4_MDA Year2019 EN -Translation- No. ECF2 007/2020 February 28, 2020 Subject: Management Discussion and Analysis of the year 2019 ended December 31, 2019 To President The Stock Exchange of Thailand

ที่________ - Translation - No: SN.056/2017 November 16, 2017 Subject: Clarification of Operating Results and Financial Status for 2017, ended 30 September 2017 Attention: President The Stock

Period (Q1/2019) Attention: Directors and Manager, The Stock Exchange of Thailand N.D. Rubber Public Company Limited (“the Company”) would like to present the MD&A for the Three Month period ended 31 March

30 July 2019 To: The President The Stock Exchange of Thailand Re: Q2-2019 operating results We, Delta Electronics (Thailand) Public Company Ltd, would like to notify the Company’s Q2-2019 (Apr-Jun

Stock Exchange of Thailand Ekachai Medical Care Public Company Limited (the “Company”) would like to clarify on the operating results for the three-month period at the end of 30th September 2018 as

October 28, 2019 To: The President The Stock Exchange of Thailand Re: Q3-2019 operating results We, Delta Electronics (Thailand) Public Company Ltd, would like to notify the Company’s Q3-2019 (Jul

-9320 1 Ref: PLC 2019/011 November 13, 2019 Subject: Management Discussion and Analysis Quarter 3 Ended 30 September 2019 To: The President of the Stock Exchange of Thailand Panjawattana Plastic Public

November 12, 2004 1/3 No: SN. 130/2019 21 November 2019 Subject: Clarification of Operating Results and Financial Position of the year ended September 30, 2019 Attention: President The Stock Exchange

Analysis for the year 2019 (Ending December 31, 2019) (Revise Template) To Director and Manager of the Stock Exchange of Thailand Ubis (Asia) Public Company Limited (“the Company”) would like to clarify on

Management discussion of three-month operating result ending March 31, 2020 To The President of the Stock Exchange of Thailand Matching Maximize Solution Public Company Limited (the Company) would like to