鼎龙科技：公司PBO单体的主要客户在国内

Group 1 - The core viewpoint of the article is that Dinglong Technology (603004) clarified its customer base and collaboration status regarding PBO materials, indicating that its main customers are domestic and that there is no partnership with Mitsui Chemicals in the fields of aerospace materials and solid-state battery materials [1] Group 2 - Dinglong Technology responded to investor inquiries on an interactive platform, emphasizing its focus on domestic clients for PBO materials [1] - The company specifically stated that it has not engaged in any collaboration with Mitsui Chemicals concerning aerospace and solid-state battery materials [1]