previous Quarterly To: The President The Stock Exchange of Thailand As a result of the global economic slowdown, trade and economic negotiations and in Thailand have continued to slow down to wait for

ADMS 30/07 1/2 RC 23/19 6 August 2019 Subject : Report on the Company’s operating results for the second quarter of the year 2019 Attention : President of the Stock Exchange of Thailand The Board of

7 August 2019 Subject: Management Discussion and Analysis for the Quarter 2 Ending 30 June 2019 Attention: President Stock Exchange of Thailand Please find below the additional information supporting

previous Quarterly To: The President The Stock Exchange of Thailand As a result of the trade war, both the United States and China have pulled the world economy down sharply and may cause a recession in the

August 14, 2019 Subject : Management Discussion and Analysis for Six-month and 2nd quarter ended June 30, 2019 Attention : President The Stock Exchange of Thailand 1. Operating Performance 1.1

: BC.017/2018 May 11, 2018 Subject Interim Management’s Discussion and Analysis for the three months ended March 31, 2018 To The President The Stock Exchange of Thailand Management Discussion and

November 13, 2006 May 15, 2018 Subjects : Clarification of operating results for the Q1/2018 Attention : The Director and Manager of the Stock Exchange of Thailand The Consolidated net profit of

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

2017. To : The director of the Stock Exchange of Thailand Ramkhamhaeng Hospital Public Company Limited would like to clarify the operation results, as follows: 1. Ramkhamhaeng Hospital Public Company

1/2 RC 57/18 6 November 2018 Subject : Report on the Company’s operating results for the third quart er of the year 2018 Attention : President of the Stock Exchange of Thailand The Board of Directors