-1- AIT (VP-SEC) 016E/2021 August 10, 2021 Subject: Management's Discussion and Analysis of Operating Results for Q2-2021 To: The President of the Stock Exchange of Thailand Summary of Operations Q2

1 25 July 2019 Subject: Notification of the Postponement of the Extraordinary General Meeting of Shareholders No. 1/2019 and the change of the date on which the names of recorded shareholders are

companies under the market capital of THB 30,000 - 100,000 million from SET Awards 2019, organised by the Stock Exchange of Thailand and Money and Banking Magazine. Furthermore, the company remains listed to

-Translated Version- No. ECF2 032/2020 14 August 2020 Subject: Management Discussion and Analysis of the 2nd quarter and 6-month period ended 30 June 2020 To President The Stock Exchange of Thailand

) Attention President The Stock Exchange of Thailand K.C. Metalsheet Public Company Limited (“the Company”) would like to clarify the operating result of the financial statement as follows: year 2016 year 2017

No.012/2018 May 09, 2018 Subject: Report the operating result for the 1st Quarter ended March 31, 2018 and the explanation for the causes of change more than 20% in the Company’s performance To: The

Ref Ref. 2S_BoD017/2019 November 13th, 2019 Subject: Clarification of the change in operating result more than 20% To : The president The Stock Exchange of Thailand The Board of Directors’ meeting of

จดหมายชี้แจงQ160e May 15, 2017 The Managing Director The Stock Exchange of Thailand Subject : Management Discussion and Analysis for three month Ending 31 March 2017 Summary of the 1 st Quarter

No.019/2017 August 11, 2017 Subject: Report the operating result for the 2nd Quarter ended June 30, 2017 and the explanation for the causes of change more than 20% in the Company’s performance To

2017 Attention President The Stock Exchange of Thailand K.C. Metalsheet Public Company Limited (“the Company”) would like to clarify the operating result of the financial statement as follows: Quarter 3