No. INGRS059 14 September 2020 Subject : Management Discussion & Analysis (MD&A) for the consolidated financial statements of the 2nd quarter ended 31 July 2020 To : The President The Stock Exchange

submit the report of Management Discussion and Analysis for the year ended 31 December 2020 which has been audited by the auditor this is caused by followings: The Operating results of the company and its

No. INGRS066 30 March 2021 Subject : Management Discussion & Analysis (MD&A) for the consolidated financial statements for the financial year ended 31 January 2021 To : The President The Stock

Analysis Quarterly Ending March 31, 2020 To : The President The Stock Exchange of Thailand The Board of Directors meeting of Ratchaphruek Hospital Public Company Limited (the Company) No. 3/2020 dated May 9

1 Zen Corporation Group Public Company Limited 662 Soi Onnuch 17, Suanluang, Bangkok 10250 THAILAND. Tel: 02-0195000 8 May 2020 No. ZEN 2563-011 Subject Management Discussion and Analysis for the 1st

previous year, the net profit of the Corporate Group for the 1st quarter 2020 increased by 1.56 percent. Details of the changes or impacts are described in the Management Discussion and Analysis (MD&A) as

-9320 1 Ref: PCL 2020/011 May 11, 2020 Subject: Management Discussion and Analysis for the 3-month period ended 31 March 2020 To: The President of the Stock Exchange of Thailand Panjawattana Plastic

9 WATTANAPAT HOSPITAL TRANG PUBLIC COMPANY LIMITED No. WPH – SET 006/2020 13 May 2020 Subject : Management Discussion and Analysis for Quarter 1 of 2020 ending on 31 March 2020. To : Directors and

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1 Zen Corporation Group Public Company Limited 662 Soi Onnuch 17, Suanluang, Bangkok 10250 THAILAND. Tel: 02-0195000 10 August 2020 No. ZEN 2563-016 Subject Management Discussion and Analysis for the