determination of record date and the date of 2020 Annual General Meeting of Shareholders) To: President The Stock Exchange of Thailand Attachment: 1. Financial assistance to KT Medical Service Company Limited 2

to create scenarios and conduct training sessions focused on both technical and strategic responses to cyber threats. The program was divided into two stages: hands-on technical simulated training lab

-Translation- Ref. No. PorBor.027 / 2019 September 11, 2019 Subject: Entering into Transaction of Disposing of Subsidiary’s ordinary shares To: President The Stock Exchange of Thailand Enclosure

Exchange of Thailand Enclosure Capital Increase Form (F 53-4) (amended) Following Hydrotek Public Company Limited (the “Company”)’s Board of Directors’ Meeting No. 10/2017 held on October 19, 2017 at 5.00 pm

December 12, 2018 Subject : Acquisition of 84.50% shares of WPS (Thailand) Co., Ltd. Attention : Director and Manager Stock Exchange of Thailand Enclosure : 1. Memorandum of the Acquisition of Asset

President of the Stock Exchange of Thailand Attachment: Management Discussion and Analysis ended 30 June 2017 As the Golden Lime Public Company Limited (“the Company”) has submitted the interim financial

: 0107556000248 No. (SUTHA-SET) 030/2017/Eng 10 November 2017 Subject: Management Discussion and Analysis for period ended 30 September 2017 To: The President of the Stock Exchange of Thailand Attachment

transaction appears in the attachment 1). Please be informed accordingly. Yours sincerely, (Ms.Vilai Siripoonkiatikul) Authorized Signature attachment 1 Information Memorandum of Unimit Engineering Company

Stock Exchange of Thailand Attachment: Management Discussion and Analysis ended 31 March 2020 As Golden Lime Public Company Limited (“the Company”) and its subsidiaries have submitted the Interim

joined and assigned their executives and representatives to attend financial literacy training courses. The trainees then become the trainers working on knowledge transfer, activities or clinic within