., and Schedule for the EGM of Shareholders No. 1/2019 (Revised3) To: The President The Stock Exchange of Thailand Enclosure: 1. Information Memorandum of Hydrotek Public Company Limited on Disposal of

approving 535,436, Company amendme registered 4, 2019 Notificatio of the Da Capital by Director a The Stock re 1. Capita 2. Inform Existin As Nation s’ Meeting No d the significa 1. Resolv g the decreas

(Translation) OOrriiggiinn PPrrooppeerrttyy PPuubblliicc CCoommppaannyy LLiimmiitteedd 496, Moo 9, Samrong Nuea Subdistrict, Mueang Samut Prakan District Samut Prakan Province 10270 The amendment

. Jirawud Kuvanant Acquisition Stock 39.5696 1.5301 41.0997 19/12/2019 39.5696 1.5301 41.0997   246002852003-1 B52 นาย ทวี โฆษิตจิรนันท์ Acquisition Stock 0 6.327 6.327 17/05/2019 0 6.327 6.327   2562-0201

Before Acquisition/ Disposition 2 % Group of Held Acquisition/ Disposition 2 % Group of Held After Acquisition/ Disposition 2 Remark 3 File No YCI Mr. Chirasak Chiyachantana Acquisition Stock 3.9546 6.3174

Acquisition Stock 9.069 1.5927 10.6618 27/06/2022 9.069 1.5927 10.6618   246019312206-1 GLOCON Mr. Pasu Wachirapong Acquisition Stock 4.7458 1.0076 5.7534 21/06/2022 4.7458 1.0076 5.7534   246019142206-1 GLOCON

Held Before Acquisition/ Disposition 2 % Group of Held Acquisition/ Disposition 2 % Group of Held After Acquisition/ Disposition 2 Remark 3 File No 7UP Miss Chomkamol Poompanmoung Acquisition Stock

Held Before Acquisition/ Disposition 2 % Group of Held Acquisition/ Disposition 2 % Group of Held After Acquisition/ Disposition 2 Remark 3 File No NCL Miss Montira Charoenwal Disposition Stock 5.9915

Held Before Acquisition/ Disposition 2 % Group of Held Acquisition/ Disposition 2 % Group of Held After Acquisition/ Disposition 2 Remark 3 File No ICN Mr. Sompong Chonecadeedumrongkul Acquisition Stock

. Suthipot Ariyasuthivong Disposition Stock 6.0215 2.1428 3.8787 09/08/2021 6.0215 2.1428 3.8787   246012502108-1 OTO Mr. Suthipot Ariyasuthivong Disposition Stock 10.3072 0.7142 9.593 01/06/2021 10.3072