Form DEFA14A ClearSign Technologies

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June 13, 2025 4:10 PM EDT

SCHEDULE 14A

(RULE 14a-101)

INFORMATION REQUIRED IN PROXY STATEMENT

SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

Filed by the Registrant ⌧

Filed by a Party other than the Registrant ◻

Check the appropriate box:



◻	Preliminary Proxy Statement

◻	Confidential, For Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

◻	Definitive Proxy Statement

⌧	Definitive Additional Materials

◻	Soliciting Material Pursuant to §240.14a-12

ClearSign Technologies Corporation

(Name of Registrant as Specified in Its Charter)

(Name of Person(s) Filing Proxy Statement, if Other Than the Registrant)

Payment of Filing Fee (Check the appropriate box):

⌧		No fee required.

◻	Fee paid previously with preliminary materials.

◻	Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11.

SEC Filings

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