Core Viewpoint - Feirongda (300602.SZ) is currently not involved in the diamond copper substrate business but is actively monitoring developments in related technology fields and is committed to new product development and technology reserves to enhance its overall competitive advantage [1] Group 1 - The company has stated that it has not yet engaged in the diamond copper substrate business [1] - The company is focused on actively observing advancements in relevant technology sectors [1] - The company aims to continuously improve its comprehensive competitive advantages through new product development and technology reserves [1]