Energy Transition Special Opportunities (Nasdaq: CLSO) is a blank-check company that registered its class of securities under Section 12(b) of the Securities Exchange Act in May 2026, filing Form 8-A12B with the SEC on May 14, 2026, under accession number 0001213900-26-056673. The vehicle completed its IPO in 2026 and is focused on the energy transition sector, with a stated mandate to identify and consummate a business combination with companies operating in clean energy, renewables, or adjacent industries. The sponsor has not been separately disclosed in the public filing record. CLSO is currently in its search phase as an active blank-check issuer. Sign up at SpacDesk for full deal data, sponsor profiles, and real-time SPAC tracking on CLSO and hundreds of other vehicles.