Xinhua News Agency, May 25, [TOPCon battery concept stock continues to rise 20CM limit] Dike shares rose by the daily limit of 20CM, while Robotec, Jijiawei Chuang, Junda shares, Oriental Sunrise, and Lunda shares rose more than 5 percent. Citic Construction Research report said that the current mass production efficiency of TOPCon battery has reached more than 25%, and the ratio of mass production performance to price is the highest among N-type batteries. Head enterprises have chosen TOPCon as the next-generation battery technology route.