Limited Ref: IR61/012 14 May 2018 Subject: Management Discussion and Analysis Quarter 1/2018 Ending 31 Mar 2018 To: President The Stock Exchange of Thailand Overview and factors affecting the future

Limited Ref: IR61/012 11 May 2018 Subject: Management Discussion and Analysis Quarter 1/2018 Ending 31 Mar 2018 To: President The Stock Exchange of Thailand Overview and factors affecting the future

offering of warrant to purchase ordinary shares of the Company to existing shareholders and joint ventures in subsidiary. (Edited) To: The President The Stock Exchange of Thailand Enclosure 1. Capital

Ref.No.1905/026EN July 16, 2019 Subject Inform about The Connected Transaction (Amendment) Attention President of the Stock Exchange of Thailand According to the Board of Directors Meeting No.9/2019

Managing Director of Accounting and Finance, and the disposition of land of the Company’s subsidiary To President The Stock Exchange of Thailand K.C. Property Public Company Limited (the “Company”) would

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

1 No. CC20171103ELE November 13, 2017 Subject Report of the Resolutions of Board of Directors’ Meeting No. 5/2017 To President The Stock Exchange of Thailand The Board of Directors’ meeting of Cal

compensation for design and construction to related person. To: Managing Director The Stock Exchange of Thailand Reference: 1. Capital Increase Report Form (F53-4) 2. Report of Information Memorandum on the

Carnival Magic Project, and compensation for design and construction to related person. (Update) To: Managing Director The Stock Exchange of Thailand Reference: 1. Capital Increase Report Form (F53-4) 2

) To: President The Stock Exchange of Thailand Enclosure: Information Memorandum on the Asset Disposal, Schedule 1 of Rich Asia Corporation Public Company Limited Reference to the Board of Directors