聚赛龙：公司开发的相关材料可应用于手机外壳、中框等，公司业务不涉及AI手机其它相关部件的核心技术

Group 1 - The company has developed materials that can be used in mobile phone casings and frames, but does not involve core technologies related to AI mobile phone components [2] - The company focuses on the field of modified plastics, specializing in the research, production, and sales of modified plastics [2] - The main products of the company include various types of modified general plastics, modified engineering plastics, and modified special engineering plastics [2]