Board No. TorJor 20/2551 Re: Rules on Entering into Material Transactions Deemed as Acquisition or Disposal of Assets and the Notification of the Stock Exchange of Thailand Re: Disclosure of Information

regarding the Acquisition and Disposition of Assets of the Company (Revised) Attention: President, The Stock Exchange of Thailand According to the resolution of the Board of Director’s Meeting No. 8/2019 of

area and also from the decline in construction material sales in line with the slowed down in the real estate sector. Additionally, investment in machinery and equipment also contracted as exhibited by

from the decline in construction material sales in line with the slowed down in the real estate sector. Additionally, investment in machinery and equipment also contracted as exhibited by the decline in

of Governors of the Stock Exchange of Thailand Reference is made to the resolutions of the Board of Directors’ Meeting No. 6/2018 of Master Ad Public Company Limited (the “Company”), held on May 17

Meeting of Shareholders’ agenda To President The Stock Exchange of Thailand Reference: 1. The letter to the Stock Exchange of Thailand of East Coast Furnitech Public Company Limited on the resolutions of

to investors in private placement, the acquisition of assets and convening the Extraordinary General Meeting of the Shareholders No. 1/2018 (Revise) To : President, The Stock Exchange of Thailand

., and Schedule for the EGM of Shareholders No. 1/2019 To: The President The Stock Exchange of Thailand Enclosure: 1. Information Memorandum of Hydrotek Public Company Limited on Disposal of Assets and

., and Schedule for the EGM of Shareholders No. 1/2019 (Revised) To: The President The Stock Exchange of Thailand Enclosure: 1. Information Memorandum of Hydrotek Public Company Limited on Disposal of

., and Schedule for the EGM of Shareholders No. 1/2019 (Revised2) To: The President The Stock Exchange of Thailand Enclosure: 1. Information Memorandum of Hydrotek Public Company Limited on Disposal of