兰生股份：公司未直接持有蓝箭航天空间科技股份有限公司股份

Group 1 - The company does not directly hold shares in Blue Arrow Aerospace Technology Co., Ltd. [2] - The company has a stake in Shanghai Dongrui Huizhan Private Investment Fund Partnership (Limited Partnership), which holds approximately 0.2550% of Blue Arrow Aerospace's equity [2]