Exchange of Thailand The Board of Directors’ Meeting of Ladprao General Hospital Public Company Limited (the “Company”), No.4/2020, held on August 14, 2020, has approved the financial statements of the

of Thailand The Board of Director’s meeting No. 1/2021 of General Engineering Public Company Limited (“the Company”) held on March 1, 2021 has approved and verified the financial statements of the

of the meeting relation to the acquisition land and buildings at Chiengrai and paying off with shares of WCI Holding PCL., held by EFORL. To: President The Stock Exchange of Thailand CC: Secretary The

- Translation - Ref. AECS 070/2020 May 14, 2020 Subject: Clarification of Financial Statement Quarter 1/2020 Ended on 31 March 2020 (Reviewed) To: The President The Stock Exchange of Thailand The

Agenda Items for the 2020 Annual General Meeting of Shareholders. To : Director and Manager The Stock Exchange of Thailand Nation Broadcasting Corporation Public Company Limited (the “Company”) would like

October 30, 2020 Subject: The Management Discussion and Analysis for the second quarter ended June 30, 2020 To: President The Stock Exchange of Thailand Well Graded Engineering Public Company Limited (“the

November 13, 2020 Subject: The Management Discussion and Analysis for the third quarter ended September 30, 2020 To: President The Stock Exchange of Thailand Well Graded Engineering Public Company Limited

the 3rd quarter ended 30 September 2019 Attn: Director and Manager, The Stock Exchange of Thailand With respect to the financial information for the 3rd quarter ended 30 September 2019, as submitted by

Page 1 of 2 AC6305/006 May 14, 2020 Subject Clarification of the operating results for the quarter 1/2020 ended March 31, 2020 To Director/ Managing Director The Stock Exchange of Thailand According

prescribes that trust managers must be approved by the Office of the Securities and Exchange Commission and in order to determine the consideration period to be in line with Section 5 of the Securities and