天宜新材：目前控股子公司北京天仁道和新材料与彩虹无人机、腾盾无人机等公司仍保持有密切的业务合作

Group 1 - The core business growth area for the company is high-end composite materials and structural components for low-altitude flying vehicles [2] - The company's subsidiary, Beijing Tianren Dao New Materials Co., Ltd., maintains close business cooperation with Rainbow Drone and Tengdun Drone [2] - In 2023, Tianren Dao developed a medium-temperature toughened carbon fiber prepreg, which has been validated for multiple batches and applied to the Shanghai Shide Technology E20 aircraft [2] Group 2 - As of 2024, there are no new cooperation projects between Tianren Dao and Shide Technology [2]