1 Zen Corporation Group Public Company Limited 662 Soi Onnuch 17, Suanluang, Bangkok 10250 THAILAND. Tel: 02-0195000 6 May 2021 No. ZEN 2564-009 Subject Management Discussion and Analysis for the 1st

of Jan - Dec 2019 = 2,706.44 million Baht Revenue of Jan - Dec 2019 = 4,680.08 million Baht EASTERN WATER RESOURCES DEVELOPMENT AND MANAGEMENT PUBLIC COMPANY LIMITED MANAGEMENT DISCUSSION AND ANALYSIS

MD&A Q3Y2019 (E) - 11.11.19 RATCH Group Public Company Limited Management Discussion and Analysis For the Three-month and Nine-month Periods Ended 30 September, 2019 Management Discussion and

submit the report of Management Discussion and Analysis for the year ended 31 December 2017 which has been audited by the auditor this is caused by followings: The Operating results of the company and its

than 20% from the last year as follows: Statement of Comprehensive Income Unit: Million Baht 30 September 2017 30 September 2016 Increased (Decreased) Percentage Remark Sales and Services Income 485.79

ended 31 December 2017, which net profit has changed more than 20% from the last year as follows: Statement of Comprehensive Income Unit: Million Baht 31 December 2017 31 December 2016 Increased

No. CAZ 007/2019 15 May 2019 Subject: Management Discussion and Analysis 1st Quarter ended 31 March 2019 Attention: The President The Stock Exchange of Thailand CAZ (Thailand) Public Company Limited

follows: Statements of Comprehensive Income for the 2nd Quarter Ended June 30, 2019 Revenue from Hospital Operations Revenue from hospital operations in the second quarter of 2019 (“2Q’19”) was THB 422.77

March 2018, which net profit has changed more than 20% from the last year as follows: Statement of Comprehensive Income Unit: Million Baht 31 March 2018 31 March 2017 Increased (Decreased) Percentage

ended 30 September 2018, which net profit has changed more than 20% from the last year as follows: Statement of Comprehensive Income Unit: Million Baht 30 September 2018 30 September 2017 Increased