太阳能：公司暂未开展商业航天相关业务

Group 1 - The company has achieved a small-area perovskite-silicon tandem cell efficiency exceeding 30%, which has been certified by a third party [2] - The current size of the small-area cell is approximately 0.5 cm [2] - The company has not yet engaged in commercial aerospace-related business but will monitor relevant developments [2]