หน้า 1 จาก 1 Translation February 19, 2020 Subject: Management explanation and analysis for Year ended 31 December 2019 Attn: The Managing Director, the Stock Exchange of Thailand Pacific Pipe Public

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

Manager of The Stock Exchange of Thailand Union Petrochemical Public Company Limited and its subsidiaries ("the Company") would like to clarify the operating results for the Year 2019 ended December 31

Ref Ref. 2S_BoD001/2020 February 26th, 2020 Subject: Clarification of the change in operating result more than 20% To : The president The Stock Exchange of Thailand 2S Metal Public Company Limited

MATI 03/2563 February 28, 2020 Subject Report on Year End Period Consolidated Financial Statement which ended on December 31, 2019 To Director and Manager The Stock Exchange of Thailand Matichon

Ref. No. 087/2560 12 May 2017 SUBJECT : 1Q/2517 reviewed financial statements and related comments ATTN : The President Stock Exchange of Thailand Attachment : The reviewed financial statements for

Microsoft Word - 3. Financial Position and Operating Performance of Q'1-2017 Our Ref: CEO 016/2017 15 May 2017 Subject Clarification on First Quarter’s Operating Performance (1/2017) Attn. To The

Exchange of Thailand The operating performance for three-month period ended 31 March 2017 of Mahachai Hospital Public Company Limited was highlighted as follow: Company performance for three-month period

5, 2017 Subject: Disposal of investment in associate company To: The President The Stock Exchange of Thailand Aapico Hitech Public Company Limited (“the Company”) wishes to announce that Continental

Exchange Commission (“SEC”), has already registered its dissolution with the Business Development Department, the Ministry of Commerce, on August 31, 2016 and the end of liquidation process on June 27, 2017