MATI 17/2561 May 14, 2018 Subject Reporting First Quarter Consolidated Financial Statement which ended at March 31, 2018 To Director and Manager, The Stock Exchange of Thailand For three-month period

Thailand The operating performance for three-month period ended 31 March 2018 of Mahachai Hospital Public Company Limited was highlighted as follow: Company performance for three-month period ended 31 March

No. SN.LK 022/2018 August 10, 2018 Subject Management Discussion and Analysis for the 2nd quarter ended June 2018 To The President The Stock Exchange of Thailand Indara Insurance Public Company

August 10, 2018 Subject : Management Discussion and Analysis of Business Operation results for Quarter 2/2018 To : Director and Manager of The Stock Exchange of Thailand U nion Petrochemical Public Company

set-q2-61 (Translation) LEE 10/2018 14 August 2018 Subject : Management Discussion and Analysis for the second quarter ended June 30, 2018 To : President of The Stock Exchange of Thailand We submit

จดหมายชี้แจงq261e August 14, 2018 The Managing Director The Stock Exchange of Thailand Subject : Management Discussion and Analysis for three month Ending 30 June 2018 Summary on Second Quarter

MATI 19/2561 August 14, 2018 Subject Reporting Quarter 2 Consolidated Financial Statement which ended at June 30, 2018 To Director and Manager, The Stock Exchange of Thailand For six-month period

Manager The Stock Exchange of Thailand The operating performance for three-month period end 30 June 2018 of Mahachai Hospital Public Company Limited compared to the prior year was decreasing in net profit

จดหมายชี้แจงq361e November 12, 2018 The Managing Director The Stock Exchange of Thailand Subject : Management Discussion and Analysis for three month Ending 30 September 2018 Summary on Third Quarter

results for Quarter 3/2018 To : Director and Manager of The Stock Exchange of Thailand Union Petrochemical Public Company Limited and its subsidiaries would like to describe and analyze the financial