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

. 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

Assets and Connected Transaction for the Entire Business Transfer and Allocation of Securities to the Specific Investor (Private Placement) To The President The Stock Exchange of Thailand Attachment 1

Notification of the Board of Governor of the Stock Exchange of Thailand Re: Disclosure of Information and Other Acts of Listed Companies concerning Connected Transactions B.E. 2546 (2003) (as amended) (the

Governor of the Stock Exchange of Thailand Re: Disclosure of Information and Other Acts of Listed Companies concerning Connected Transactions B.E. 2546 (2003) (as amended) (the “Connected Transaction

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

per share. In case of having other securities listed elsewhere, identify the name of the Stock Exchange. (2) In case of having other types of share such as preferred share whose rights or terms differ

years of Stock Exchange of Thailand index (2015-2017) the CAGR was situated at 10.8 per year. Therefore, the 1.43 Baht per share conversion price is reasonable. After considered the both transaction, the

Allocation of Securities to the Specific Investor (Private Placement) (Amendment 3) To The President The Stock Exchange of Thailand Attachment 1. Information Memorandum regarding the Acquisition of Assets and

into Material Transactions Deemed as Acquisition or Disposal of Assets, and the Notification of the Board of Governors of the Stock Exchange of Thailand, Re: Disclosure of Information and Other Acts of