more than 15.00 percent but less than 50.00 percent, which requires the Company to disclose the information memorandum on the Transaction to the Stock Exchange of Thailand (the “SET”) and send the

Transaction on Acquisition of Assets and Determination of the 2020 Annual General Meeting of Shareholders To: Director and Manager The Stock Exchange of Thailand Enclosure 1. Information Memorandum on the

actions: 2 (1) disclose information on the class 2 transaction to the Stock Exchange of Thailand (the “SET”) pursuant to the Acquisition and Disposition Notifications (as detailed below in item A (GSG

has already entered into the transaction as prescribed in Clause 22, it shall disclose adequately and appropriately such transaction to a client or a representative of the client . Clause 24 In case a

Limited To: Director and Manager The Stock Exchange of Thailand As the Board of Directors Meeting of Wiik & Hoeglund Public Company Limited ("the Company") No. 5/2018 on October 12, 2018, approved Wiik

consideration and approval to the shareholders’ meeting. Accordingly, the Company shall have the following duties: (a) To prepare and disclose the information of the transaction to the Stock Exchange in

size of more than or equals to 15 percent but less than 50 percent which requires the Company to disclose the information memorandum to the Stock Exchange of Thailand and send the circular notice to

Acquisition. To: The President The Stock Exchange of Thailand Enclosure 1. Information Memorandum on the Acquisition of Assets of Hydrotek Public Company Limited 2. Capital Increase Form (F 53-4) 3. Information

Disposal of Assets Notifications and the Connected Transactions Notifications, the Company is consequently obliged to submit and disclose the information related to this Transaction to the Stock Exchange of

, pursuant to the Acquisition and Disposition of Assets Notifications. Therefore, the Company is required to proceed as follows: (1) disclose the information memorandum on Class 1 Transaction to the Stock