agreements of Baht -0.3 million Please be informed accordingly. Sincerely yours, (Ms. Huai Hui, Lee) Chief Operating Officer

accordingly Yours sincerely, (Mr. Chalerm Harnphanich M.D.,Ph.D.) Chief Executive Officer

Chief Executive Officer

) Mr.Pairoj Wattanavarodom Position Director 5) Mr. Somchai warunpantulak Position Director 4. Appointing Mr. Pongsak Sawatyanon to be the Deputy Chief Executive Officer Effective Date on June 14,2018 Please be

under the Rule for Acquisition and Disposition of Assets of Listed Companies. Yours sincerely, -signed- (Mr. Chaiwat Kovavisarach) President and Chief Executive Officer Investor Relations Division Tel. 0

of the Board of Directors. Thus, you have been informed accordingly. Sincerely Yours, - Sign – Mr. Suphot Wanna Chief Executive Officer

Directors. Thus, you have been informed accordingly. Sincerely Yours, - Sign – Mr. Suphot Wanna Chief Executive Officer

sincerely (Mr. Teerawat Srinakarin) Chief Executive Officer

informed for your acknowledgement. Sincerely Yours, (Mr. Suphot Wanna) Chief Executive Officer

same period of last year. Please be informed accordingly. Yours sincerely, (Dr. Ungoon Chantanavich) Chief Executive Officer