<PAGE>
                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                   FORM 10-K/A
                                 AMENDMENT NO. 1

(Mark    One)

[X]      Annual Report Pursuant to Section 13 or 15(d) of the Securities
         Exchange Act of 1934 for the fiscal year ended April 30, 2002

                                       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:0-23248

                          SIGMATRON INTERNATIONAL, INC.
             (Exact name of registrant as specified in its charter)

          DELAWARE                                           36-3918470
(State or other jurisdiction of                           (I.R.S. Employer
 incorporation or organization)                          Identification No.)


             2201 LANDMEIER ROAD, ELK GROVE VILLAGE, ILLINOIS 60007
                    (Address of principal executive offices)

                                 (847) 956-8000
              (Registrant's telephone number, including area code)

             ------------------------------------------------------

           Securities registered pursuant to Section 12(b) of the Act:

                                           Names of each exchange
           Title of Each Class               on which registered
           -------------------               -------------------
                 None                                None

           Securities registered pursuant to Section 12(g) of the Act:

                          Common Stock, $0.01 Par Value

             ------------------------------------------------------

Indicate by check mark whether the Registrant (l) 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 if disclosure of delinquent filers pursuant to Item 405
of Regulation S-K is not contained herein, and will not be contained, to the
best of Registrant's knowledge, in definitive proxy or information statements
incorporated by reference in Part III of this Form 10-K or any amendment to this
Form 10-K. [ ]


                              PURPOSE OF AMENDMENT

The registrant hereby amends its annual report on Form 10-K for the fiscal year
ended April 30, 2002 as follows to include a signature section, part of which
was inadvertently deleted from the original filing.


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                                   SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange
Act of 1934, the Registrant has duly caused this report to be signed on its
behalf by the undersigned, thereunto duly authorized.

                          SIGMATRON INTERNATIONAL, INC.

                            By: /s/ Gary R. Fairhead
                                --------------------
                                Gary R. Fairhead, President
                                and Chief Executive Officer

                                Dated: July 25, 2002

         KNOW ALL PERSONS BY THESE PRESENTS, that the undersigned directors and
officers of SigmaTron International, Inc., a Delaware corporation, which is
filing an Annual Report on Form 10-K with the Securities and Exchange Commission
under the provisions of the Securities Exchange Act of 1934 as amended, hereby
constitute and appoint Gary R. Fairhead and Linda K. Blake, and each of them,
each of their true and lawful attorneys-in fact and agents; with full power of
substitution and resubstitution, for him and in his name, place and stead, in
any of all capacities, to sign any or all amendments to the report to be filed
with the Securities and Exchange Commission, granting unto said
attorneys-in-fact and agents, and each of them, full power and authority to do
and perform each and every act and thing requisite and necessary to be done in
and about the premises, as fully to all interests and purposes as each of them
might or could do in person, hereby ratifying and confirming all that said
attorneys-in-fact and agents or any of them, or their substitute or substitutes,
may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Exchange Act of 1934, this report
has been signed below by the following persons on behalf of the Registrant and
in the capacities, and on the dates indicated.


<TABLE>
<CAPTION>

      Signature                              Title                                   Date
      ---------                              -----                                   ----
<S>                                 <C>                                              <C>

/s/ Franklin D. Sove                Chairman of the Board of Directors               July 25, 2002
--------------------
Franklin D. Sove

/s/ Gary R. Fairhead                President and Chief Executive Officer            July 25, 2002
--------------------                (Principal Executive Officer)
Gary R. Fairhead

/s/ Linda K. Blake                  Chief Financial Officer, Secretary and           July 25, 2002
------------------                  Treasurer (Principal Financial Officer and
Linda K. Blake                      Principal Accounting Officer)

/s/ John P. Chen                    Director                                         July 25, 2002
----------------
John P. Chen

/s/ W.L. McClelland                 Director                                         July 25, 2002
-------------------
W.L. McClelland

/s/ Thomas W. Rieck                 Director                                         July 25, 2002
-------------------
Thomas W. Rieck

/s/ Steven Rothstein                Director                                         July 25, 2002
--------------------
Steven Rothstein

/s/ Dilip S. Vyas                   Director                                         July 25, 2002
-----------------
Dilip S. Vyas

/s/ Carl Zemenick                   Director                                         July 25, 2002
-----------------
Carl Zemenick
</TABLE>


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         Pursuant to the requirements of Section 13 or 15(d) of the Securities
Exchange Act of 1934, the registrant has duly caused this Amendment No. 1 to its
Annual Report on Form 10-K to be signed on its behalf by the undersigned,
thereunto duly authorized.

                                    SIGMATRON INTERNATIONAL, INC.


                                    By: /s/ Linda K. Blake
                                        ---------------------------------
                                        Linda K. Blake
                                        Chief Financial Officer, Secretary and
                                        Treasurer (Principal Financial Officer
                                        and Principal Accounting Officer)

Dated:  August 22, 2002