Held Before Acquisition/ Disposition 2 % Group of Held Acquisition/ Disposition 2 % Group of Held After Acquisition/ Disposition 2 Remark 3 File No NCL Miss Montira Charoenwal Disposition Stock 5.9915

Held Before Acquisition/ Disposition 2 % Group of Held Acquisition/ Disposition 2 % Group of Held After Acquisition/ Disposition 2 Remark 3 File No ICN Mr. Sompong Chonecadeedumrongkul Acquisition Stock

Ref. No. IVL 003/02/2019 26 February 2019 The President The Stock Exchange of Thailand Subject: Submission of Annual Audited Financial Statements and the Management Discussion and Analysis of

localized marketing campaigns in prepaid segment remained in selective areas. Adoption of unlimited fixed-speed plans has increased, posting a challenge to uplift ARPU. Recently, more online channels have

. Suthipot Ariyasuthivong Disposition Stock 6.0215 2.1428 3.8787 09/08/2021 6.0215 2.1428 3.8787   246012502108-1 OTO Mr. Suthipot Ariyasuthivong Disposition Stock 10.3072 0.7142 9.593 01/06/2021 10.3072

Jarunun Asavadumrongchai Acquisition Stock 4.4857 6.262 10.7477 16/07/2021 4.4857 6.262 10.7477   246012192107-1 AEC Mr. Luchai Pukananan Disposition Stock 10.4711 6.262 4.2091 16/07/2021 10.4711 6.262

| Stock in SET100 | Offering Date - 04/10/2019 - 17/03/2020

Derivative Warrants | SCC19C2003B | DERIVATIVE CALL WARRANTS ON THE SIAM CEMENT PUBLIC COMPANY LIMITED ISSUED BY YUANTA SECURITIES (THAILAND) COMPANY LIMITED LAST TRADING IN MARCH 2020 # B | Stock in

| Stock in SET50 | Offering Date - 11/10/2019 - 03/04/2020

Derivative Warrants | HMPR41C2003A | DERIVATIVE CALL WARRANTS ON HOME PRODUCT CENTER PUBLIC COMPANY LIMITED ISSUED BY JPMORGAN SECURITIES (THAILAND) LIMITED LAST TRADING IN MARCH 2020 # A | Stock in