ClearSign Technologies Corporation has filed a prospectus for an At The Market $(ATM.UK)$ Offering Agreement with H.C. Wainwright & Co., LLC, enabling the company to offer and sell shares of its common stock worth up to $10.39 million. The shares will be issued under a shelf registration statement on Form S-3, recently filed with the Securities and Exchange Commission $(SEC.UK)$. The registration statement is pending effectiveness, and no shares can be sold until it becomes effective. Once effective, the proceeds from the sale are expected to support working capital, research and development, marketing and sales, and other general corporate purposes. The agreement includes customary representations, warranties, and covenants, and can be terminated by either party.