ClearSign Receives "M1" Series Burner Order for Midstream Heater in West Texas

Burner Sold by Heater Manufacturer Tulsa Heaters Midstream TULSA, OK / ACCESS Newswire / May 20, 2026 / ClearSign Technologies Corporation (Nasdaq:CLIR) ("ClearSign" or the "Company"), a leader in advanced combustion and sensing technologies that help industrial operators dramatically reduce emissions, increase efficiency and support the use of cleaner fuels including hydrogen, today announces that it has received a purchase order for a ClearSign M1 burner, one of its "M" Series process burners, from heater manufacturer Tulsa Heaters Midstream ("THM"). "We are happy to see continued interest in this midstream product line," said Jim Deller, Ph.D.