同宇新材：公司产品主要应用于覆铜板生产

Group 1 - The company, Tongyu New Materials, focuses on the research, production, and sales of electronic resins, primarily used in the production of copper-clad laminates [2] - The company has established long-term stable partnerships with well-known global manufacturers in the copper-clad laminate industry, including Jiantao Group, Shengyi Technology, Nanya New Materials, Huazheng New Materials, Jinbao Electronics, and Ultrasonic Electronics [2]