Announcement on the Completion of Transfer of Underlying Assets for Major Asset Purchase and Connected Transaction

Stock Code: 002058 Stock Abbreviation: *ST Weiertai Announcement No.: 2025-053 Shanghai Weiertai Industrial Automation Co., Ltd. Announcement on the Completion of Transfer of Underlying Assets for Major Asset Purchase and Connected Transaction The Company and all members of the Board of Directors guarantee the content of the information disclosure is true, accurate, and complete, without false records, misleading statements, or major omissions. Special Reminder: Shanghai Weiertai Industrial Automation Co., Ltd. (hereinafter referred to as the "Company") has paid cash to purchase 30,285,330 shares of Shanghai Zijiang New Materials Technology Co., Ltd. (hereinafter referred to as "Zijiang New Materials" or the "Target Company") from Zijiang Enterprise, Changjiang Chen Dao, Ningde New Energy, Huiyou Chuangjia, Jiao Cheng Shang Qi, Jun Min Rong He, and individuals He Aizhong, Wang Hong, Guo Feng, Qin Zheng Yu, Gao Jun, Shen Jun Yu, Ni Ye, Ying Zicheng, Wu Yonghui, Shao Bing Zhen, Liu Ning, Qiu Cui Jiao, Gong Ping, Chen Tao, He Zhizhong, Hu Guiwen, Gu Ying, Chen Wei, Zhang Wei, Gao Xian, and Xie Feng Feng (collectively referred to as "Sellers"). This represents 51.00% of the total share capital of Zijiang New Materials. Upon completion of this transaction, Weiertai will hold 51.00% of Zijiang New Materials, consolidating Zijiang New Materials into the Company's consolidated financial statements. As of the disclosure date of this announcement, the transfer procedures for the underlying assets involved in this transaction have been completed. The relevant situation is hereby announced as follows: I. Implementation of This Transaction (I) Delivery and Transfer of Underlying Assets On September 23, 2025, the National Equities Exchange and Quotations (NEEQ) issued a "Confirmation Letter on the Application for Transfer of Equity in Zijiang New Materials by Agreement" to confirm the application for the transfer of 51.00% equity in Zijiang New Materials by agreement between the Company and the counterparties. On September 30, 2025, the Beijing Branch of China Securities Depository and Clearing Corporation Limited issued a "Securities Transfer Registration Confirmation Letter," confirming that the 51.00% equity of Zijiang New Materials in this transaction was transferred and registered in the name of the Company on September 29, 2025. Accordingly, the underlying assets of this transaction have been effectively delivered. (II) Payment of Transaction Consideration According to the "Equity Transfer Agreement," the transaction consideration for this transaction will be paid in cash. The Company shall pay 51% of the transaction price within 30 days from the effective date of the "Equity Transfer Agreement," but no earlier than the delivery date of the underlying assets (whichever is later). The remaining 49% of the transaction price shall be paid within 90 days from the delivery date of the underly