On 29 October 2026, Guotai Junan International Holdings Ltd. disclosed to the Hong Kong Takeovers Executive that Class (6) associate UBS AG executed multiple on-market transactions in the company’s shares on 28 October 2026 under the ongoing privatisation by scheme of arrangement.

Key transaction details • Purchases: UBS AG bought a total of 32.76 million shares at prices ranging from HK$2.8550 to HK$2.8640, representing a cash outlay of approximately HK$94.40 million. • Sales: The bank subsequently sold 99,000 shares at prices between HK$2.8628 and HK$2.8682, generating about HK$0.28 million in proceeds. • Net effect: After net purchases of 32.66 million shares (HK$94.11 million), UBS AG’s stake increased from 724.72 million shares to 725.64 million shares, lifting its shareholding from 7.60 % to 7.61 % of Guotai Junan International’s issued share capital.

Regulatory context The trades were conducted for UBS AG’s own account. As an associate of the offeree company, UBS AG is required under Rule 22 of the Hong Kong Code on Takeovers and Mergers to disclose dealings during the privatisation process. UBS AG is wholly owned by UBS Group AG.

No further information regarding the terms of the privatisation scheme, timetable, or strategic intentions was provided in the disclosure.