Notification the exercise of securities/ Notification the conversion of securities Subject : Notification the Final Exercise of securities Date announced : 05-Oct-2026 Name of securities : XBIO-W6 Exercise date : 04-Jan-2027 Book closing date of warrant : From 14-Dec-2026 to 04-Jan-2027 registration Date of request to post "SP" sign : From 09-Dec-2026 to 04-Jan-2027 The notification period for the exercise : From 20-Dec-2026 to 03-Jan-2027 of the securities Exercise price (baht per share) : 0.69863 Exercise ratio (Warrants : common : 1 : 2.14706 shares) Delisting date : 05-Jan-2027 Exercise Procedure : https://www.xbio.co.th/th/subscription-documents-for-newly-issued-ordinary-share s-of-x-bioscience-public-company-limited/ Contact Persons and Place to Exercise : Miss Ramjai Sriprommin Tel 02-278-5456 4/102 Moo 11, Lat Sawai Subdistrict, Lum Luk Ka District, Pathum Thani, 12150 Authorized to sign on behalf of the : Mr. Amnart Lertprasertwong company Position : Chief Executive Officer ______________________________________________________________________ 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.

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