February 25, 2019 SET-19-AC-001 Dear The President The Stock Exchange of Thailand Subject: Clarification of Result’s Operation for the year ended 31 December 2018 According to the resolution of BKD’s

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

Translation November 10, 2017 Subject: Management explanation and analysis for Quarter ended 30 September 2017 Attn: The Managing Director, the Stock Exchange of Thailand Pacific Pipe Public Company

-Translation- M06/015/17 November 14, 2017 Subject Clarification of Q3/2017 Company Performance To The President of the Stock Exchange of Thailand Reference MDX Public Company Limited and its

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

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

-English translation- M06/006/19 August 14, 2019 Subject Clarification of Q2/2019 Company Performance To The President of the Stock Exchange of Thailand Reference MDX Public Company Limited and its

August 10, 2018 Subject : Management Discussion and Analysis of Business Operation results for Quarter 2/2018 To : Director and Manager of The Stock Exchange of Thailand U nion Petrochemical Public Company

-Translation- M06/010/18 August 14, 2018. Subject Clarification of Q2/2018 Company Performance To The President of the Stock Exchange of Thailand Reference MDX Public Company Limited and its

Manager The Stock Exchange of Thailand The operating performance for three-month period end 30 June 2018 of Mahachai Hospital Public Company Limited compared to the prior year was decreasing in net profit