Held Before Acquisition/ Disposition 2 % Group of Held Acquisition/ Disposition 2 % Group of Held After Acquisition/ Disposition 2 Remark 3 File No CIG Mr. Komet Pechanunt Acquisition Stock 1.2007 6.5027

Held Before Acquisition/ Disposition 2 % Group of Held Acquisition/ Disposition 2 % Group of Held After Acquisition/ Disposition 2 Remark 3 File No UBIS Mr. Nant Kitayanutkul Acquisition Stock 54.9932

Acquisition Stock 59.9965 0.0053 60.0018 30/08/2023 59.9965 0.0053 60.0018   246025952309-1 NINE SILOM ROAD LIMITED Disposition Stock 17.5341 2.9568 14.5773 22/08/2022 17.5341 2.9568 14.5773   246020362208-1

measures to tame the volatility. At the same time, Thai stock markets plunged throughout the quarter amid investors’ risk-off sentiment and a slump in oil prices due to disagreement on oil production between

, leading to gross profit increment even with average selling price of ethanol declining from the high domestic ethanol stock. However, when compared to the previous quarter ethanol production and sales

of the SEC Office (if any) and/or the conditions for the Stock Exchange of Thailand’s acceptance of securities (if any), including the compliance with such obligations or conditions in the following

required to sumbmit such attachments to the Stock Exchange of Thailand (SET) as well. - 3 - SEC Classification : ใชภ้ายใน (Internal) Part 1 Business Operation and Operating Results 1. Organizational

., and Schedule for the EGM of Shareholders No. 1/2019 To: The President The Stock Exchange of Thailand Enclosure: 1. Information Memorandum of Hydrotek Public Company Limited on Disposal of Assets and

., and Schedule for the EGM of Shareholders No. 1/2019 (Revised) To: The President The Stock Exchange of Thailand Enclosure: 1. Information Memorandum of Hydrotek Public Company Limited on Disposal of

., and Schedule for the EGM of Shareholders No. 1/2019 (Revised2) To: The President The Stock Exchange of Thailand Enclosure: 1. Information Memorandum of Hydrotek Public Company Limited on Disposal of