YONG THAI PUBLIC COMPANY LIMITED 633/14 Sathupradit Road, Yannawa, Bangkok 10120 Thailand Tel. (662) 2943364-8, Fax : (662) 2943373 YTC 16/2018 May 15, 2018 To : The President The Stock Exchange of

หนา้1/2 (Translation) Ref. JCKH 014/2561 May 15, 2018 Subject: Management Discussion and Analysis for the Quarter 1/2018 To: The President The Stock Exchange of Thailand CC: The Secretary General The

1 28 May 2018 Subject: Explanation of operating result in the financial statement for the year ended 31 March 2018 To: President The Stock Exchange of Thailand With reference to the financial

Manager The Stock Exchange of Thailand According to the resolution of the meeting of the Board of Directors No.4/2018 of Wattanapat Hospital Trang Public Company Limited (“the Company”) held on 7 August

51-E 1/2 RC 51/18 8 August 2018 Subject : Report on the Company’s operating results for the second quarter of the year 2018 Attention : President of the Stock Exchange of Thailand The Board of

-4124 MMS-AC61/020 August 8, 2018 Subject: Clarification of the operating results for the second quarter of 2018, ending June 30, 2018 To: The President of the Stock Exchange of Thailand Matching Maximize

November 28, 2005 No. 8 /2018 August 9, 2018 President The Stock Exchange of Thailand 93 Ratchadapisek Road, Kwang Dindaeng, Khet Dindaeng, Bangkok 10400 Subject : Clarification of the operating

9 August, 2018 Re Explanation and analysis of the Management for the 2nd. quarter of 2018 ended 30 June 2018 To Director and Manager, Stock Exchange of Thailand Whereas the Meeting No. 4/2561 of the

9.9% compared to total shareholders’ equity as at 31 December 2017, mainly from Bt239.95mn of dividend payment, Bt187.02mn of treasury stock, and Bt294.58mn of net profit in 2018. Key Financial Ratio

August 9, 2018 Subject : Management Discussion and Analysis for six-month and 2nd quarter ended June 30, 2018 Attention : President The Stock Exchange of Thailand 1. Operating Performance . Revenues