NORTHERN TECHNOLOGIES INTERNATIONAL CORP 10-Q

ITEM 5. OTHER INFORMATION Credit Agreement On January 30, 2026, Northern Technologies International Corporation and JPMorgan Chase Bank, N.A. entered into an amendment to the Credit Agreement to increase the availability under the Credit Facility from $10.0 million to $12.0 million. The other material terms of the Credit Facility and the Credit Agreement were not affected by this amendment. The foregoing represents only a summary of the material terms of the amendment to the Credit Agreement, does not purport to be complete and is qualified in its entirety by reference to the complete text of the amendment to the Credit Agreement, which is filed as Exhibit 10.1 to this quarterly report on Form 10-Q, and is incorporated by reference herein. Rule 10b5-1 Plan and Non-Rule 10b5-1 Trading Arrangement Adoptions, Terminations, and Modifications During the three months ended February 28, 2026, none of our directors or “officers” (as defined in Rule 16a-1(f) under the Exchange Act) adopted or terminated a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as each term is defined in Item 408 of SEC Regulation S-K. 38 ITEM 6. EXHIBITS The following exhibits are being filed or furnished with this quarterly report on Form 10-Q: Exhibit No. Description 10.1 Fourth Amendment to Credit Agreement, dated as of January 30, 2026, between JPMorgan Chase Bank, N.A. and Northern Technologies International Corporation (filed herewith) 10.2 Line of Credit Note, dated January 30, 2026, between Northern Technologies International Corporation and JPMorgan Chase Bank, N.A. (filed herewith) 10.3 Note Modification Agreement dated as of December 17, 2025 between Northern Technologies International Corporation and JPMorgan Chase Bank, N.A. (incorporated by reference to Exhibit 10.1 to NTIC’ s Current Report on Form 8-K as filed with the Securities and Exchange Commission on December 19, 2025 (File No. 001-11038) 31.1 Certification of President and Chief Executive Officer pursuant to SEC Rule 13a-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (filed herewith) 31.2 Certification of Chief Financial Officer pursuant to SEC Rule 13a-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (filed herewith) 32.1 Certification of President and Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (furnished herewith) 32.2 Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (furnished herewith) 101 The following materials from NTIC’s Quarterly Report on Form 10-Q for the fiscal quarter ended February 28, 2026, formatted in Inline XBRL (Extensible Business Reporting Language): (i) the unaudited Consolidated Balance Sheets, (ii) the unaudited Consolidated Statements of Operations, (iii) the unaudited Consolidated Statements of Comprehensive Income (Loss), (iv) the unaudited Consolidated Statements of Equity, (v) the unaudited Consolidated Statements of Cash Flows, and (vi) Notes to Consolidated Financial Statements (filed herewith) 104 Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101) 39 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. NORTHERN TECHNOLOGIES INTERNATIONAL CORPORATION /s/ Matthew C. Wolsfeld Date: April 9, 2026 Matthew C. Wolsfeld, CPA Chief Financial Officer (Principal Financial and Accounting Officer and Duly Authorized to Sign on Behalf of the Registrant) i