. Huaykwang, Bangkok  10310  F + 66 (2) 6452828,  + 66 (2) 6452829  VAT ID  0107538000151     Thailand W www.wiik‐hoeglund.com    -Translation- LWH/ACC 18/05/LT049 May 11, 2018 Subject: Management discussion

reference. The SEC, Thailand cannot undertake any responsibility for its accuracy, nor be held liable for any loss or damages arising from or related to its use. ---------------------------- Notification of

Notification of the Office of The (Translation) Readers should be aware that only the original Thai text has legal force and that this English translation is strictly for reference. The SEC, Thailand

reference. The SEC, Thailand cannot undertake any responsibility for its accuracy, nor be held liable for any loss or damages arising from or related to its use. ---------------------------- Notification of

-1- AIT (VP-SEC) 014E/2024 May 9, 2024 Subject: Management's Discussion and Analysis of Operating Results for Q1-2024 To: The President of the Stock Exchange of Thailand Summary of Operations Q1-2024

1st Quarter 2017 ended of 31 March 2017 Attention The President The Stock Exchange of Thailand K.C. Metalsheet Public Company Limited (“the Company”) would like to clarify the operating result of the

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 2 / year

Ref.No.1905/026EN July 16, 2019 Subject Inform about The Connected Transaction (Amendment) Attention President of the Stock Exchange of Thailand According to the Board of Directors Meeting No.9/2019

วันที่ 11 กุมภาพันธ์ 2551 Ref: Dimet AC 0819/3 September 6, 2019 Attention: The Directors and The MAI Manager The Stock Exchange of Thailand Subject: Year End result and clarification of the

1 No. CC20171103ELE November 13, 2017 Subject Report of the Resolutions of Board of Directors’ Meeting No. 5/2017 To President The Stock Exchange of Thailand The Board of Directors’ meeting of Cal