Kaien (Suzhou) Private Equity Fund Management Co., Ltd. agreed to acquire a 7% stake in Shenzhen RongDa Photosensitive Science & Technology Co., Ltd from Lin Qi and Lin Guangrong for approximately CNY 210 million on July 13, 2022. 9,800,300 shares will be acquire at CNY 21.60 per share. The payment of the entire share transfer price shall be completed within 30 working days from the date of signing this agreement.