Notification of the BOD Resolution No.1/2026 - re: Schedule for Subscription & Payment for the Right Offering (RO) - Second Round, Allocation of Warrants QDC-W3 to Existing Shareholders (Allocation Ratio: 1 Existing Share to 42 New Shares) (Revised)

Changing the Par Value Subject : Merging the par value Old par value (baht per share) : 3.75 New par value (baht per share) : 150.00 ______________________________________________________________________ Issued Convertible Securities Subject : Issued convertible securities Date of Board resolution (Update) : 06-Jan-2026 Type of allocated securities : Warrants Allocate to : Existing Shareholders who subscribe for additional shares Number of allotted warrants (units) : 286,643,400 Reserved shares for the exercise of : Common shares warrants Number of additional shares (shares) : 286,643,400 Ratio (additional shares : Warrant) : 55.00 : 20.00 Offering price (baht per unit) : 0 Description of warrants Warrant Symbol (Update) : QDC-W3 Name of warrant (Update) : Warrants to Purchase Ordinary Shares of Quantum D C Public Company Limited Company Limited No. 3 Exercise ratio (warrant : share) : 1.00 : 1.00 Exercise price (baht per share) : 0.03 Term of warrants : 1 year from the issuance date of the Warrant Remark (New) : Ordinary shares issued in a capital increase and offered to existing shareholders in proportion to their shareholding (Right Offering: RO), together with QDC-W3 warrants allocated to the Company's existing shareholders who subscribe for RO shares in the second offering (being the remaining shares from the first RO allocation, totaling 602,924,348 shares). ______________________________________________________________________ Increasing Capital Subject : Specifying the purpose of utilizing proceeds Date of Board resolution (Update) : 06-Jan-2026 Number of additional common shares : 889,567,748 (shares) (Update) Total of additional shares (shares) : 889,567,748 (Update) Par value (baht per share) : 150.00 Type of allocated securities : Common shares Allocated to : All Common shares' shareholders Number of allotted shares (shares) : 602,924,348 (Update) Ratio (Old : New) (Update) : 1.00 : 42.00 Subscription price (baht per share) : 0.13 Subscription period (Update) : From 26-Jan-2026 to 30-Jan-2026 Record date for the right to : 26-Nov-2025 subscribe additional shares Ex-Rights Date (XR) : 25-Nov-2025 Allocated to : Reserved shares for the exercise of convertible securities Number of allotted shares (shares) : 286,643,400 Remark : Remark :The capital increase will be carried out after the change in the par value (PAR). ______________________________________________________________________ This announcement was prepared and disseminated by listed company or issuer through the electronic system which is provided for the purpose of dissemination of the information and related documents of listed company or issuer to the Stock Exchange of Thailand only. The Stock Exchange of Thailand has no responsibility for the correctness and completeness of any statements, figures, reports or opinions contained in this announcement, and has no liability for any losses and damages in any cases. In case you have any inquiries or clarification regarding this announcement, please directly contact listed company or issuer who made this announcement. If you would like to see the full details of this information, please click view "full details" in attached file.