NORTECH SYSTEMS INC 10-Q

ITEM 5. OTHER INFORMATION None. ITEM 6. EXHIBITS Exhibits 10.1 Second Amendment to Lease dated 15th day of May 2024 by and between Sri Management and Consulting LLC, a Minnesota limited liability company, as management agent for the property owners and Nortech Systems, Inc., a Minnesota corporation. 31.1* Certification of the Chief Executive Officer pursuant to Rule 13a-14(a) and Rule 15d-14(a), promulgated under the Securities Exchange Act of 1934, as amended. 31.2* Certification of the Chief Financial Officer pursuant to Rule 13a-14(a) and Rule 15d-14(a), promulgated under the Securities Exchange Act of 1934, as amended. 32* Certification of the Chief Executive Officer and Chief Financial Officer, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. 101* Financial statements from the quarterly report on Form 10-Q for the quarter ended March 31, 2026, formatted in XBRL: (i) Condensed Consolidated Balance Sheets, (ii) Condensed Consolidated Statements of Operations and Comprehensive Income (Loss), (iii) Condensed Consolidated Statements of Cash Flows, and (iv) the Notes to Condensed Consolidated Financial Statements. 104 Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101). *Filed herewith 23 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, thereunto duly authorized. Nortech Systems Incorporated and Subsidiaries Date: May 13, 2026 by /s/ Jay D. Miller Jay D. Miller Chief Executive Officer and President Nortech Systems Incorporated Date: May 13, 2026 by /s/ Andrew D. C. LaFrence Andrew D. C. LaFrence Chief Financial Officer and Senior Vice President of Finance Nortech Systems Incorporated 24