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

- English Translations - No. M06/012/2020 February 27, 2020 Subject Clarification of Year/2019 Company Performance To The President of the Stock Exchange of Thailand MDX Public Company Limited (“MDX

-Translation- NO. ED-MD2020-0004 February 24th, 2020 Subject: Clarification of changes in excess of 20% in the operating results for year ended 2017 To: Director and General Manager The Stock

(Translation) IR 003/20 February 28, 2020 President and Director The Stock Exchange of Thailand Subject : To explain the

[Translation] Page 1 of 2 Ref. PDI/BK-BS-044/2017 8 August 2017 To : President The Stock Exchange of Thailand Re. : Resolutions of the Board of Directors’ Meeting, No. 03-2017 The Board of Directors

Manager of The Stock Exchange of Thailand Union Petrochemical Public Company Limited and its subsidiaries would like to describe and analyze the financial situation and business operation for Quarter 2/2017

: Vice President - Listing Department Corporate Disclosure Standards, Stock Exchange of Thailand Attachment: Consolidated Reviewed Financial Statements for the Second Quarter ended 30th June 2017 Jutha

[Translation] Page 1 of 2 Ref. PDI/BK-BS-048/2017 18 August 2017 To : President The Stock Exchange of Thailand Re. : Invest in Short Bill of Exchange in Thai Baht currency with specified the

No. INGRS001 15 September 2017 Re: Explanation about 6-month financial performance of INGRS for the period ended 31 July 2017 To the President of the Stock Exchange of Thailand Ingress Industrial

2017 To: Vice President - Listing Department Corporate Disclosure Standards, Stock Exchange of Thailand Attachment: Consolidated Reviewed Financial Statements for the Third Quarter ended 30th September