J-Star Holding(YMAT) - Prospectus(update)

As filed with the U.S. Securities and Exchange Commission on July 25, 2025. Registration No. 333-286805 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Amendment No. 2 to FORM F-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 J-Star Holding Co., Ltd. (Exact name of Registrant as specified in its charter) Not Applicable (Translation of Registrant's name into English) (State or other jurisdiction of incorporation or organization) (I.R.S. Employer Identification Number) 7/F-1, ...