Rules, Conditions and Procedures for Filing of Annual Financial Statements and Preparation of Reports of the Stock Exchange of Thailand

Offering for Sale of Certificates Representing Interest from Underlying Securities by the Subsidiary of the Stock Exchange of Thailand

process is to prevent the Company from being bankruptcy and to maintain the right and shareholdership, especially retail investors in the stock market, from losing all the money invested if the Company

. The entering into business rehabilitation process is to prevent the Company from being bankruptcy and to maintain the right and shareholdership, especially retail investors in the stock market, from

December 2019 To : The President The Stock Exchange of Thailand Bangkok Chain Hospital Public Company Limited (the “Company”) would like to report the operating results for year ended 31 December 2019 which

-Translation- Ref. WINNER 006/2020 February 27, 2020 Subject: Management Discussion and Analysis (MD & A) for the year 2019 To: The President The Stock Exchange of Thailand 1. Analysis of Overall

2020 To : The President The Stock Exchange of Thailand Bangkok Chain Hospital Public Company Limited (the “Company”) would like to report the operating results for the first quarter ended 31 March 2020

the year period ended December 31, 2019 To: President The Stock Exchange of Thailand Rich Asia Corporation Public Company Limited ("the Company") would like to report the information according to the

-Translation- Ref. WINNER 006/2020 February 27, 2020 Subject: Management Discussion and Analysis (MD & A) for the year 2019 (Revised) To: The President The Stock Exchange of Thailand 1. Analysis of

August 11, 2022 Subject: Management’s Discussion and Analysis for 2st quarter of 2022 ended as of June 30, 2022 Attention: President The Stock Exchange of Thailand AI Energy Public Company Limited (“the