Aggregated Materials: Submitted an application to the Hong Kong Stock Exchange for the overseas public offering of shares and listing on the main board of the Hong Kong Stock Exchange.

Polymer Materials Announcement: The company submitted an application for the overseas public issuance of shares and listing on the main board of the Hong Kong Stock Exchange to the Hong Kong Stock Exchange on January 14, 2026. The application materials were also published on the Hong Kong Stock Exchange website on the same day. The application materials were prepared and published by the company in accordance with the requirements of the Securities and Futures Commission of Hong Kong and the Hong Kong Stock Exchange. They are draft versions, and the information contained therein may be updated and revised in a timely manner. Investors should not make any investment decisions based on the information provided in the materials.