  Trustmark initiated four separate interest rate swaps with a
total notional principal amount of $100 million. Trustmark initiated these swaps
to  mitigate  the  effects  of further  changes  in the fair  value of  specific
noncallable, nonprepayable, fixed rate advances from the FHLB by agreeing to pay
a  floating  interest  rate tied to LIBOR.  The swap  contracts  are tied to the
maturity of four separate FHLB advances maturing between 2005 and 2006.

RECENT PRONOUNCEMENTS

In April 2003, the Financial  Accounting  Standards Board (FASB) issued SFAS No.
149,  "Amendment  of  Statement  133  on  Derivative   Instruments  and  Hedging
Activities."  This  statement  amends and  clarifies  financial  accounting  and
reporting for derivative  instruments,  including certain derivative instruments
embedded in other contracts  (collectively  referred to as derivatives)  and for
hedging activities under SFAS No. 133. This statement is effective for contracts
entered  into or modified  after June 30,  2003,  and for hedging  relationships
designated  after June 30, 2003.  Management is in the process of evaluating the
impact of this  statement  but does not expect it to have a  material  impact on
Trustmark's consolidated financial position and results of operations.





ITEM 3.  QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

The information required by this item is included in "Market/Interest  Rate Risk
Management"  (pages 26-27) of "Item 2.  Management's  Discussion and Analysis of
Financial Condition and Results of Operations."

ITEM 4.  CONTROLS AND PROCEDURES

For the period ending March 31, 2003,  Trustmark  evaluated the effectiveness of
the design and operation of its disclosure  controls and procedures  pursuant to
Rules 13a-14 and 15d-14 under the  Securities  Exchange Act of 1934,  as amended
(Exchange  Act) ,  under  the  supervision  and with  the  participation  of its
management,  including  the  Chief  Executive  Officer  and the  Treasurer  (the
Principal  Financial Officer).  Based upon this evaluation,  the Chief Executive
Officer and the  Treasurer  concluded  that,  as of March 31, 2003,  Trustmark's
disclosure  controls and  procedures  were  adequate to ensure that  information
required to be disclosed  by  Trustmark in the reports  filed or submitted by it
under the Exchange Act is recorded,  processed,  summarized and reported  within
the time periods specified in the rules and forms of the Securities and Exchange
Commission. Subsequent to this review, there have been no significant changes in
Trustmark's  internal  controls  or in other  factors  that could  significantly
affect these controls.

PART II.  OTHER INFORMATION

ITEM 1.  LEGAL PROCEEDINGS

There were no material  developments for the quarter ended March 31, 2003, other
than those  disclosed  in the Notes to  Consolidated  Financial  Statements  and
Management's Discussion and Analysis of this Form 10-Q.

ITEM 6.  EXHIBITS AND REPORTS ON FORM 8-K

A.   Exhibits

     The  exhibits  listed  in the  Exhibit  Index  are  filed  herewith  or are
     incorporated herein by reference.

B.   Reports on Form 8-K

     1.   On January 21, 2003,  Trustmark  filed a report on Form 8-K announcing
          its financial results for the period ended December 31, 2002.
     2.   On January 28, 2003,  Trustmark  filed a report on Form 8-K announcing
          that  Chairman  and Chief  Executive  Officer  Richard G.  Hickson was
          making a  presentation  to analysts  attending  the 2003 Salomon Smith
          Barney  Financial  Services   Conference.   The  report  included  the
          financial data that was presented at the conference.
     3.   On February 11, 2003,  Trustmark filed a report on Form 8-K announcing
          the results of a voluntary early retirement program.









                                   SIGNATURES

Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned hereunto duly authorized.

                              TRUSTMARK CORPORATION


BY:    /s/ Richard G. Hickson                     BY:    /s/ Zach L. Wasson
       ----------------------                            ------------------
       Richard G. Hickson                                Zach L. Wasson
       Chairman of the Board, President                  Treasurer (Principal
       & Chief Executive Officer                         Financial Officer)

DATE:  May 14, 2003                               DATE:  May 14, 2003







                                  EXHIBIT INDEX

10-a    Long Term Incentive Plan - Stock Options for  key employees of Trustmark
        Corporation and its  subsidiaries and  members of the Board of Directors
        of Trustmark, as amended October 1, 2002.

99-a    Certification by Chief Executive Officer pursuant to 18 U.S.C. ss. 1350.

99-b    Certification by Chief Executive Officer  pursuant to Section 302 of the
        Sarbanes-Oxley Act of 2002.

99-c    Certification by Chief Financial Officer pursuant to 18 U.S.C. ss. 1350.

99-d    Certification by Chief Financial Officer  pursuant to Section 302 of the
        Sarbanes-Oxley Act of 2002.

All other exhibits are omitted,  as they are inapplicable or not required by the
related instructions.




                                                                    Exhibit 99-a

                                CERTIFICATION BY
                             CHIEF EXECUTIVE OFFICER
                     TRUSTMARK CORPORATION AND SUBSIDIARIES
                         PURSUANT TO 18 U.S.C. ss. 1350


I,  Richard G.  Hickson,  Chairman  of the Board,  President  & Chief  Executive
Officer of Trustmark  Corporation and Subsidiaries  (Trustmark),  hereby certify
that the  accompanying  report on Form 10-Q (Report) for the period ending March
31, 2003,  and filed with the  Securities  and Exchange  Commission  on the date
hereof  pursuant  to Section  13(a) of the  Securities  Exchange  Act of 1934 by
Trustmark, fully complies with the requirements of that section.

I further certify that the information  contained in the Report fairly presents,
in all material  aspects,  the financial  condition and results of operations of
Trustmark.



BY:    /s/ Richard G. Hickson
       ----------------------
       Richard G. Hickson
       Chairman of the Board, President
       & Chief Executive Officer

DATE:  May 14, 2003







                                                                    Exhibit 99-b

                                CERTIFICATION BY
                             CHIEF EXECUTIVE OFFICER
                     TRUSTMARK CORPORATION AND SUBSIDIARIES
                                   PURSUANT TO
                               SECTION 302 OF THE
                           SARBANES-OXLEY ACT OF 2002


I, Richard G. Hickson, certify that:

     1)   I have  reviewed  this  quarterly  report  on Form  10-Q of  Trustmark
          Corporation and Subsidiaries;

     2)   Based on my  knowledge,  this  quarterly  report  does not contain any
          untrue  statement of a material  fact or omit to state a material fact
          necessary to make the statements  made, in light of the  circumstances
          under which such  statements were made, not misleading with respect to
          the period covered by this quarterly report;

     3)   Based on my knowledge,  the financial statements,  and other financial
          information  included in this quarterly report,  fairly present in all
          material respects the financial  condition,  results of operations and
          cash flows of the registrant as of, and for, the periods  presented in
          this quarterly report;

     4)   The registrant's  other  certifying  officer and I are responsible for
          establishing  and maintaining  disclosure  controls and procedures (as
          defined in Exchange  Act Rules  13a-14 and 15d-14) for the  registrant
          and we have:
          a.   designed such  disclosure  controls and procedures to ensure that
               material  information  relating to the registrant,  including its
               consolidated  subsidiaries,  is made known to us by others within
               those  entities,  particularly  during  the  period in which this
               quarterly report is being prepared;
          b.   evaluated  the  effectiveness  of  the  registrant's   disclosure
               controls and  procedures as of a date within 90 days prior to the
               filing date of this quarterly report (the "Evaluation Date"); and
          c.   presented  in this  quarterly  report our  conclusions  about the
               effectiveness of the disclosure  controls and procedures based on
               our evaluation as of the Evaluation Date;

     5)   The registrant's other certifying officer and I have disclosed,  based
          on our most recent  evaluation,  to the registrant's  auditors and the
          audit  committee  of  registrant's  board  of  directors  (or  persons
          performing the equivalent function):
          a.   all  significant  deficiencies  in the  design  or  operation  of
               internal  controls which could adversely  affect the registrant's
               ability to record,  process,  summarize and report financial data
               and have  identified for the  registrant's  auditors any material
               weaknesses in internal controls; and
          b.   any fraud,  whether or not material,  that involves management or
               other employees who have a significant  role in the  registrant's
               internal controls; and

     6)   The registrant's other certifying officer and I have indicated in this
          quarterly  report whether there were  significant  changes in internal
          controls or in other factors that could significantly  affect internal
          controls  subsequent  to the  date  of  our  most  recent  evaluation,
          including   any   corrective   actions  with  regard  to   significant
          deficiencies and material weaknesses.


BY:    /s/ Richard G. Hickson
       ----------------------
       Richard G. Hickson
       Chairman of the Board, President
       & Chief Executive Officer

DATE:  May 14, 2003






                                                                    Exhibit 99-c

                                CERTIFICATION BY
                             CHIEF FINANCIAL OFFICER
                     TRUSTMARK CORPORATION AND SUBSIDIARIES
                         PURSUANT TO 18 U.S.C. ss. 1350


I, Zach L. Wasson, Treasurer of Trustmark,  hereby certify that the accompanying
report on Form 10-Q  (Report) for the period  ending  March 31, 2003,  and filed
with the  Securities  and  Exchange  Commission  on the date hereof  pursuant to
Section  13(a)  of the  Securities  Exchange  Act of  1934 by  Trustmark,  fully
complies with the requirements of that section.

I further certify that the information  contained in the Report fairly presents,
in all material  aspects,  the financial  condition and results of operations of
Trustmark.



BY:    /s/ Zach L. Wasson
       ------------------
       Zach L. Wasson
       Treasurer (Principal
       Financial Officer)

DATE:  May 14, 2003












                                                                    Exhibit 99-d

                                CERTIFICATION BY
                             CHIEF FINANCIAL OFFICER
                     TRUSTMARK CORPORATION AND SUBSIDIARIES
                                   PURSUANT TO
                               SECTION 302 OF THE
                           SARBANES-OXLEY ACT OF 2002


I, Zach L. Wasson, certify that:

     1)   I have  reviewed  this  quarterly  report  on Form  10-Q of  Trustmark
          Corporation and Subsidiaries;

     2)   Based on my  knowledge,  this  quarterly  report  does not contain any
          untrue  statement of a material  fact or omit to state a material fact
          necessary to make the statements  made, in light of the  circumstances
          under which such  statements were made, not misleading with respect to
          the period covered by this quarterly report;

     3)   Based on my knowledge,  the financial statements,  and other financial
          information  included in this quarterly report,  fairly present in all
          material respects the financial  condition,  results of operations and
          cash flows of the registrant as of, and for, the periods  presented in
          this quarterly report;

     4)   The registrant's  other  certifying  officer and I are responsible for
          establishing  and maintaining  disclosure  controls and procedures (as
          defined in Exchange  Act Rules  13a-14 and 15d-14) for the  registrant
          and we have:
          a.   designed such  disclosure  controls and procedures to ensure that
               material  information  relating to the registrant,  including its
               consolidated  subsidiaries,  is made known to us by others within
               those  entities,  particularly  during  the  period in which this
               quarterly report is being prepared;
          b.   evaluated  the  effectiveness  of  the  registrant's   disclosure
               controls and  procedures as of a date within 90 days prior to the
               filing date of this quarterly report (the "Evaluation Date"); and
          c.   presented  in this  quarterly  report our  conclusions  about the
               effectiveness of the disclosure  controls and procedures based on
               our evaluation as of the Evaluation Date;

     5)   The registrant's other certifying officer and I have disclosed,  based
          on our most recent  evaluation,  to the registrant's  auditors and the
          audit  committee  of  registrant's  board  of  directors  (or  persons
          performing the equivalent function):
          a.   all  significant  deficiencies  in the  design  or  operation  of
               internal  controls which could adversely  affect the registrant's
               ability to record,  process,  summarize and report financial data
               and have  identified for the  registrant's  auditors any material
               weaknesses in internal controls; and
          b.   any fraud,  whether or not material,  that involves management or
               other employees who have a significant  role in the  registrant's
               internal controls; and

     6)   The registrant's other certifying officer and I have indicated in this
          quarterly  report whether there were  significant  changes in internal
          controls or in other factors that could significantly  affect internal
          controls  subsequent  to the  date  of  our  most  recent  evaluation,
          including   any   corrective   actions  with  regard  to   significant
          deficiencies and material weaknesses.


BY:    /s/ Zach L. Wasson
       ------------------
       Zach L. Wasson
       Treasurer (Principal
       Financial Officer)

DATE:  May 14, 2003