ClearSign Technologies Corporation Announces Fourth Quarter and Full Year 2024 Conference Call

Hosting Call at 5pm ET on Wednesday, April 2nd

TULSA, Okla., March 18, 2025 /PRNewswire/ -- ClearSign Technologies Corporation (Nasdaq: CLIR) ("ClearSign" or the "Company")an emerging leader in industrial combustion and sensing technologies that support decarbonization, improve operational and energy efficiency, enable the use of hydrogen as a fuel and enhance safety while dramatically reducing emissions, announces that onWednesday, April 2, 2025,the Company will host a conference call at5:00 PM ET. The Company will file its annual report on form 10-K with the SEC in the coming days and willissue a summary of its financial and operating results for the full year ending onDecember 31, 2024,in a press release on the day of the call.

Investors interested in participating on the live full year call can dial 1-800-836-8184 within the U.S. or 1-646-357-8785 from abroad. Investors can also access the call online through a listen-only webcast athttps://app.webinar.net/9D4WxMAxb0Vhttps://app.webinar.net/Wz0nBdWqPeV or on the investor relations section of the Company's website athttp://ir.clearsign.com/overview.

The Company will host a Q&A session during the call and investors wishing to submit a question ahead of time can do so by emailing questions to [emailprotected].

The webcast will be archived on the Company's investor relations website for at least 90 days and a telephonic playback of the conference call will be available by calling 1-888-660-6345 within the U.S. or 1-646-517-4150 from abroad. The conference ID is 35253. The telephonic playback will be available for 7 days after the conference call.

About ClearSign Technologies Corporation

ClearSign Technologies Corporation designs and develops products and technologies for the purpose of decarbonization and improving key performance characteristics of industrial and commercial systems, includingoperational performance, energy efficiency, emission reduction, safety, the use of hydrogen as a fuel and overall cost-effectiveness. Our patented technologies, embedded in established OEM products as ClearSign Core and ClearSign Eyeand other sensing configurations, enhance the performance of combustion systems and fuel safety systems in a broad range of markets, including the energy (upstream oil production and down-stream refining), commercial/industrial boiler, chemical, petrochemical, transport and power industries. For more information, please visitwww.clearsign.com.

SOURCE ClearSign Technologies Corporation