February 28,2020 Re: Clarification of the operating results of company and its subsidiaries for the year ended as at December 31, 2019 To: President The Stock Exchange of Thailand K.C. Property

latter decreased in production due to the adjustment stock management to suitable with the decrease in HRC market price worldwide. - Gain on exchange rate was achieved of THB 193 million in Q2-2017, which

Notification of the Office of the Securities and Exchange Commission No. Sor Thor. 35/2557 Re: Rules in Detail on Communication with and Providing Services to Clients of Securities Companies and Derivatives

-1- AIT (VP-SEC) 033E/2020 November 10, 2020 Subject: Management's Discussion and Analysis of Operating Results for Q3–2020 To: The President of The Stock Exchange of Thailand Summary of Operations

1 Ref: AC.021/2018 14 August 2018 Subject: Management discussion and analysis of financial position and operating results To: President and Manager The Stock Exchange of Thailand Overall operating

1 Ref: AC.028/2018 13 November 2018 Subject: Management discussion and analysis of financial position and operating results To: President and Manager The Stock Exchange of Thailand Overall operating

-1- AIT (VP-SEC) 028E/2022 November 10, 2022 Subject: Management's Discussion and Analysis of Operating Results for Q3-2022 To: The President of the Stock Exchange of Thailand Summary of Operations

of Shares of Trans.Ad Solutions Co., Ltd. (Added) Attention: Director and Manager The Stock Exchange of Thailand (SET) The Board of Directors’ meeting of Nation International Edutainment Public Company

the year 2018 To: Director and manager, The Stock Exchange of Thailand Attachment: Management Discussion and Analysis (MD&A) of the year 2018 The Union Textile Industries Public Company Limited

last year. Meanwhile, imports of Hot Rolled Steel decreased by 14% and Domestic Production increased on 11.5% compared to same period last year. The trade war between USA-China, high imports due to