relating to assets or services. The total value is 2,399,982 Baht, when calculating the amount according to the notification of the Securities and Exchange Commission (BorJor/Por 22-01), and The Stock

1 -Translation- Ref :IR 62/023 December 23, 2019 Subject: Change in Shareholding Structure of Subsidiary Company (edit no.2 ) To: President, The Stock Exchange of Thailand T.K.S. Technologies Public

Price (Bht./Ton) 18,529 16,348 HRC Cash Margin (Bht./Ton) 1,848 2,427 Unit: million Baht 2017 2016 Gr ou p Total Assets 32,437 32,615 Total Liabilities 20,059 21,747 Total Equity 1,364 10,868 Average

1,336 HRC Average Selling Price (Bht./Ton) 18,529 16,348 HRC Cash Margin (Bht./Ton) 1,848 2,427 Unit: million Baht 2017 2016 Gr ou p Total Assets 32,172 32,615 Total Liabilities 19,781 21,747 Total Equity

BOD Resolution Ref U. SET 008/2018 14 February 2018 Subject: Summary of Operating Performance and Financial Status for Quarter 4/2017 and for the Year Ended 31 December 2017 To: President The Stock

-1 -Translation- Ref. LPN/SorKor/146/2562 9th May 2019 Re: Financial Statements Analysis Report Q1/2019 Dear: President The Stock Exchange of Thailand L.P.N. Development Public Co.,Ltd. would like to

-1 - Translation - Ref. LPN/SorKor/217/2562 7th August 2019 Re: Consolidated Financial Statements Analysis Q2/2019 Dear: President The Stock Exchange of Thailand L.P.N. Development Public Co., Ltd

วันที่ 10 พฤษภาคม พ -Translation- 1 Ref. LPN/SorKor/208/2561 9th August 2018 Re: Consolidated Financial Statements Analysis Q2/2018 Dear: President The Stock Exchange of Thailand L.P.N. Development

Management Discussion and Analysis 1 Ref: AC.017/2020 18 May 2020 Subject: Management discussion and analysis of financial position and operating results To: President and Manager The Stock Exchange

1 (Translation) AT JSP/61/02/02 February 6, 2018 Subject The disposal of investment of joint venture (Revise) To The President The Stock Exchange of Thailand The Board of Director’s Meeting No.1/2018