Hong Kong, 10 June 2026—Morgan Stanley & Co. International plc, a Class (5) associate of the offeror in the proposed privatisation of ENN Natural Gas Co., Ltd., has disclosed a series of client-facilitation derivative transactions in the target’s A-shares, according to a filing submitted under Rule 22 of the Hong Kong Code on Takeovers and Mergers.

On 9 June 2026 the investment bank executed the following trades:

• Purchases: – 40 derivatives expiring 9 March 2028 at RMB 19.0000 each, totalling RMB 760.00. – 100 derivatives expiring 30 November 2027 at RMB 18.8800 each, totalling RMB 1,888.00. – 700 derivatives expiring 24 July 2028 at RMB 18.8171 each, totalling RMB 13,172.00.

• Sales (same day, same strikes and maturities): – 40 derivatives expiring 9 March 2028 at RMB 19.0000 each, totalling RMB 760.00. – 700 derivatives expiring 24 July 2028 at RMB 18.8171 each, totalling RMB 13,172.00.

The combined gross value of purchases and sales amounted to RMB 15,820.00 on each side, leaving Morgan Stanley with a resultant net position of zero in ENN Natural Gas A-share derivatives. The transactions were carried out in renminbi for the firm’s own account as unsolicited client facilitation. Morgan Stanley & Co. International plc is ultimately owned by Morgan Stanley.

The disclosure forms part of ongoing reporting requirements during the proposed scheme-of-arrangement process to privatise ENN Natural Gas.