Determination of the Schedule of the Company 2022 Annual General Meeting of Shareholders and the agendas to be proposed to the 2022 Annual General Meeting of Shareholders for consideration, Dividend payment, Capital decrease

                Schedule of Shareholders' meeting

Subject                                  : Schedule of Annual General Meeting of
 Shareholders
Date of Board resolution                 : 28-Feb-2022
Shareholder's meeting date               : 29-Apr-2022
Beginning time of meeting (h:mm)         : 14 : 00
Record date for the right to attend the  : 16-Mar-2022
meeting
Ex-meeting date                          : 15-Mar-2022
Significant agenda item                  :
  - Cash dividend payment
  - Capital decrease
Venue of the meeting                     : The 2022 AGM will be held via  
electronic media (E-Meeting) in accordance with the criteria specified in the
law on electric meeting.
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Dividend payment / Omitted dividend payment

Subject                                  : Cash dividend payment
Date of Board resolution                 : 28-Feb-2022
Type of dividend payment                 : Cash dividend payment
Record date for the right to receive     : 10-May-2022
dividends
Ex-dividend date                         : 09-May-2022
Payment for                              : Common shareholders
Cash dividend payment (baht per share)   : 0.42
Par value (baht)                         : 0.50
Payment date                             : 24-May-2022
Paid from                                :
    Operating period from 01-Jul-2021 to 31-Dec-2021  and retained Earnings

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