As submitted to the U.S. Securities and Exchange Commission on November 6, 2025. Registration No. 333-289903 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Amendment No. 2 FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 BITCOIN INFRASTRUCTURE ACQUISITION CORP LTD. (Exact name of registrant as specified in its charter) (State or other jurisdiction of incorporation or organization) Cayman Islands 6770 N/A (Primary Standard Industrial Classification Code Number) (I.R.S ...