office buildings and the Machinery purchase agreement with Golden Arrow Coating Co., Ltd. of which Mr. Arkran Termritikulchai and Mr. Pasithphol Termritikulchai who are its Directors and are sons of Mr

with factory building and the Machinery purchase agreement (Additional) Attention President of the Stock Exchange of Thailand According to the Board of Directors Meeting No.10/2020 of UBIS (Asia) Public

. According to the Power Purchase Agreement (“PPA”) with Electricity Generating Authority of Thailand (“EGAT”), which based on the principle that annual Availability Payment (“AP”) will not be lower in year of

production capacity of 31,200 cubic meter per day. The total amount is 113.88 cubic meter, and the required investment for the project is budgeted at 237 million baht. Project Name The minimum purchase amount

to rent space from connected party Ref : Document no. Kor Bor Ror. 016/2018 dated September 19, 2018, regarding transaction to purchase assets from connected party Dear Sir, 1. Inter-transaction of

paid-up capital of GS) And HECH purchase 230,813 new ordinary shares with a par value of Baht 100.00 per share, at a price of Baht 649.88 per share, totaling Baht 150.00 million. Moreover, if GS can

investment for the project is budgeted at 237 million baht. Project Name The minimum purchase amount per day (cubic meter) The total purchase amount (Contract 10 years) (cubic meter) Selling water to

purchase agreement to acquired 34.00% of total issued shares in Duong River Surface Water Plant Joint Stocks Company in Vietnam on 7 August 2019. The total value of transactions is VND 2,073.19 Billion

within the fourth quarter, 2019. Page 2 2. Parties involved and their relationship with the listed company 2.1) Land Purchase Agreement Purchaser Planet Seller In process of negotiation on land purchase

assets payment to all parties involved within the fourth quarter, 2019. Page 2 2. Parties involved and their relationship with the listed company 2.1) Land Purchase Agreement Purchaser Planet Seller In