As filed with the U.S. Securities and Exchange Commission on November 14, 2024 Registration No. 333-280312 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Amendment No. 3 to FORM F-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 YSX Tech. Co., Ltd (Exact name of registrant as specified in its charter) Ying Li, Esq. Lisa Forcht, Esq. Hunter Taubman Fischer & Li LLC 48 Wall Street, Suite 1100 New York, NY 10005 212-530-2206 Jason T. Simon, Esq. Yangyang Jia, Esq. Greenberg Tr ...

As filed with the Securities and Exchange Commission on February 26, 2024 Registration Statement No. 333-276771 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 AMENDMENT NO. 2 TO FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 (Exact name of registrant as specified in its charter) (State or other jurisdiction of incorporation or organization) (Primary Standard Industrial Classification Code Number) Delaware 2834 42-1743430 (I.R.S. Employer Identification Number) 2 Bu ...