1 27 May 2019 Subject: Explanation of operating result in the financial statement ended 31 March 2019 To: President of the Stock Exchange of Thailand With reference to the financial statement of FY

ACC1/20-012 February 25, 2020 Subject: Management Discussion and Analysis for the year ended December 31, 2019 To: Director and Managing Director The Stock Exchange of Thailand Qualitech Public

AC 52/07-003 ACC1/19-042 August 13, 2019 Subject: Management Discussion and Analysis Quarter 2 Ending June 30, 2019 To: Director and Managing Director The Stock Exchange of Thailand Qualitech Public

หน้า 1 จาก 1 Translation August 13, 2019 Subject: Management explanation and analysis for Quarter ended 30 June 2019 Attn: The Managing Director, the Stock Exchange of Thailand Pacific Pipe Public

Ref Ref. 2S_BoD013/2019 August 14, 2019 Subject: Clarification of the change in operating result more than 20% To : The president The Stock Exchange of Thailand 2S Metal Public Company Limited (the

Manager The Stock Exchange of Thailand The operating performance for three-month period end 30 June 2019 of Mahachai Hospital Public Company Limited compared to the prior year was decreasing in net profit

S&P MD&A Q2_2019-Eng Ref. POL. 085/2019 August 8th 2019 Re: Clarification of the Performance of S & P Syndicate Public Company Limited Dear The President The Stock Exchange of Thailand S & P

Quarter of 2019 Dear The Director and Manager of the Stock Exchange of Thailand, Rayong Wire Industries Plc. as (COMPANY) would like to describe and analyze the financial position and business operation of

February 18, 2020 Re: Management Discussion and Analysis for full year 2019 To: Director and Manager of the Stock Exchange of Thailand Revenue from sales and rendering of services L&E’s consolidated

MATI 09/2562 May 15, 2019 Subject Report on First Quarter Consolidated Financial Statement which ended on March 31, 2019 To Director and Manager, The Stock Exchange of Thailand Matichon Public Co