Ref Ref. 2S_BoD001/2019 February 27th, 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

MATI 05/2562 February 27, 2019 Subject Reporting Annual Consolidated Financial Statement which ended at December 31, 2018 To Director and Manager The Stock Exchange of Thailand Operating income of

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 2018 ended December 31

27th February 2019, Management Discussion and Analysis Attention: President of the Stock Exchange of Thailand, Eason Paint Public Company Limited (EASON) reported the Statement of Comprehensive

หน้า 1 จาก 1 Translation May 10, 2019 Subject: Management explanation and analysis for Quarter ended 31 March 2019 Attn: The Managing Director, the Stock Exchange of Thailand Pacific Pipe Public

AC 52/07-003 ACC1/19-019 May 13, 2019 Subject: Management Discussion and Analysis Quarter 1 Ending March 31, 2019 To: Director and Managing Director The Stock Exchange of Thailand Qualitech Public

Ref Ref. 2S_BoD008/2019 May 13th, 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

Quarter 1/2019 To : Director and 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

Manager The Stock Exchange of Thailand The operating performance for three-month period end 31 March 2019 of Mahachai Hospital Public Company Limited compared to the prior year was decreasing in net profit

14th May 2019, Management Discussion and Analysis Attention: President of the Stock Exchange of Thailand, Eason Paint Public Company Limited (EASON) reported the Statement of Comprehensive Income as