{"url_path":"/sec/dyai/10-q/2026/item-6","section_key":"item-6","section_title":"Item 6 Exhibits**","topic":"sec","document":{"doc_type":"10-Q","doc_date":"2026-05-13","source_url":"https://www.sec.gov/Archives/edgar/data/1213809/0001493152-26-022722-index.html","accession_number":"0001493152-26-022722","cik":"0001213809","ticker":"DYAI","issuer_name":"DYADIC INTERNATIONAL INC","edgar_url":"https://www.sec.gov/Archives/edgar/data/1213809/0001493152-26-022722-index.html","primary_entity_key":"0001213809","primary_entity_name":"DYADIC INTERNATIONAL INC"},"word_count":316,"has_tables":true,"body_markdown":"** **\n\n**Item\n6. Exhibits**\n\n** **\n\nThe\nfollowing Exhibits are filed as part of this report pursuant to Item 601 of Regulation S-K:\n\n \n\n \n \n \n \n \n \nIncorporated\nby Reference\n \n \n\nExhibit\n\nNo.\n\n \nDescription\nof Exhibit\n \nForm\n \nOriginal\nNo.\n \nDate\nFiled\n \nFiled\nHerewith\n\n3.1\n \n[Restated Certificate of Incorporation dated November 1, 2004](https://www.sec.gov/Archives/edgar/data/1213809/000162828019000323/exhibit31form10.htm)\n \n10-12G\n \n3.1\n \nJanuary\n14, 2019\n \n \n\n3.3\n \n[Fourth Amended and Restated Bylaws of Dyadic International, Inc., effective May 29, 2025](https://www.sec.gov/Archives/edgar/data/1213809/000143774925019177/ex_825844.htm)\n \n8-K\n \n3.1\n \nJune\n2, 2025\n \n \n\n31.1\n \n[Certification of Principal Executive Officer of Dyadic Pursuant to Exchange Act Rules 13a-14(a) and 15d-14(a), as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002](ex31-1.htm)\n \n \n \n \n \n \n \nX\n\n31.2\n \n[Certification of Principal Financial Officer of Dyadic Pursuant to Exchange Act Rules13a-14(a) and 15d-14(a), as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002](ex31-2.htm)\n \n \n \n \n \n \n \nX\n\n32.1\n \n[Certification\nof Principal Executive Officer of Dyadic Pursuant to 18 U.S.C Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley\nAct of 2002 (1)](ex32-1.htm)\n \n \n \n \n \n \n \n \n\n32.2\n \n[Certification\nof Principal Financial Officer of Dyadic Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley\nAct of 2002 (1)](ex32-2.htm)\n \n \n \n \n \n \n \n \n\n101.INS\n \nInline\nXBRL Instance Document\n \n \n \n \n \n \n \n \n\n101.SCH\n \nInline\nXBRL Taxonomy Extension Schema Document\n \n \n \n \n \n \n \n \n\n101.CAL\n \nInline\nXBRL Taxonomy Extension Calculation Linkbase Document\n \n \n \n \n \n \n \n \n\n101.DEF\n \nInline\nXBRL Taxonomy Extension Calculation Linkbase Document\n \n \n \n \n \n \n \n \n\n101.LAB\n \nInline\nXBRL Taxonomy Extension Labels Linkbase Document\n \n \n \n \n \n \n \n \n\n101.PRE\n \nInline\nXBRL Taxonomy Extension Presentation Linkbase Document\n \n \n \n \n \n \n \n \n\n104\n \nCover\nPage Interactive Data File (embedded within the Inline XBRL and contained in Exhibit 101)\n \n \n \n \n \n \n \n \n\n \n\n(1)\nFurnished herewith.\n\n \n\n34\n\n \n\n** **\n\n**SIGNATURES**\n\n** **\n\nPursuant\nto the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by\nthe undersigned thereunto duly authorized.\n\n \n\nMay\n13, 2026\nDYADIC\nINTERNATIONAL, INC.\n\n \n \n \n\n \nBy: \n*/s/\nMark A. Emalfarb                 *\n\n \n \nMark\nA. Emalfarb\n\n \n \nChief\nExecutive Officer\n\n \n \n(Principal\nExecutive Officer)\n\n \n\nMay\n13, 2026\nBy: \n*/s/\nPing W. Rawson*\n\n \n \nPing\nW. Rawson\n\n \n \nChief\nFinancial Officer\n\n \n \n(Principal\nFinancial Officer and Principal Accounting Officer)\n\n \n\n35\n\n** **"}