As filed with the Securities and Exchange Commission on October 6, 2025. Amendment No. 1 Registration No. 333-290245 to UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 AMATUHI HOLDINGS, INC. (Exact name of registrant as specified in its charter) (State or other jurisdiction of incorporation or organization) (Primary Standard Industrial Classification Code Number) Delaware 8399 39-3087053 (I.R.S. Employer Identification ...