Quarterly Ending March 31, 2018 To : The President The Stock Exchange of Thailand The Board of Directors meeting of Ratchaphruek Hospital Public Company Limited (the Company) No. 2/2018 dated May 10, 2018

Quarterly Ending June 30, 2018 To : The President The Stock Exchange of Thailand The Board of Directors meeting of Ratchaphruek Hospital Public Company Limited (the Company) No. 3/2018 dated August 3, 2018

borrowing from connected person) To The President The Stock Exchange of Thailand As a consequence of the Board of Director’s Meeting No. 14/2018 of J.S.P. Property Public Company Limited, held on November 14

, 2019 To: President of the Stock Exchange of Thailand Seamico Securities Public Company Limited and its subsidiaries (“The Company”) would like to report the consolidated operating result that has been

1 --Translation- Sor Gor 75/2017 July 21, 2017 Subject: Management Discussion and Analysis for the second quarter ended June 30, 2017 (Unaudited) To: The President The Stock Exchange of Thailand

1 --Translation- Sor Gor 85/2017 August 24, 2017 Subject: Management Discussion and Analysis for the second quarter ended June 30, 2017 (Audited) To: The President The Stock Exchange of Thailand

Revenue In FY22, AIS generated total revenue of Bt185,485mn, increasing 2.3%YoY as a result of core service revenue improvement and growth in handset sales benefited from iPhone launching earlier by one

-Translation- Ref. WINNER 018/2020 May 14, 2020 Subject: Management Discussion and Analysis for the 3-month period ending 31 March 2020 To: The President The Stock Exchange of Thailand 1. Analysis of

Association The main raw materials (Pig iron, shredded scrap) the price movement of the main raw materials, i.e. scraps and pig iron, had more fluctuated since the first quarter of 2016, by increasing in the

(Translation) February 27, 2019 Ref: SET-2019-003 Re: Management's Discussion and Analysis and operating results for the Year 2018 Attn. to: President The Stock Exchange of Thailand Filter Vision