Ref.No.IVL001/08/2019 8th August 2019 President The Stock Exchange of Thailand Subject: Acquisition of Integrated Oxides and Derivatives Businesses/ Assets Enclosure: Information concerning the Acquisition of

-9320 1 Ref: PLC.2020/005 March 9, 2020 Subject : Dividend payment and the connected transaction and schedule of the 2020 Annual General Meeting of Shareholders To : President, The Stock Exchange of

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16 April 2020 Subject: Notification of Acquisition of shares of Trans.Ad Solutions Co.,Ltd. Attention: Director and Manager The Stock Exchange of Thailand (SET) The Board of Directors’ meeting of

of Shares of Trans.Ad Solutions Co., Ltd. (Added) Attention: Director and Manager The Stock Exchange of Thailand (SET) The Board of Directors’ meeting of Nation International Edutainment Public Company

1 --Translation- Sor Gor 75/2017 July 21, 2017 Subject: Management Discussion and Analysis for the second quarter ended June 30, 2017 (Unaudited) To: The President The Stock Exchange of Thailand

1 --Translation- Sor Gor 85/2017 August 24, 2017 Subject: Management Discussion and Analysis for the second quarter ended June 30, 2017 (Audited) To: The President The Stock Exchange of Thailand

1 --Translation-- Sor Gor 106/2017 October 20, 2017 Subject: Management Discussion and Analysis for the third quarter ended September 30, 2017 (Unreviewed) To: The President The Stock Exchange of

1 --Translation-- Sor Gor 113/2017 November 9, 2017 Subject: Management Discussion and Analysis for the third quarter ended September 30, 2017 (Reviewed) To: The President The Stock Exchange of

Procedures for Establishment and Management of Funds dated 10 June 2004, the Office of the Securities and Exchange Commission hereby issues the following regulations: Clause 1. This Notification shall come