UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15 (d) of the

Securities Exchange Act of 1934

Date of Report (Date of earliest event reported)

~~June 6~~March 31, ~~2025~~2026

KOIL ENERGY SOLUTIONS, INC.

(Exact name of registrant as specified in its charter)

Nevada

000-30351

75-2263732

(State or other jurisdiction

of incorporation)

(Commission File Number)

(I.R.S. Employer

Identification No.)

1310 Rankin Road, Houston, TX 77073

(Address of principal executive offices) (Zip Code)

(281) 517-5000

Registrant’s telephone number, including area code

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐

Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act: None

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 or Rule 12b-2 of the Securities Exchange Act of 1934.

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

~~Item~~SECTION ~~4.01.~~2 ~~Changes~~– inFINANCIAL ~~Registrant’s~~INFORMATION ~~Certifying Accountant.~~

OnITEM ~~June 3, 2025, Koil Energy Solutions Inc~~2.,02 ~~(the "Company")~~Results was notified that Moss Adams LLP ("Moss Adams"), the Company's independent registered public accounting firm, merged with Baker Tilly US, LLP effective on June 3, 2025. The combined audit practices operate as Baker Tilly US, LLP (“Baker Tilly”). In connection with the notification of ~~the~~Operations ~~merger, Moss Adams has resigned as the auditors of the Company~~ and ~~the~~Financial ~~Audit Committee of the Company’s Board of Directors approved the appointment of Baker Tilly, as the successor to Moss Adams, as the Company’s independent registered public accounting firm~~Condition.

~~The~~On ~~audit~~March ~~reports~~31, of2026, ~~Moss~~Koil ~~Adams~~Energy onSolutions, ~~the Company’s~~Inc. ~~consolidated~~issued a press release announcing its financial ~~statements~~results for the ~~years~~year ended December 31, ~~2024~~2025. ~~and~~A ~~2023,~~copy ~~and for each~~ of the ~~years~~press ~~then~~release ~~ended,~~is ~~did not contain~~furnished anas ~~adverse~~Exhibit ~~opinion~~99.1 orto athis ~~disclaimer~~report ofand ~~opinion,~~is ~~nor~~incorporated ~~were~~herein ~~they~~by ~~qualified or modified as to uncertainty, audit scope or accounting principles~~reference.

~~During~~SECTION ~~the~~9 ~~years~~– ~~ended~~FINANCIAL ~~December~~STATEMENTS ~~31,~~AND 2024 and 2023, and the subsequent interim period through June 3, 2025, there were no (a) disagreements with Moss Adams on any matter of accounting principles or practices, financial statement disclosure, or auditing scope or procedure, which, if not resolved to Moss Adams’ satisfaction, would have caused it to make reference to the subject matter of the disagreement in connection with its reports on the Company’s financial statements, or (b) reportable events requiring disclosure pursuant to Item 304(a)(1)(v) of Regulation S-K.EXHIBITS

~~During~~ITEM ~~the~~9.01 ~~years~~Financial ~~ended~~Statements ~~December 31, 2024~~ and 2023, and the subsequent interim period through the date of this Current Report on Form 8-K, neither the Company, nor anyone on its behalf, consulted with Baker Tilly regarding: (i) either the application of accounting principles to a specified transaction, either completed or proposed, or the type of audit opinion that might be rendered on the Company’s financial statements; or (ii) any matter that was either the subject of a “disagreement,” as defined in Item 304(a)(1)(iv) of Regulation S-K and the related instructions to that item, or a “reportable event,” as described in Item 304(a)(1)(v) of Regulation S-KExhibits.

~~The Company provided Moss Adams with a copy of this Current Report on Form 8-K prior to its filing with the Securities and Exchange Commission~~ (~~the “Commission”~~d) and requested that Moss Adams furnish the Company with a letter addressed to the Commission stating whether it agrees with the above statements and, if it does not agree, the respects in which it does not agree. A copy of Moss Adams’ letter to the Commission, dated June 6, 2025, is filed as Exhibit 16.1 to this Form 8-K and is incorporated herein by reference.Exhibits:

Item 9.01. Financial Statements and Exhibits.

99.1	Press Release issued by Koil Energy Solutions, Inc. dated March 31, 2026
104	Cover Page Interactive Data File (embedded within the Inline XBRL document)

~~(d) Exhibits~~ 2

	16.1	Letter of Moss Adams LLP to the Securities and Exchange Commission dated June 6, 2025.
	104	Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURE

2Pursuant 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.

SIGNATURE

	KOIL ENERGY SOLUTIONS, INC.

	By:	/s/ Erik Wiik
		Erik Wiik
		President and Chief Executive Officer


Date: April 1, 2026

~~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.~~3

	KOIL ENERGY SOLUTIONS, INC.
	By:	/s/ Erik Wiik
		Erik Wiik
		President and Chief Executive Officer
Date: June 6, 2025

Filing Compare · Koil Energy Solutions, Inc.