Jack Corporation: the securities abbreviation will be changed to Jack Technology on September 10, 2025.

Jack Corporation Announcement: The company will change its stock abbreviation to "Jack Technology" on September 10, 2025, while the stock code "603337" will remain unchanged. This change is aimed at better reflecting the company's development strategy and business layout. The company has transformed from a single sewing equipment manufacturer to an intelligent manufacturing software system and service provider, launching high-end intelligent products such as the AI sewing machine planned to be released in the second half of 2025.