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

. Asanee Chantong) Chief Executive Officer - 1 - DIAMOND BUILDING PRODUCTS PUBLIC COMPANY LIMITED AND ITS SUBSIDIARY MANAGEMENT DISCUSSION AND ANALYSIS (For the Consolidated Financial Statements of the 3rd

May Have Conflicts of Interest (Relationship) Type of transaction Transaction value (Baht) Details and rationale 31 Dec 2016 31 Dec 2017 CTG 2002 Co., Ltd. Other payables - 193,518 Advertising expenses