天际股份(002759.SZ)：控股股东在股票异动期间(9月8日、9月9日)减持170.11万股

Group 1 - The core point of the article is that Tianji Co., Ltd. (002759.SZ) announced a significant stock price fluctuation, with a cumulative increase of over 20% in closing prices over two trading days (September 8 and September 9, 2025) [1] - The company is advancing the industrialization of its lithium sulfide material preparation patent (Patent No.: ZL202411448897.4), which involves a team of 7 researchers, including 3 core R&D personnel, with approximately 5 million yuan invested in R&D expenses [1] - The project has completed small-scale testing and will proceed to larger-scale trials to analyze cost and industrial feasibility before entering the pilot test phase to validate production stability and equipment compatibility [1] Group 2 - The company’s technology development is still in the early stages, and the transition from patent to stable, mass-produced commercial products requires extensive process optimization and validation [1] - There is a risk that superior and lower-cost solid electrolyte technologies may undermine the competitive advantage of lithium sulfide technology in the future [1] - During the stock price fluctuation period, the controlling shareholder, Shantou Tianji Co., Ltd., reduced its holdings by 1.7011 million shares [2]