① Yingjixin: The IPA1299, jointly launched by the company and participating company Jingxinweier, is an 8-channel low-noise, 24-bit simultaneous sampling analog-to-digital converter chip. It is mainly used in EEG, ECG, and EMG. The main feature of this product is that it can achieve high-precision signal acquisition functions and can be used in the field of non-intrusive brain-computer interfaces. This product is used for high-precision measurement of human bioelectric signals. It is suitable for various wearable device application scenarios. The technical route is significantly different from the current international intrusive brain-computer interface. ② Lanqi Technology: XConn Technologies Holdings, Ltd., a wholly-owned subsidiary of Lanqi Cayman, has received an offer from Marvell Technology, Inc., and the buyer plans to acquire all of the shares in the target company. After the transaction is completed, Lanqi Cayman will no longer hold shares in the underlying company. ③ Guangfa Securities: It is proposed to place 219 million additional H shares issued by the Company to eligible independent investors at an placement price of HK$18.15 per share, and issue bonds convertible to the Company's H shares with a total principal amount of HK$2.15 billion.

① Yingjixin: The IPA1299, jointly launched by the company and participating company Jingxinweier, is an 8-channel low-noise, 24-bit simultaneous sampling analog-to-digital converter chip. It is mainly used in EEG, ECG, and EMG. The main feature of this product is that it can achieve high-precision signal acquisition functions and can be used in the field of non-intrusive brain-computer interfaces. This product is used for high-precision measurement of human bioelectric signals. It is suitable for various wearable device application scenarios. The technical route is significantly different from the current international intrusive brain-computer interface. ② Lanqi Technology: XConn Technologies Holdings, Ltd., a wholly-owned subsidiary of Lanqi Cayman, has received an offer from Marvell Technology, Inc., and the buyer plans to acquire all of the shares in the target company. After the transaction is completed, Lanqi Cayman will no longer hold shares in the underlying company. ③ Guangfa Securities: It is proposed to place 219 million additional H shares issued by the Company to eligible independent investors at an placement price of HK$18.15 per share, and issue bonds convertible to the Company's H shares with a total principal amount of HK$2.15 billion.