万润股份：高性能聚合物产品聚醚酰亚胺（PEI）材料已实现销售，年产能1500吨的量产线已投入试生产

Core Viewpoint - The company has developed high-performance polymer products, specifically polyetherimide (PEI) materials, which are applicable in commercial aerospace and other industries, and has initiated production with a capacity of 1,500 tons per year [2]. Group 1 - The company's PEI materials are primarily used in applications such as fiber optic connectors and aerospace composite materials [2]. - The production line for PEI materials has commenced trial production, indicating progress towards full-scale manufacturing [2]. - The company anticipates that as the production line matures and downstream demand increases, it will gradually reach full production capacity [2].