Report of the Acquisition or Disposition of Securities (Form 246-2) 2.1 (     ) Acquisition (  ) Disposition (  ) Through the Stock Exchange of Thailand via a securities company

September 3rd,2019 To : Managing Director The Stock Exchange of Thailand Re : The acquisition of investment in Thonburi Healthcare Group PLC. The board of directors of Ramkhamhaeng Hospital Public Co

: President of the Stock Exchange of Thailand Seamico Securities Public Company Limited (“The Company”) would like to report operating result that have been examined by our auditor for the period ended

of the Ministry of Natural Resources and Environment, Securities and Exchange Commission, and Stock Exchange of Thailand, with the pilot period of 2 months from May to June 2020. There were 10

1 - TRANSLATION - KT/PB (Q-Con) 001/2020 February 13, 2020. Attention Managing Director The Stock Exchange of Thailand Subject : Management Discussion and Analysis for year 2019 Quality Construction

1 - TRANSLATION - VS/PC (Q-CON) 026/2018 August 06th , 2018. Attention Director and Managing Director The Stock Exchange of Thailand Subject : Management Discussion and Analysis the second quarter

. 023 / 2019 November 14, 2019 Subject Explanation of the operating performance for 3-month period ended September 30, 2019 To Managing Director The Stock Exchange of Thailand Pan Asia Footwear Public

1 11 February 2020 Subject: Explanation of operating result in the financial statement ended 31 December 2019 To: President of the Stock Exchange of Thailand With reference to the financial statement

recommendation disclosed via the Stock Exchange of Thailand (SET), the independent financial advisor has reaffirmed its advice against the contract transaction.The SEC therefore recommends that the shareholders

consecutive year. However, the company’s securities has selected in the SET High Dividend 30 Index or SETHD from the Stock Exchange of Thailand which the price index reference 30 shares group in the SET100