Group 1 - JunDa Co., Ltd. (002865) experienced a decline of over 8%, following a significant increase of nearly 15% influenced by news related to Elon Musk's team [1] - As of the report, the stock price dropped by 8.49%, trading at 41.2 HKD, with a transaction volume of 400 million HKD [1] - The Secretary-General of the China Photovoltaic Industry Association, Liu Yiyang, stated that space photovoltaic technology is still in the early stages of exploration and validation, making it premature to determine a clear technical direction [1] Group 2 - The heterojunction (HJT) perovskite technology, which has garnered significant attention in the capital markets, is primarily based on a "cost reduction logic" proposed by certain financial institutions [1] - The actual products related to this technology are still in the laboratory or validation phase, indicating that large-scale commercialization is still a distance away [1]