New shares of QDC to be traded on December 25, 2025

Additional listed securities Subject : Additional listed shares Company name : QUANTUM D C PUBLIC COMPANY LIMITED (QDC) Old capital (baht) : 2,149,825,500.00 - Common stock (Unit: shares) : 14,332,170 Number of additional shares : - Common stock (Unit: shares) : 185,345,002 New capital (baht) : 29,951,575,800.00 - Common stock (Unit: shares) : 199,677,172 Par value (baht per share) : 150.00 Allocated to : Right offering Ratio (Old share : New shares) : 1.00 : 55.00 Subscription price (baht per share) : 0.13 Subscription and payment period : From 15-Dec-2025 to 19-Dec-2025 Trading date : 25-Dec-2025 ______________________________________________________________________