天际股份：控股股东汕头天际在9月26日、9月29日通过大宗交易减持公司股票450万股

Core Viewpoint - Tianji Co., Ltd. (002759.SZ) has experienced significant stock price fluctuations, with a cumulative increase of over 20% during the trading days of September 26 and September 29, 2025, indicating abnormal trading activity [1] Group 1: Company Developments - The company is advancing the industrialization of its lithium sulfide material preparation patent (Patent No. ZL202411448897.4), supported by a team of 7 researchers, including 3 core R&D personnel, with approximately 5 million yuan invested in R&D so far [1] - The project has successfully passed small-scale testing and will proceed to larger-scale trials to analyze cost and industrial feasibility before entering the pilot test phase to further validate production stability and equipment compatibility [1] Group 2: Risks and Challenges - The technology development is still in its early stages, and transitioning from patent to stable, mass-produced commercial products will require extensive process optimization and validation [1] - There is a potential risk that superior and lower-cost solid electrolyte technologies may undermine the competitive advantage of lithium sulfide technology in the future [1] - The industrialization process may face challenges such as consistency and stability issues during the pilot testing phase, which could lead to underperformance in commercialization [1] Group 3: Shareholder Activity - During the abnormal trading period, the controlling shareholder, Shantou Tianji, reduced its stake by selling 4.5 million shares through block trading, with the reduction plan still ongoing as of the announcement date [2] - The actual controller did not engage in buying or selling company shares during the abnormal trading period [2]