accordingly. Yours faithfully, For and on behalf of Diamond Building Products Public Company Limited (Mr. Satid Sudbuntad) Chief Executive Officer - 1 - DIAMOND BUILDING PRODUCTS PUBLIC COMPANY LIMITED AND ITS

Sudbuntad) Chief Executive Officer Company Secretary Office Tel. +66 3622 4171-8 Ext. 314 Fax. +66 3622 4187 - 1 - DIAMOND BUILDING PRODUCTS PUBLIC COMPANY LIMITED AND ITS SUBSIDIARY MANAGEMENT DISCUSSION AND

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

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 Company Secretary

repayment and source of fund from capital injection by offering new ordinary shares to the existing shareholders and private placement. 2/2 Net Loss The Company posted net loss of Baht 222.30 million in 2017

) Transaction details Company requesting guarantee : Sahapat Real Estate Co., Ltd. Type of business : Property developer Registered capital : Baht 250,000,000.- classified into 10,000,000 ordinary shares, with

agreements of Baht -1.4 million - Proceeds from issue of ordinary shares 52.5 million Please be informed accordingly. Sincerely yours, (Ms. Huai Hui, Lee) Chief Operating Officer

Coverage Ratio (times) -3.59 3.38 Earnings Per Share (EPS) -0.953 0.162 Weighted Average Common Stockholders' Equity (million shares) 1,983.93 1,767.22 Please be informed accordingly. Yours faithfully

(44.66) Interest on margin loans 60.89 4.11 60.89 4.11 Gain and return on financial instruments 172.82 7.55 172.82 7.55 Shares of loss from investments in an associate and a joint venture (19.59) 15.23

-0.9 million - Paid of liability under finance lease agreements of Baht -1.7 million - Proceeds from issue of ordinaries shares of Baht 52.5 million Please be informed accordingly. Sincerely yours, (Ms