[GVC] Announcement regarding the correction of operating revenue for December 2025, January 2026, and cumulative revenue from Dec 2025 to Apr 2026

1. Date of occurrence: May 19, 2026 2. Company name: GVC Corporation 3. Relationship to the company: Self 4. Mutual shareholding ratio: Not applicable 5. Reason for occurrence: The company's consolidated Indonesian subsidiary adjusted the amount previously recognized as deferred revenue in December 2025 into current period revenue upon the adjustment by the accountant, and simultaneously reduced the corresponding operating revenue for January 2026. 6. Items corrected: Operating revenue for December 2025 and January 2026, and cumulative operating revenue from December 2025 to April 2026. 7. Figures before correction (Unit: NT$1,000): - Dec 2025: Current 20,906, Cumulative 376,520 - Jan 2026: Current 37,174, Cumulative 37,174 - Feb 2026: Current 33,061, Cumulative 70,235 - Mar 2026: Current 23,026, Cumulative 93,261 - Apr 2026: Current 30,409, Cumulative 123,670 8. Figures after correction (Unit: NT$1,000): - Dec 2025: Current 32,092, Cumulative 387,706 - Jan 2026: Current 26,015, Cumulative 26,015 - Feb 2026: Current 33,061, Cumulative 59,076 - Mar 2026: Current 23,026, Cumulative 82,102 - Apr 2026: Current 30,409, Cumulative 112,511 9. Response measures: Published a major announcement on the MOPS and corrected the monthly operating revenue announcement. 10. Other matters: None.