Transaction 28/05/2020 17:10 Notification of Resolutions of the Board of Directors Meeting for approval of the connected transactions of the Subsidiaries of the Company. 11/05/2020 07:22 Notification of

Resolutions according to the Connected Transactions in the Company (Real Estate Rental) 22/03/2021 17:08 Announces a Connected Transaction (To lease the office space in one year contract) 24/03/2020 17:05 To

Notification of the Board of Governors of the SET entitled Disclosure of Information and Other Acts of the Listed Company Concerning the Acquisition or Disposition of Assets, 2004 (the “Major Transaction Rules

Management Name : Mr PONGPHAN SAMPAWAKOOP | Type of securities : Common share | Methods of Acquisition / Disposition : Buy | Transaction Date : 15/11/2017

Management Name : Mr PONGPHAN SAMPAWAKOOP | Type of securities : Common share | Methods of Acquisition / Disposition : Buy | Transaction Date : 16/11/2017

Management Name : Mr SUWATCHAI WONGCHAROENSIN | Type of securities : Common share | Methods of Acquisition / Disposition : Receive | Transaction Date : 23/05/2017

Management Name : Mr KITICHAI WONGCHAROENSIN | Type of securities : Common share | Methods of Acquisition / Disposition : Receive | Transaction Date : 23/05/2017

Management Name : Mr MANOCH WONGCHAROENSIN | Type of securities : Common share | Methods of Acquisition / Disposition : Receive | Transaction Date : 08/04/2016

Management Name : Mr VIVAT WONGCHAROENSIN | Type of securities : Common share | Methods of Acquisition / Disposition : Receive | Transaction Date : 23/05/2017

Management Name : Mr VIVAT WONGCHAROENSIN | Type of securities : Common share | Methods of Acquisition / Disposition : Receive | Transaction Date : 20/09/2017