{"url_path":"/sec/stld/10-q/2026/item-6","section_key":"item-6","section_title":"Item 6 EXHIBITS","topic":"sec","document":{"doc_type":"10-Q","doc_date":"2026-04-27","source_url":"https://www.sec.gov/Archives/edgar/data/1022671/0001104659-26-049415-index.html","accession_number":"0001104659-26-049415","cik":"0001022671","ticker":"STLD","issuer_name":"STEEL DYNAMICS INC","edgar_url":"https://www.sec.gov/Archives/edgar/data/1022671/0001104659-26-049415-index.html","primary_entity_key":"0001022671","primary_entity_name":"STEEL DYNAMICS INC"},"word_count":412,"has_tables":true,"body_markdown":"ITEM 6.    EXHIBITS\n\nReference is made to the Exhibit Index preceding the signature page hereto, which Exhibit Index is hereby incorporated into this item.\n\n**EXHIBIT INDEX**\n\n​\n\n​\n\n**Articles of Incorporation**\n\n​\n\n​\n\n3.1\n\n[Amended and Restated Articles of Incorporation of Steel Dynamics, Inc., reflecting all amendments thereto through May 11, 2023, incorporated herein by reference from Exhibit 3.1 to our Form 10-Q filed August 8, 2023 (File No.: 000-21719).](https://www.sec.gov/Archives/edgar/data/1022671/000155837023013968/stld-20230630xex3d1.htm)\n\n​\n\n​\n\n3.2\n\n[Amended and Restated Bylaws of Steel Dynamics, Inc., reflecting all amendments thereto through January 31, 2024, incorporated herein by reference from Exhibit 3.2 to our Form 10-K filed February 29, 2024 (File No.: 000-21719).](https://www.sec.gov/Archives/edgar/data/1022671/000155837024002152/stld-20231231xex3d2.htm)\n\n​\n\n**Executive Officer Certifications**\n\n​\n\n31.1*\n\n[Certification of Chief Executive Officer required by Item 307 of Regulation S-K as promulgated by the Securities and Exchange Commission and pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.](stld-20260331xex31d1.htm)\n\n​\n\n​\n\n31.2*\n\n[Certification of Chief Financial Officer required by Item 307 of Regulation S-K as promulgated by the Securities and Exchange Commission and pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.](stld-20260331xex31d2.htm)\n\n​\n\n​\n\n32.1*\n\n[Certification of Chief Executive Officer Pursuant to 18 U.S.C Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.](stld-20260331xex32d1.htm)\n\n​\n\n​\n\n32.2*\n\n[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.](stld-20260331xex32d2.htm)\n\n​\n\n**XBRL Documents**\n\n​\n\n​\n\n101.INS*\n\nXBRL Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.\n\n​\n\n​\n\n101.SCH*\n\nInline XBRL Taxonomy Extension Schema Document\n\n​\n\n​\n\n101.CAL*\n\nInline XBRL Taxonomy Extension Calculation Document\n\n​\n\n​\n\n101.DEF*\n\nInline XBRL Taxonomy Definition Document\n\n​\n\n​\n\n101.LAB*\n\nInline XBRL Taxonomy Extension Label Document\n\n​\n\n​\n\n101.PRE*\n\nInline XBRL Taxonomy Presentation Document\n\n​\n\n​\n\n104*\n\nCover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)\n\n​\n\n*\n\nFiled concurrently herewith\n\n24\n\n[Table of Contents](#TOC)\n\nSIGNATURE\n\nPursuant 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.\n\nApril 27, 2026\n\n​\n\n​\n\n​\n\n  ​ ​ ​\n\n​\n\n​\n\n​\n\nSTEEL DYNAMICS, INC.\n\n​\n\n​\n\n​\n\n​\n\nBy:\n\n/s/ Theresa E. Wagler\n\n​\n\n​\n\nTheresa E. Wagler\n\n​\n\n​\n\nExecutive Vice President and Chief Financial Officer\n\n​\n\n​\n\n(*Principal Financial Officer and Principal Accounting Officer*)\n\n​\n\n​\n\n​\n\n25"}