31 December 2017. The Company needs to use such financial statements in support of the evaluation of the fair value of S-TREK shares and has determined the result of the special audit in satisfaction

of S-TREK, ended 31 December 2017. The Company needs to use such financial statements in support of the evaluation of the fair value of S-TREK shares and has determined the result of the special audit

License No. Position Educational Qualification Experience in Auditing (years) 1. 2. 3. 4. (Additional details can be submitted as attachments) Details of assistant auditors who assist the audit engagement

Last names CPA License No. Position Educational Qualification Experience in Auditing (years) 1. 2. 3. 4. (Additional details can be submitted as attachments) Details of assistant auditors who assist the

Imports of Alloy Steel and Galvanized HRC into Thailand due to strengthening of Thai Baht and removal of Safeguard duties on Alloy Steel in February 2019. The total shipment volume dropped by 40% and

shipment volumes dropped by 33%, the selling prices dropped by 13% The Company reported sale revenue of Baht 4,494 million which is an increase by Baht 4,438 million compared to Last Year since the Company

No. ECF2 044/2561 3 December 2018 Subject: Notification of the resolutions of the Board of Directors’ Meeting approving the investment in purchasing the ordinary shares of S-TREK (Thailand) Co., Ltd., capital increase, and the issuance and allocation of the newly issued ordinary shares to the specific person under the private placement basis, and the schedule for Extraordinary General Meeting No. 1/2019 (Additional) To President The Stock Exchange of Thailand Enclosure 1. Information Memorandum...

-Translation- No. ECF2 005/2019 17 January 2019 Subject: Cancellation of the resolutions of the Board of Directors’ Meeting No. 13/2018 in relation to the investment in the ordinary shares of S-TREK (Thailand) Co., Ltd., the investment in the ordinary shares of S-TREK (Thailand) Co., Ltd., capital increase, and the issuance and allocation of the newly issued ordinary shares to the specific person under the private placement basis, and the schedule for 2019 Annual General Meeting of Shareholders...

-Translation- No. ECF2 044/2561 3 December 2018 Subject: Notification of the resolutions of the Board of Directors’ Meeting approving the investment in purchasing the ordinary shares of S-TREK (Thailand) Co., Ltd., capital increase, and the issuance and allocation of the newly issued ordinary shares to the specific person under the private placement basis, and the schedule for Extraordinary General Meeting No. 1/2019 To President The Stock Exchange of Thailand Enclosure 1. Information Memorandum...

1 25 May 2020 Subject: Notification on Resolution of the Board of Directors’ Meeting No. 5/2020, Change of Directors and Directors’ Power, Entering into Connected Transaction, Entering into Transaction on Acquisition of Assets and Determination of the 2020 Annual General Meeting of Shareholders To: Director and Manager The Stock Exchange of Thailand Enclosure 1. Information Memorandum on the Acquisition of Assets (Schedule 1) and the Entry into Connected Transaction of Nation Broadcasting Corpor...