Chief Executive Officer Authorized Signatory (Translation) — 1 — Enclosure 1 Summary of Adjustment of the Exercise Ratio by adjusting Number of ORI-W1 Reference is made to the issuance of 406,573,990

Sudbuntad) 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 Quarter

, WIIK & HOEGLUND PUBLIC CO., LTD. Mr. Wiboon Sangwithayanon Chief Executive Officer

impairment loss in debt securities which Innotech invested in WCI Holding Co., Ltd. of Baht 105.00 million. Please kindly be informed accordingly. Yours sincerely, (Mr. Chaipatr Srivisarvacha) Chief Executive

the shareholders’ meeting. The company hereby reports to the SET accordingly. Sincerely yours, Boondee Amnuayskul (Mr.Boondee Amnuayskul) Chief Executive Officer and Managing Director

. Faithfully yours, Boondee Amnuayskul (Mr. Boondee Amnuayskul) Chief Executive Officer and Managing Director

acknowledgement. Sincerely Yours, - Singed – (Mr. Suphot Wanna) Chief Executive Officer Investor Relation Department JAS Asset Public Company Limited

. Yours sincerely, (Assoc.Prof. Chalerm Harnphanich M.D., Hon.D.) Chief Executive Officer Revenue Structure Q3/2018 Q3/2017 Difference Cash-Base Revenue (Walk-In) 820.9 577.1 243.8 42.2% Social Security

% respectively. Yours sincerely, (Mr. Chuangchai Nawongs) Chief Executive Officer and President

in group of companies. Please be informed accordingly Sincerely yours, (Mr. Suriya Poolvoralaks) Executive Director and Managing Director http://www.majordevelopment.co.th/popup_bod01.php?id=11&ids=60