employees to support the business expansion, pre-operation expenses as the result from the Group continuing expansion and new project development and expenses related to the bidding of the projects for

derived from employee benefit expenses, which increased according to the increasing in number of employees to support the business expansion, pre-operation expenses as the result from the Group continuing

expenses, which increased according to the increasing in number of employees to support the business expansion, pre-operation expenses as the result from the Group continuing expansion and new project

Notification on the Acquisition and Disposition of Assets. In this regard, the Meeting of the Board of Directors has authorized the Executive Committee of the Company or the Chief Executive Officer, or the

Analysis (MD&A) as attached herewith. Please be informed accordingly. Yours faithfully, For and on behalf of Diamond Building Products Public Company Limited (Mr. Satid Sudbuntad) Chief Executive Officer - 1

herewith. Please be informed accordingly. Yours faithfully, For and on behalf of Diamond Building Products Public Company Limited (Mr. Satid Sudbuntad) Chief Executive Officer - 1 - DIAMOND BUILDING PRODUCTS

. 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

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

; and 2. Debt in the amount of THB 650,000,000. Furthermore, in order to facilitate the implementation of the Project, the Board of Directors’ Meeting has resolved to authorized the Chief Executive

such as chief executive officers, chief financial officers and chief accountants. This is to make sure that they understand their roles, duties and responsibilities from the start, as far as financial