Core Viewpoint - Fangbang Co., Ltd. is developing resin materials for ultra-thin copper foil, currently in the customer testing phase [2] Group 1: Product Development - The company has developed resin materials that are coated on ultra-thin copper foil to create RCC or FRCC materials for ultra-fine circuit production [2] - The company utilizes its proprietary formula technology to produce PI/TPI materials, primarily for FCCL products, which are not yet exported [2]