Hong Kong, 4 June 2026—In connection with the proposed privatisation of ENN Natural Gas Co. Ltd. by way of a scheme of arrangement, UBS AG, an exempt principal trader connected with the offeree, disclosed a series of A-share transactions executed on 3 June 2026 under Rule 22 of the Hong Kong Code on Takeovers and Mergers.

UBS AG bought 318,500 ENN Natural Gas A shares for RMB 6.24 million and sold 431,100 shares for RMB 8.44 million, resulting in a net sale of 112,600 shares worth approximately RMB 2.20 million. All trades were undertaken to hedge Delta-1 and other equity-related products stemming from wholly unsolicited, client-driven orders.

• Purchase activity: 318,500 shares acquired at prices between RMB 19.42 and RMB 19.68, with the largest single tranche involving 269,500 shares for RMB 5.28 million. • Sale activity: 431,100 shares disposed of at prices ranging from RMB 19.32 to RMB 19.76, the biggest block being 324,600 shares for RMB 6.35 million. • Aggregate transaction value: RMB 14.68 million across all purchases and sales, with the day’s trading band spanning RMB 19.32–19.76 per share.

According to the filing, the dealings were executed on UBS AG’s own account for hedging purposes. UBS AG is wholly owned by UBS Group AG. All figures are presented in renminbi, as disclosed.