GlobeNewswire
NEW YORK, Jan. 31, 2022 (GLOBE NEWSWIRE) -- CleanTech Acquisition Corp. (NASDAQ: CLAQ) (“CLAQ”), a publicly traded special purpose acquisition company, today announced that it has filed with the U.S. Securities and Exchange Commission a registration statement on Form S-4. The filing includes a preliminary proxy statement/prospectus in connection with CLAQ’s proposed business combination with Nauticus Robotics, Inc. (“Nauticus” or the “Company”), a Houston-area developer of surface and subsea rob