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): August 29, 2023

CLEARSIGN TECHNOLOGIES CORPORATION

(Exact name of registrant as specified in Charter)

8023 E. 63rd Place, Suite 101

Tulsa, Oklahoma 74133

(Address of Principal Executive Offices)

(918) 236-6461

(Issuer Telephone number)

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 (see General Instruction A.2 below).

Securities registered pursuant to Section 12(b) of the Act:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

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 8.01. Other Events.

On August 29, 2023, ClearSign Technologies Corporation (the “Company”) issued a press release announcing that it was awarded a Phase 2 government grant through the Small Business Innovative Research program with the Department of Energy (the “Phase 2 Grant”). The Phase 2 Grant was for the maximum amount of up to $1.65 million for a two-year duration, which the Company intends to apply to the development of ultra-low NOx hydrogen burner technologies. The Phase 2 Grant follows the successful development and demonstration of a ClearSign Core™ Ultra Low NOx burner fueled with 100% hydrogen, which was funded by the Phase 1 grant amount of $250,000. A copy of the press release is attached as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated by reference herein.

Cautionary Note Regarding Forward-Looking Statements

The information contained in this Current Report on Form 8-K and the exhibits attached hereto contain “forward-looking” statements within the meaning of the Private Securities Litigation Reform Act of 1995. The words “intend,” “may,” “should,” “would,” “expect,” “plan,” “anticipate,” “believe,” “estimate,” “predict,” “potential” or “continue” or the negative of these terms or other comparable terminology are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. Forward-looking statements are statements that are not historical facts. Such forward-looking statements are not guarantees of future performance and are subject to risks and uncertainties, which could cause actual results to differ materially from the forward-looking statements contained herein due to many factors. With respect to the matters addressed in this Current Report on Form 8-K, those factors include, but are not limited to the likelihood that the Company will be able to successfully complete the ultra-low NOx hydrogen burner development project funded by the Phase 2 Grant, general business and economic conditions, the performance of management and the Company’s employees, the Company’s ability to obtain financing, competition and whether our technology will be accepted and adopted. While the Company believes its plans, intentions and expectations reflected in those forward-looking statements are reasonable, these plans, intentions or expectations may not be achieved. The Company’s actual results, performance or achievements could differ materially from those contemplated, expressed or implied by the forward-looking statements. For information about the factors that could cause such differences, please refer to the Company’s filings with the U.S. Securities and Exchange Commission. Given these uncertainties, you should not place undue reliance on these forward-looking statements. The Company assumes no obligation to update any forward-looking statement.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this Current Report to be signed on its behalf by the undersigned hereunto duly authorized.

Dated: August 29, 2023