EX-23.1 4 c70791exv23w1.txt CONSENT OF GRANT THORNTON LLP EXHIBIT 23.1 CONSENT OF INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS Board of Directors SigmaTron International, Inc. We have issued our report dated June 27, 2002 accompanying the consolidated balance sheet of SigmaTron International, Inc. at April 30, 2002, and the related statements of operations, stockholders' equity, and cash flows for the year then ended, and Schedule II included in the Annual Report of SigmaTron International, Inc., and Subsidiary on Form 10-K for the year ended April 30, 2002. We also included within the Annual Report of SigmaTron International, Inc., and Subsidiary on Form 10-K, our report dated June 27, 2002 accompanying the balance sheet at April 30, 2002, and the related statements of income, partners' equity and cash flows for the year then ended of SMT Unlimited L.P. We hereby consent to the incorporation by reference of said reports in the Registration Statements of SigmaTron International, Inc., and Subsidiary on Forms S-8 (File No. 33 20147 and 333-52044). GRANT THORNTON LLP Chicago, Illinois June 27, 2002