SINOPEC Announces Material Financial Information Due to Securities Trading Alert Threshold on Centralized Market

1. Date of Event: July 7, 115 (2026)

2. Reason for Disclosure: In accordance with notification from the Taiwan Stock Exchange Corporation

3. Financial and Business Information:

Period (Monthly) (Monthly) (Quarterly) (Quarterly) (Last Four Quarters) ============== =========== ========== ============ ========= ============== Item Most Recent YoY Change Most Recent YoY Change Cumulative from Month (May (%) Quarter (Q1 (%) Q2 2025 to Q1 2026) 2026) 2026 Consolidated Consolidated 2026 Preliminary Reviewed Reviewed Figures Figures Figures ============== =========== ========== ============ ========= ============== Revenue (NT$M) 1,290 -23.97% 4,902 -37.07% 16,806 Pre-tax Net Profit 670 209.92% (263) -2.19% (2,482) Net Profit Attributable to Owners of Parent 671 210.72% (263) 14.39% (2,922) Earnings Per Share (NT$) 0.18 212.50% (0.07) 12.50% (0.77)

4. Whether there is any material information under Article 4 of the 'Procedures for Verification and Disclosure of Material Information by Listed Companies on Securities Trading' by the Taiwan Stock Exchange Corporation: No

5. Whether there is any requirement to hold a press conference under Article 11 of the same procedures: No

6. Complete financial information is available on the Public Information Observation Station. Access paths:

(1) Recent operating revenue and profit/loss: Basic Information > Summary Version (2) Historical monthly revenue: Operations Overview > Monthly Revenue > Monthly Operating Revenue Information (Post-IFRS) (3) Historical profit/loss (audited/reviewed): Financial Statements > Post-IFRS > Consolidated/Individual > Comprehensive Income Statement (4) Historical profit/loss (voluntary preliminary announcements): Operations Overview > Preliminary Profit/Loss Announcements

7. Other Matters to be Disclosed: None