According to a disclosure filed under Rule 22 of the Hong Kong Code on Takeovers and Mergers, UBS AG—classified as a Class (6) associate of Guotai Junan International Holdings Ltd (“GUOTAI JUNAN I”)—executed a series of on-market transactions in the target company’s shares on 22 October 2026.

• Transaction summary: – Purchases: 3.53 million shares at prices ranging from HK$2.8645 to HK$2.8863 per share. – Sales: 0.21 million shares at prices between HK$2.8650 and HK$2.8783 per share.

• Net impact: UBS AG increased its position by 3.32 million shares, taking its aggregate holding to 696.92 million shares, equivalent to 7.31% of GUOTAI JUNAN I’s issued share capital.

• Context: The dealings were carried out for UBS AG’s own account amid the ongoing privatisation of GUOTAI JUNAN I by way of a scheme of arrangement. UBS AG is ultimately owned by UBS Group AG.

The revised disclosure supersedes the form dated 23 October 2026 and was received by the Executive after office hours on the same date.