1 -Translation- No.ECF2 004/2018 24 January 2018 Subject: Change in Shareholding Structure of the Planet Board Company Limited, a Subsidiary Company of the Company To: President The Stock Exchange of

exchange rate of receivable under finance lease agreement, gain(loss) on forward contracts, insurance claim and gain from business acquisition. Change QoQ Consolidated financial statements Change YoY 2

Limited, equivalent to 3,311,172.50 baht. After the transaction is completed, CWTG will hold approximately 100% of the shares in GP1 And all sold. Shareholding structure: Before Change Shareholding

, consists of unrealised gain (loss) on exchange rate of receivable under finance lease agreement and gain (loss) on forward contracts. Change Financial Performance of the Group 2 Sales and service income for

ended as of September 30, 2021, which can be summarized as follows: 1) Profit & Loss Analysis : Q3 2021 (3 Months) (Unit : Million Baht unless otherwise stated) Q3 2021 Q3 2020 Change Amount % Change

1 -Translation- Ref :IR 62/023 December 23, 2019 Subject: Change in Shareholding Structure of Subsidiary Company (edit) To: President, The Stock Exchange of Thailand T.K.S. Technologies Public

1 -Translation- Ref :IR 62/023 December 23, 2019 Subject: Change in Shareholding Structure of Subsidiary Company (edit no.2 ) To: President, The Stock Exchange of Thailand T.K.S. Technologies Public

-Translation- No. ECF2 039/2019 18 October 2019 Subject: Notification of the Postponement of the Extraordinary General Meeting of Shareholders No.1/2019 and the change of record date for shareholders

securities, representing a total loss increase amount of Baht 35 million, comparing to same period of last year. It is the transaction of unrealized loss on investments are stated of fair value or market price

Baht per share, the disposal value of Baht 115 million, and the Company was paid for the disposal of such share proportion on August 15, 2017, resulting in the change of the Company’s shareholding