裕兴股份：定增募投项目中聚酯薄膜生产线产品包括PCB感光干膜基膜，产品性能要求较高，尚未向客户供货

Core Viewpoint - The company has not yet supplied its developed PCB photoresist carrier materials to customers, as it is still in the process of research and trial production [1]. Group 1 - An investor inquired about the supply status of the PCB photoresist carrier materials developed by the company [1]. - The company confirmed that the polyester film production line includes PCB photosensitive dry film base materials, which have high performance requirements [1]. - The company is advancing the research and trial production of this product based on the production line debugging situation [1].