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

acquisition of asset in accordance with the Notification of the Capital Market Supervisory Board and the Notification of the Stock Exchange of Thailand (“SET”) and submitted the Information Memorandum regarding

Memorandum of an acquisition of asset in accordance with the Notification of the Capital Market Supervisory Board and the Notification of the Stock Exchange of Thailand (“SET”) and submitted the Information

Exchange of Thailand Enclosure Capital Increase Form (F 53-4) (amended) Following Hydrotek Public Company Limited (the “Company”)’s Board of Directors’ Meeting No. 10/2017 held on October 19, 2017 at 5.00 pm

Bangkok, April 3, 2012 ? The SEC in cooperation with the Ministry of Interior, the Stock Exchange of Thailand (SET), the Federation of Thai Industries, Thai Chamber of Commerce, Investment Banking

:(1) Every five percent report will apply only to  securities issued by company listed on the Stock Exchange of Thailand (SET);(2) Submission of a copy of report to the SET will no longer be required as

Stock Exchange of Thailand without the approval from the shareholders. - 5 - 2) Appointment of the Company’s Executives The Meeting approved the appointment of the Company’s Executive and the Executive