to be made as appropriate. Please be informed accordingly. Yours sincerely, -Signature- (Mr. Slib Soongswang) Chief Executive Officer Authorized Signatory Attachment 1 -Translation- 1/18 Information

accordingly. Sincerely yours, (Ms. Warangkana Kalayanapradit ) Assistant to Chief Executive Officer Enclosure 1 Page 1 from 11 Information Memorandum on the Disposal of Komchadluek Business and Trademark of

-Translation- No. ECF2 044/2561 3 December 2018 Subject: Notification of the resolutions of the Board of Directors’ Meeting approving the investment in purchasing the ordinary shares of S-TREK (Thailand) Co., Ltd., capital increase, and the issuance and allocation of the newly issued ordinary shares to the specific person under the private placement basis, and the schedule for Extraordinary General Meeting No. 1/2019 To President The Stock Exchange of Thailand Enclosure 1. Information Memorandum...

No. ECF2 044/2561 3 December 2018 Subject: Notification of the resolutions of the Board of Directors’ Meeting approving the investment in purchasing the ordinary shares of S-TREK (Thailand) Co., Ltd., capital increase, and the issuance and allocation of the newly issued ordinary shares to the specific person under the private placement basis, and the schedule for Extraordinary General Meeting No. 1/2019 (Additional) To President The Stock Exchange of Thailand Enclosure 1. Information Memorandum...

-Translation- No. ECF2 005/2019 17 January 2019 Subject: Cancellation of the resolutions of the Board of Directors’ Meeting No. 13/2018 in relation to the investment in the ordinary shares of S-TREK (Thailand) Co., Ltd., the investment in the ordinary shares of S-TREK (Thailand) Co., Ltd., capital increase, and the issuance and allocation of the newly issued ordinary shares to the specific person under the private placement basis, and the schedule for 2019 Annual General Meeting of Shareholders...

shown in clause 5)). The Company’s Board of Directors approved to proposed to the Shareholders’ Meeting to consider and authorize the either executive committee or the chief executive officer or other

. Slib Soongswang) Chief Executive Officer Authorized Signatory Attachment 1 (F 53-4) 1/6 Capital Increase Report Form Hydrotek Public Company Limited 21 September 2017 We, Hydrotek Public Company Limited

Directors’ meeting resolved to approve the Board of Directors and/or Chief Executive Officer and/or a person assigned by the Board of Directors and/or Chief Executive Officer to be empowered to consider and

Directors and/or Chief Executive Officer and/or a person assigned by the Board of Directors and/or Chief Executive Officer to be empowered to consider and determine other details in relation to such

knowledge and experience in reviewing the reliability the financial statements of the Company and their experience in auditing financial statements. 9.3 Selection and appointment of directors and chief