Shi Jia Guangzi: Core technical personnel adjustment, addition of Chen Jun to strengthen the research and development team.

Shijia Guangzi announced that based on its long-term strategic development plan, the company has made adjustments to its core technical personnel. Former core technical personnel Xu Jiahong and Sun Jian are no longer included in the scope. Xu Jiahong does not hold any shares, while Sun Jian holds 15,000 shares directly, accounting for 0.0033% of the total. The patent achievements participated in by the two individuals belong to the company with no disputes. Chen Jun has been added as a core technical personnel, but does not hold any shares. This adjustment has completed regulatory review and does not affect the ownership of company's intellectual property rights, nor will it have any adverse effects on the core competitiveness and sustainable operating capabilities. The company will strengthen its research and development capabilities through talent introduction, training, incentives, and intellectual property protection in the future.