Group 1 - The core viewpoint of the article is that Wanrun Co., Ltd. has clarified the application of its thermoplastic polyimide (TPI) products, which are high-performance polymer materials used in manufacturing components for the automotive and engineering machinery sectors [2] - The company stated that its TPI products have not yet been utilized in the C919 aerospace aircraft [2]

Core Insights - Wanrun Co., Ltd. reported a stock price of 13.85 yuan as of August 26, 2025, with a slight increase of 0.22% from the previous trading day and a trading volume of 265 million yuan [1] Company Overview - Wanrun Co., Ltd. specializes in the research and production of electronic chemicals and new materials, focusing on lithium batteries and high-performance polymer materials [1] - The company has achieved a production capacity of hundreds of tons for its thermoplastic polyimide (TPI) products, which are currently being sold. No other domestic companies have been identified with mass production capabilities [1] - The company's PEI and PEEK materials are categorized as high-performance polymer materials, with PEEK already having pilot products that are undergoing validation with downstream customers. These materials have applications in electronic information, aerospace, and medical fields [1] Financial Flow - On August 26, 2025, the net outflow of main funds was 21.1857 million yuan, with a cumulative net outflow of 47.5201 million yuan over the past five days [1]

证券日报网讯 万润股份8月26日在互动平台回答投资者提问时表示，公司热塑性聚酰亚胺产品（TPI） 是一种高性能聚合物材料，可应用于制造汽车、工程机械等领域的零部件；据公司了解，除海外一家企 业外，国内除公司外未发现其他企业具备该产品量产能力；在产能方面，公司已具备约百吨级产能；目 前公司TPI产品已实现销售。 （编辑 袁冠琳） ...

Core Viewpoint - The company has developed a high-performance thermoplastic polyimide (TPI) material, which is primarily used in manufacturing components for the automotive and engineering machinery sectors. The company claims to be one of the few in China with mass production capabilities for this product, alongside one overseas competitor [1]. Group 1 - The TPI material is characterized as a high-performance polymer material [1]. - The primary applications of TPI include manufacturing components for the automotive and engineering machinery industries [1]. - The company has approximately a hundred tons of production capacity for TPI [1]. Group 2 - The company has successfully achieved sales of its TPI products [1]. - There are no other domestic companies identified with mass production capabilities for TPI, apart from the company itself and one overseas competitor [1].