ClearSign Technologies Corporation Announces Boiler Burner Order from California Boiler

Company Implementing M Series Technology for Next Generation of Boiler Burners

TULSA, Okla., June 3, 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 the Company has received a purchase order for a 500HP boiler burner from Rogue Combustion, a subsidiary of California Boiler.

"We are pleased to provide another advanced low emissions solution to our partner California Boiler," said Jim Deller, Ph.D., Chief Executive Officer of ClearSign.  "This order enables the continuing integration of our M series technology into our boiler burner line. Ultimately, with these changes, we are providing the same or better emissions performance combined with improved efficiency throughout our fire tube product line. In addition, we expect to incorporate our M series technology into a larger water tube boiler burner product line in the near future."   

This order is for a 500HP Fire Tube burner to be installed in a rental boiler in the second half of this year. 

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, including operational 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 Eye™ and 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 visit www.clearsign.com.

Cautionary Note on Forward-Looking Statements

All statements in this press release that are not based on historical fact are "forward-looking statements." You can find many (but not all) of these statements by looking for words such as "approximates," "believes," "hopes," "expects," "anticipates," "estimates," "projects," "intends," "plans," "would," "should," "could," "may," "will" or other similar expressions. While management has based any forward-looking statements included in this press release on its current expectations on the Company's strategy, plans, intentions, performance, or future occurrences or results, the information on which such expectations were based may change. These forward-looking statements rely on a number of assumptions concerning future events and are subject to a number of risks, uncertainties and other factors, many of which are outside of the Company's control, which could cause actual results to materially differ from such statements. Such risks, uncertainties and other factors include, but are not limited to: the performance of the Company's burners, including its ability to lower NOx emissions and increase efficiency; the Company's ability to successfully engineer and model its burner technology for boiler burners to deliver viable emission reduction solutions, including the Company's ability to incorporate its M series technology into a larger water tube boiler burner product line in the near future or at all; the Company's ability to leverage the growing interest in retrofit burners into additional opportunities for such product lines; the performance of the Company's computer modeling technique and its ability to reduce greenhouse gas emissions and design new technologies; the Company's ability to successfully deliver, install, and meet the performance obligations of the Company's products, including  process burners, boiler burners and flare and incinerator products, in the markets the Company operates and sells its products in; the Company's ability to successfully manufacture and supply its burner products timely; the Company's ability to further expand into other geographic markets; the Company's ability to successfully perform engineering orders and performance optimization processes included therein; general business and economic conditions; the performance of management and the Company's employees; the Company's ability to obtain financing, when needed; the Company's ability to compete with competitors; whether the Company's technology will be accepted and adopted and other factors identified in the Company's Annual Report on Form 10-K filed with the U.S. Securities and Exchange Commission and available at www.sec.gov and other factors that are detailed in the Company's periodic and current reports available for review at www.sec.gov. Furthermore, the Company operates in a competitive environment where new and unanticipated risks may arise. Accordingly, investors should not place any reliance on forward-looking statements as a prediction of actual results. The Company disclaims any intention to, and, except as may be required by law, undertakes no obligation to, update or revise forward-looking statements to reflect events or circumstances that subsequently occur or of which the Company hereafter become aware.

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SOURCE ClearSign Technologies Corporation