SigmaTron International (SGMA) 10-K 2016 FY Annual report

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EXHIBIT 23.1

Consent of Independent Registered Public Accounting Firm

SigmaTron International, Inc.

Elk Grove Village, Illinois

We hereby consent to the incorporation by reference in the Registration Statements on Form S­8  (No. 33-80147, 333-166210, 333-178478 and 333-207579)  of SigmaTron International, Inc. of our report dated July 29, 2016, relating to the consolidatedfinancial statements, which appear in this Form 10-K.

/s/ BDO USA, LLP

BDO USA, LLP

Chicago,  Illinois

July 29, 2016

BDO USA, LLP, a Delaware limited liability partnership, is the U.S. member of BDO International Limited, a UK company limited by guarantee, and forms part of the international BDO network of independent member firms.

BDO is the brand name for the BDO network and for each of the BDO Member Firms.