Office of the Securities and Exchange Commission No. SorThor/Nor/Yor/Khor. 3/2550 Re: Rules, Conditions and Procedures for Establishment of Risk Management System to Prevent the Use of Securities Business

Commission Notification of the Office of the Securities and Exchange Commission No. SorThor/Nor/Yor/Khor. 3/2550 Re: Rules, Conditions and Procedures for Establishment of Risk Management System to Prevent the

Section 7 and the fourth paragraph of Section 90 of the Securities and Exchange Act B.E. 2535 which contains certain provision relating to the restriction of rights and liberties of persons which Section 29

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

February 28, 2020 Ref: SET-2020-003 Re: Management Discussion and Analysis for the year 2019 Attn. to: President The Stock Exchange of Thailand Filter Vision Public Company Limited and its

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

put in place a system for prevention of conflicts of interest under the Notification of the Office of the Securities and Exchange Commission governing providing of work systems for proprietary

securities underwriter has put in place a system for prevention of conflicts of interest under the Notification of the Office of the Securities and Exchange Commission governing providing of work systems for

system for prevention of conflicts of interest under the Notification of the Office of the Securities and Exchange Commission governing providing of work systems for proprietary securities investment