Chief Executive Officer Authorized Signatory (Translation) — 1 — Enclosure 1 The amended contents are written and underlined in blue. Summary of Adjustment of the Exercise Ratio by adjusting Number of ORI

line with the increase in profit before income tax. Please be informed accordingly. Yours sincerely, (Assoc.Prof. Chalerm Harnphanich M.D., Hon.D.) Chief Executive Officer Revenue Structure Q3/2018 Q3

accordingly. Sincerely yours, Mrs. Teerada Ambhanwong Mrs. Teerada Ambhanwong Managing Director Chief Executive Officer

significantly different from those by The Board of Directors : - None - The company hereby reports to the SET accordingly. Faithfully yours, Boondee Amnuayskul (Mr. Boondee Amnuayskul) Chief Executive Officer and

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

sincerely, Mr. Songwut Sakchalathorn Chief Executive Officer

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

increase in loan outstanding used to finance the projects under construction. Please be informed accordingly. Yours sincerely, (Assoc.Prof.Dr.Chalerm Harnphanich, M.D.) Chief Executive Officer

Company Limited (Mr. Chuangchai Nawongs) Chief Executive Officer and President

) Director/Acting Chief Executive Officer