directors of Ramkhamhaeng Hospital Public Co.,Ltd. held on April 25 th , 2018 passed the following resolution concerning the acquisition of Buriram Ruampaet Co.,Ltd..s share in the amount of 2,751,655 shares

Quarterly Ending March 31, 2018 To : The President The Stock Exchange of Thailand The Board of Directors meeting of Ratchaphruek Hospital Public Company Limited (the Company) No. 2/2018 dated May 10, 2018

% Respectfully Yours, (Mr. Charoen Rujirasopon, Mr. Jarunpoj Rujirasopon) Authorized Directors

of Thailand The Board of Directors meeting of KGI Securities (Thailand) Plc (“the Company”), No.1/2019, held on 20th February 2019, approved the audited financial statements, including the consolidated

and Analysis for Year Ending December 31, 2018 To : The President The Stock Exchange of Thailand The Board of Directors meeting of Ratchaphruek Hospital Public Company Limited (the Company) No. 1/2019

Attention: Directors and Manager, The Stock Exchange of Thailand N.D. Rubber Public Company Limited (“the Company”) would like to present the MD&A for the Three Month period ended 31 December 2018 (4th

(Revised 1) Attention: Directors and Manager, The Stock Exchange of Thailand N.D. Rubber Public Company Limited (“the Company”) would like to present the MD&A for the Three Month period ended 31 December

. Subsequently, on November 6, 2018, the Board of Directors of the Company had resolved the resolution to the Company that it shall cease metals trading business at the end of the first quarter of 2019. PDI

, (Mr. Charoen Rujirasopon, Mrs. Niramon Rujirasopon) Authorized Directors

26 February 2019 Subject: Management Discussion and Analysis for the Year Ended December 31, 2018 To: Directors and Managers The Stock Exchange of Thailand Halcyon Technology Public Company Limited