November 14, 2017 SET-17-AC-004 Dear The President The Stock Exchange of Thailand Subject: Clarification of Result’s Operation for three months periods ended 30 September 2017 According to the

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

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

set-q1-62 (Translation) Ref.No.LEE 07/2019 May 14, 2019 Subject : Management Discussion and Analysis for the first quarter ended March 31, 2019 To : President of The Stock Exchange of Thailand We

Stock Exchange of Thailand Copy to: The Secretary The Security and Exchange Commission JCK Hospitality Public Company Limited (“Company”) would like to report the consolidated operating performance

-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

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

No. EXE. 009-5-18 14 May 2018 Re: Explanation of Performance of the Financial Statements for the First Quarter 2018 Attention: President The Stock Exchange of Thailand We, Venture Incorporation