Bitcoin Infrastructure Acquisition Corp Ltd is a blank-check company targeting the digital asset and bitcoin infrastructure sector, currently in registration with the U.S. Securities and Exchange Commission. The company filed an S-1/A amendment to its initial registration statement on October 1, 2025, under the unit ticker BIXIU, placing it within the 2025 SPAC pipeline. The S-1/A filing indicates the registration process remains active and under SEC review prior to any public listing. Sponsor details were not identified in the available filing metadata. Investors and analysts tracking bitcoin-focused acquisition vehicles can sign up at SpacDesk for full filing history, sponsor profiles, and deal analytics on BIXIU and the broader SPAC market.