Hong Kong, 22 May 2026 — Wellington Management Group LLP, classified as a Class (6) associate of ENN Energy Holdings Limited under the Hong Kong Code on Takeovers and Mergers, disclosed fresh dealings in ENN Energy shares linked to the company’s ongoing privatisation by way of scheme of arrangement.

On 22 May 2026, Wellington Management executed the following transactions on a US exchange for discretionary investment clients:

• Purchases: 259,601 shares at USD 58.10 each, 3,700 shares at USD 59.55, and 1,267 shares at USD 60.64 • Sale: 1,200 shares at USD 58.79

The net addition of 263,368 shares lifted Wellington Management’s stake to 70.72 million shares, equivalent to 6.25 % of ENN Energy’s issued share capital. The investment firm is ultimately owned by Wellington Management Company LLP.

The disclosure forms part of the Rule 22 reporting requirements under the Takeovers Code during ENN Energy’s privatisation process. No other transaction details were provided.