Management Name : Mr WIRAT SUKCHAI | Type of securities : Common share | Methods of Acquisition / Disposition : Buy | Transaction Date : 13/12/2017

) Kobsak Duangdee, Secretary General of the Thai Bankers' Association, (3) Wirat Sukchai, President of the MAI Listed Companies Association, (4) Kamolsit Wongbutnoi, Assistant Secretary-General of the Anti

. Sincerely yours, ……………………………………. (Mr. Wirat Sukchai) Managing Director

expenses for new business units: the refrigeration systems and the digital printing systems that the Company had received from the entire business transfer. Sincerely yours, ……………………… (Mr.Wirat Sukchai

Reporter Common Share 29/06/2022 1,000,000 2.18 Purchase Link HARN ENGINEERING SOLUTIONS PUBLIC COMPANY LIMITED (HARN) Mr. WIRAT SUKCHAI Reporter Common Share 16/03/2021 2,000,000 2.28 Sale Link HARN

the board of directors. - None - Please be informed accordingly. Yours sincerely, (Mr.Wirat Sukchai) Chief Executive Officer Authorized Signatory of Information Memorandum Company Secretary Tel. 02-203

1,000,000 2.18 Purchase Link HARN ENGINEERING SOLUTIONS PUBLIC COMPANY LIMITED (HARN) Mr. WIRAT SUKCHAI Reporter Common Share 16/03/2021 2,000,000 2.28 Sale Link HARN ENGINEERING SOLUTIONS PUBLIC COMPANY