Hong Kong, 5 June 2026 — In connection with the proposed privatisation of ENN Natural Gas Co., Ltd. by way of scheme of arrangement, Morgan Stanley Capital Services LLC (MSCS), classified as a Class (5) associate of the offeror, filed dealings under Rule 22 of the Hong Kong Code on Takeovers and Mergers.

On 4 June 2026, MSCS executed three unsolicited client-facilitation purchases and three corresponding sales involving cash-settled derivatives linked to ENN Natural Gas A-shares:

• Purchases: 100 reference securities maturing 31 Aug 2027 at RMB 19.25 each, 100 maturing 31 Mar 2027 at RMB 19.35, and 300 maturing 26 Feb 2027 at RMB 19.34, for an aggregate consideration of RMB 9,661.01 (0.01 million).

• Sales: Identical quantities, maturities and prices, generating the same aggregate value of RMB 9,661.01 (0.01 million).

Total gross turnover across the six trades reached RMB 19,322.02 (0.02 million), while the matched nature of the transactions left MSCS with a resultant derivative position of zero.

The dealings were conducted for MSCS’s own account and settled in RMB. MSCS is ultimately wholly owned by Morgan Stanley. No other positions or agreements were disclosed.