Capital Market Supervisory Board No. TorChor. 21/2551 (2008) Re: Rules on Connected Transaction (as amended) and the Notification of the Board of Governors of the Stock Exchange of Thailand Re: Disclosure

transaction is not considered Connected Transactions as stated in Notification of the Capital Market Supervisory Board No. Tor Chor. 21/2551 or the Notification of the Board of Governors of the Stock Exchange

) and the Notification of the Board of Governors of the Stock Exchange of Thailand Re: Disclosure of Information and Other Acts of Listed Companies Concerning the Acquisition or Disposal of Asset BE 2547

(Unofficial Translation) Readers should be aware that only the original Thai text has legal force, and that this English translation is strictly for reference. Notification of the Securities and

Board TorChor. 21/2551 regarding Rules on Connected Transactions, dated August 31, 2008 (as amended) and the Notification of the Board of Governors of the Stock Exchange of Thailand (the “SET”) regarding

1 EFORL 031/2017 August 15, 2017 Subject: Notification the waiver of subscription right to capital increase of WCI Holding Co., Ltd. To: President The Stock Exchange of Thailand Ref: Letter no. EFORL

ที่ BCH No.BCH.019/2018 26 February 2018 Subject : Approval of transaction with connected person Attention : The President The Stock Exchange of Thailand The Board of Directors’ Meeting of Bangkok

ที่ BCH No.BCH.019/2018 26 February 2018 Subject : Approval of transaction with connected person (Additional) Attention : The President The Stock Exchange of Thailand The Board of Directors’ Meeting

1 / 2 IR.011/2019 14 May 2019 Re: Notification of the changes of the Profit and Loss Statement To President The Stock Exchange of Thailand T Engineering Corporation Public Company Limited (the

subject to the Notification of the Board of Governors of the Stock Exchange of Thailand Re : Disclosure of Information and Other Acts of Listed Companies Concerning the Acquisition and Disposition of Asset