the Office, if the service providers are as follows: (1) The Stock Exchange of Thailand or; (2) Limited company or public limited company established by the Stock Exchange of Thailand and hold shares

-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

-Translation- Ref. IR 62/005 March 13, 2019 Subject: Disclosure of the information regarding related party transaction (Additional Information) To : President, The Stock Exchange of Thailand T.K.S

บริษัท วนชัย กรุ๊ป จำกัด(มหาชน) - Translation - 24 May 2019 Subject : Disclosure of connected transaction by a subsidiary Attention : President The Stock Exchange of Thailand Vanachai Group Public

December 3, 2018 Re: Assistance financial to the related companies. To: Director and Manager of Stock Exchange of Thailand According to the Board of meeting of D.T.C. Industries Plc. No. 6/2018 on

NEP 045-2562 12 September 2019 Subject: Resolutions of the Board of Directors' Meeting regarding entering into transaction with connected person To: President The Stock Exchange of Thailand The

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

บริษัท วนชัย กรุ๊ป จำกัด(มหาชน) - Translation - 11 June 2020 Subject : Disclosure of connected transaction by a subsidiary Attention : President The Stock Exchange of Thailand Vanachai Group Public

Limited and other information according requested by SET) Dear Directors and Managers Stock Exchange of Thailand According to Advanced Connection Corporation Public Company Limited, the “Company” has

the Stock Exchange of Thailand ( “ SET” ) immediately and submit the information; with the minimum requirement according to List (1) of the Notification concerning acquisition or disposal of assets, to