Hong Kong, 20 March 2026—The Executive (Takeovers and Mergers) has published a Public Disclosure Form detailing recent trading in ENN Energy Holdings Limited (02688) shares ahead of the company’s proposed privatisation by way of scheme of arrangement.

UBS AG, classified as an exempt principal trader connected with the offeree, executed three transactions on 19 March 2026 for its own account:

• Delta-1 hedging linked to wholly unsolicited client-driven orders led to the purchase of 242,300 ordinary shares at prices between $65.83 and $66.06, for a total consideration of approximately $15.99 million.

• A further 100 shares were bought for $0.01 million at $65.50 following the redemption of index-tracking ETFs arising from unsolicited client requests.

• Separately, 900 shares were sold at $66.10 each, generating proceeds of roughly $0.06 million.

Aggregating the above, UBS AG recorded a net purchase of 241,500 ENN Energy shares on the day, equivalent to a net cash outflow of approximately $15.94 million. Across all transactions, the highest executed price was $66.10 per share, while the lowest was $65.50.

The disclosure forms part of ongoing reporting obligations under Rule 22 of the Hong Kong Code on Takeovers and Mergers during ENN Energy’s privatisation process. UBS AG is ultimately owned by UBS Group AG. No other details were provided in the filing.