HALLADOR ENERGY CO 10-Q

ITEM 4. CONTROLS AND PROCEDURES DISCLOSURE CONTROLS We maintain a system of disclosure controls and procedures that are designed for the purpose of ensuring that information required to be disclosed in our SEC reports is recorded, processed, summarized, and reported within the time periods specified in the SEC’s rules and forms and that such information is accumulated and communicated to our CEO and CFO and as appropriate to allow timely decisions regarding required disclosure. As of the end of the period covered by this report, we carried out an evaluation, under the supervision and with the participation of our CEO and CFO of the effectiveness of the design and operation of our disclosure controls and procedures. Based on that evaluation, our CEO and CFO concluded that our disclosure controls and procedures are effective. There have been no changes to our internal control over financial reporting during the quarter ended September 30, 2024, that materially affected or are reasonably likely to materially affect our internal control over financial reporting. ​ 32 Table of Contents ​ PART II - O T H E R INFORMATION ​ ITEM 4. MINE SAFETY DISCLOSURES See Exhibit 95.1 to this Form 10-Q for a listing of our mine safety violations. ITEM 6. EXHIBITS ​ ​ ​ Exhibit No. Document 10.1 ​ Fourth Amended and Restated Credit Agreement dated as of September 27, 2024 (incorporated by reference to Exhibit 10.1 of Current Report on Form 8-K filed by the Company on October 3, 2024) 10.2 ​ Second Amended to the Fourth Amended and Restated Credit Agreement dated as of October 23, 2024 31.1 ​ SOX 302 Certification - Chief Executive Officer 31.2 ​ SOX 302 Certification - Chief Financial Officer 32 ​ SOX 906 Certification 95.1 ​ Mine Safety Disclosures 101.INS ​ Inline XBRL Instance Document 101.SCH ​ Inline XBRL Schema Document 101.CAL ​ Inline XBRL Calculation Linkbase Document 101.LAB ​ Inline XBRL Labels Linkbase Document 101.PRE ​ Inline XBRL Presentation Linkbase Document 101.DEF ​ Inline XBRL Definition Linkbase Document 104 ​ Cover Page Interactive Data File (embedded with the Inline XBRL document) ​ ​ ​ ​ ​ ​ ​ 33 Table of Contents 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. ​ ​ ​ HALLADOR ENERGY COMPANY ​ ​ Date: November 12, 2024 /s/ MARJORIE HARGRAVE ​ Marjorie Hargrave, CFO (Principal Financial Officer and Principal Accounting Officer) ​ ​ 34