1314 Sinopec Announces Disposal of Zhonggong Shares Exceeding NT$300 Million Within One Year

Release Date: August 18, 115 (2026) Statement Date: August 17, 115 (2026) Statement Time: 18:08:51 Company Code: 1314 Company Name: Sinopec Subject: Announcement of Resolution to Dispose of Same Securities Exceeding NT$300 Million Within One Year Applicable Clause: Clause 20 Event Date: August 17, 115 (2026)

Details: 1. Security Name: Zhonggong Ordinary Shares

2. Transaction Date: 115/7/24 ~ 115/8/17 (July 24 to August 17, 2026)

3. Board Approval Date: Not applicable

4. Other Approval Dates: Approval Level: Approved by Chairman August 17, 115 (2026)

5. Transaction Quantity, Unit Price, and Total Amount: Transaction Quantity: Total of 45,993,000 shares Unit Price: Not yet sold; estimated based on closing price of NT$11.85 on approval date (August 17) Total Transaction Amount: NT$545,017,050

6. Gain (or Loss) from Disposal (Not applicable for acquisition of securities): The disposal involves selling financial assets measured at fair value through other comprehensive income. The result will be recorded in equity on the balance sheet and will not affect the company's current earnings.

7. Relationship with the Target Company: Zhonggong is a company where one of Sinopec's directors serves.

8. Cumulative Holdings of the Security (including this transaction) to Date – Quantity, Amount, Ownership Percentage, and Restricted Rights (e.g., pledged shares): Remaining Holdings: 78,322,175 shares, Amount: NT$52,509,744,925, Ownership Percentage: 4.87%, Restricted Rights: 87,017,000 shares pledged.

9. Cumulative securities investments under Article 3 of the 'Asset Acquisition and Disposal Rules for Publicly Issued Companies' (including this transaction), as a percentage of total assets and equity attributable to owners of the parent in the latest financial statements, and the amount of working capital in the latest financial statements: Percentage of Total Assets: 45.2% Percentage of Equity Attributable to Owners of the Parent: 69.67% Working Capital Amount: (NT$9,048,815) thousand

10. Specific Purpose of Acquisition or Disposal: Capital efficiency optimization.

11. Dissenting Director Opinions on This Transaction: Not applicable.

12. Whether This Transaction is a Related-Party Transaction: No

13. Counterparty and Relationship with the Company: Not applicable.

14. Date of Supervisor Approval or Audit Committee Consent: Not applicable.

15. Previous Material Information Release Date for the Same Event: Not applicable

16. Other Disclosures: The shares have not yet been sold. The disclosed data is estimated based on the closing price of NT$11.85 on the approval date, August 17, 115 (2026).