As filed with the Securities and Exchange Commission on August 1, 2025. Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 _________________________ MILL CITY VENTURES III, LTD. (Exact name of registrant as specified in its charter) _________________________ (I.R.S. Employer Identification Number) 1907 Wayzata Boulevard, Suite 205 Wayzata, MN 55391 Telephone: (952) 479-1923 (Address, including zip cod ...