( 2008) Re: Rules on Connected Transactions, dated August 31, 2008 ( and as amended) and the Notification of the Stock Exchange of Thailand Re: Disclosure of Information and Other Acts of Listed Companies

. TorChor 21/2551 (2008) Re: Rules on Connected Transactions dated 31 August 2008 (as amended) and the Notification of the Board of Governors of the Stock Exchange of Thailand Re: Disclosure of Information

Investor Contacts and Standards of Conduct ______________________ By virtue of: (1) Clause 3(2) of the Capital Market Supervisory Board No. TorNor. 27/2552 Re: Rules, Conditions, and Procedures for

Standards of Conduct ______________________ By virtue of: (1) Clause 3(2) of the Capital Market Supervisory Board No. TorNor. 27/2552 Re: Rules, Conditions, and Procedures for Establishment and Management of

subsidiaries according to the consolidated financial statement at 30 September, 2017. Thereby the Company have to ask the approval for the Board Director Meeting and disclosure information this transaction for

approval for the Board Director Meeting and disclosure information this transaction for the SET. This transaction was not considered as a material transaction of disposal of Asset according to the

or services Revenue item - Business consultancy fees - Warehouse management fees - Movable property rental fees - Information technology system services fees - Training fees Baht 25 million Expense

Supervisory Board No. TorJor. 44/2556 Re: Rules, Conditions and Procedures for Disclosure regarding Financial and Non-financial Information of Securities Issuers) ………………………………………… ………………… 18 Certification of

-Translation- Ref. IR 62/005 March 13, 2019 Subject: transaction yDisclosure of the information regarding related part To : President, The Stock Exchange of Thailand T.K.S. Technologies Public

NEP 045-2562 12 September 2019 Subject: The Sale of the machines to connected person (Add Information) To: President The Stock Exchange of Thailand The resolution of the Board of Directors’ Meeting