accordingly. The revised rules on the rotation of auditors specify that the auditors of a listed company must be rotated off after 7 cumulative years of service and must serve a cooling-off period for 5

matter are changed, SEC must revise the rules on the rotation of auditors accordingly. SEC has recently revised the rules on rotation of auditors of listed companies and will likewise revise such rules

the executive committee or chief executive officer to have an authority regarding the determination and alteration of the date, time, and venue of the Extraordinary General Meeting of Shareholders No. 1

upon any members of executive committee (its agent), managing director (its agent) regarding the determination, and alteration of the date, time, and venue of the Extraordinary General Meeting of

Directors' Meeting No.8/2020, Appointment of Directors in Replacement of Those who will Retire by Rotation, and Addition of Agenda Items for the 2020 Annual General Meeting of Shareholders.(amended) 17/09

; · abnormal operation ; · compliance and alteration a network by unauthorized person. · Preparing a network diagram which having a detail related to scope of internal network and external network and other

[M] ▪ Attempt to trespass via the network ; ▪ abnormal operation; ▪ compliance and alteration a network by unauthorized person. 4 the importance operational system means securities trading system

1 24 August 2020 Subject : Notification on Resolution of the Board of Directors’ Meeting No.8/2020, Appointment of Directors in Replacement of Those who will Retire by Rotation, and Addition of

directors who retired by rotation in 2019, namely: 1. Mr. Patara Yongvanich as Director 2. Mr. Thanachart Numnonda as Director 3. Mr. Soontorn Dentham as Director T.662 636 6999 F.662 646 4200

by rotation consisting of Mr. Suthikiati Chirathivat Mr. Ek-Rit Boonpiti Mr. Russell L. Kekuewa and Mr. Worachai Bhicharnchitr as directors and independent directors of the Company for another term