1 Ref: AC.021/2018 14 August 2018 Subject: Management discussion and analysis of financial position and operating results To: President and Manager The Stock Exchange of Thailand Overall operating

1 Ref: AC.028/2018 13 November 2018 Subject: Management discussion and analysis of financial position and operating results To: President and Manager The Stock Exchange of Thailand Overall operating

661 6664-5 www.indoramaventures.com Ref. No. 003/01/2019 15th January 2019 Subject: Information Memorandum on a Connected Transaction and Open Offer of Shares in Indo Rama Synthetics (India) Ltd. To

ที่บชง Page 1 of 5 Ref. Bor Chor Ngor 0413/2019 12 November 2019 Subject: Management Discussion and Analysis for the Third Quarter ended 30 September 2019 To President The Stock Exchange of Thailand

-1 1 Ref. LPN/SorKor/053/2563 13rd February 2020 RE: Financial Statements Analysis Report 2019 Dear: President The Stock Exchange of Thailand L.P.N. Development Public Co., Ltd. would like to submit

-1 1 Ref. LPN/SorKor/119/2563 7th May 2020 Re: Financial Statements Analysis Report Q1/2020 Dear: President The Stock Exchange of Thailand L.P.N. Development Public Co.,Ltd. would like to submit the

-Translation- Ref. WINNER 018/2020 May 14, 2020 Subject: Management Discussion and Analysis for the 3-month period ending 31 March 2020 To: The President The Stock Exchange of Thailand 1. Analysis of

-1 1 Ref. LPN/SorKor/098/2564 6th May 2021 Re: Financial Statements Analysis Report Q1/2021 Dear: President The Stock Exchange of Thailand L.P.N. Development Public Co.,Ltd. would like to submit the

-9320 1 Ref: PLC.2020/005 March 9, 2020 Subject : Dividend payment and the connected transaction and schedule of the 2020 Annual General Meeting of Shareholders To : President, The Stock Exchange of

to the Notification of Capital Market Supervisory Board Ref. No. TorJor. 20/2551 Subject : Rules for entering into Material Transaction Deemed as Acquisition or Disposal of Assets. From calculation the