China Securities Network News (Reporter Wang Yuqing) Jingke Energy introduced at the semi annual performance briefing that the company is currently relatively easy to achieve an efficiency of about 33% for perovskite silicon stacked cells in the laboratory, and the key issue lies in the stability of the perovskite itself. At present, although there has been significant improvement, there is still a gap compared to the stability of crystalline silicon batteries. The company believes that the stability issue of perovskite is expected to be resolved in the next 3-5 years, and mass production is expected to be achieved thereafter.