Investor Alert News An important information that shareholders and public investors should concern before making any voting or investing decisions. ______________________________________________________________________ Delisting Subject : Delisting Security name - THAI RAYON PUBLIC COMPANY LIMITED (TR) Delisted date : 17-Nov-2026 Reason : - Violated regulations Remark : The company has not been able to rectify its free float qualifications to meet the requirement. ______________________________________________________________________ Sign lifted Subject : SP Sign temporary lifted Security name - THAI RAYON PUBLIC COMPANY LIMITED (TR) Sign lifted : SP Sign lifted on (date) : From 06-Nov-2026 to 16-Nov-2026 Reason : In order to provide opportunity for investors to temporary trade securities before delisting Remark : - For the first day of trading of TR on November 6, 2026, SET will waive the ceiling & floor price rule, dynamic price band, and auto-pause. These measures will continue until a trade occurs, after which normal regulations will resume on the next business day. - The securities of TR will be excluded from the calculation of SET Index. ______________________________________________________________________ Sign posted Subject : Non-compliance (NC) sign posted Security name - THAI RAYON PUBLIC COMPANY LIMITED (TR) Sign posted : NC Sign posted on (date) : From 06-Nov-2026 to 16-Nov-2026 Reason : Remained NC sign and to be purchased with Cash Balance Account ______________________________________________________________________

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