As filed with the Securities and Exchange Commission on December 16, 2025 Registration No. 333-292009 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 PRE-EFFECTIVE AMENDMENT No. 1 to FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 FOCUS UNIVERSAL INC. (Exact name of registrant as specified in its charter) | Nevada | 3823 | 46-3355876 | | --- | --- | --- | | (State or other jurisdiction of | (Primary Standard Industrial | (I.R.S. Employer | | incorporation or organiza ...