1 10000/055/2018 20 June 2018 Subject: Notification of the Investment in OKEA AS To: Directors and Manager The Stock Exchange of Thailand Bangchak Corporation Public Company Limited (the “Company

1 / 2 IR.017/2018 14 August 2018 Re: Notification of the changes of the Profit and Loss Statement To President The Stock Exchange of Thailand We, T Engineering Corporation Public Company Limited (the

from Board of directors. 3 Type of transaction : The transaction mentioned above is classified to be a connected transaction in compliance with notification of Board of Director of the Stock Exchange of

those by The Board of Directors : - None- 9. Transaction volume : Above transactions came under the scope of connected transactions for listed companies as specified in Notification of The Capital Market

1 / 2 IR.023/2018 13 November 2018 Re: Notification of the changes of the Profit and Loss Statement To President The Stock Exchange of Thailand We, T Engineering Corporation Public Company Limited

by The Board of Directors : - None- .../5 - 5 - 9. Transaction volume : Above transactions came under the scope of connected transactions for listed companies as specified in Notification of The

accordance with the Stock Exchange of Thailand Notification, Re: Disclosure and Acts of Listed Companies on Connected Transactions B.E. 2546 (2003), as per the following details: 1. Transaction Date (Agreement

party transaction as prescribed the Notification of the Board of Governor of the Securities Exchange of Thailand re: Disclosure of Information and other Acts of Listed Companies Concerning the Connected

Baht, the transaction is considered as connected party transaction as prescribed the Notification of the Board of Governor of the Securities Exchange of Thailand re: Disclosure of Information and other

Transaction’s Total Value Total value of transaction is 4,885,600 Baht, the transaction is considered as connected party transaction as prescribed the Notification of the Board of Governor of the Securities