-1- AIT (VP-SEC) 013E/2018 May 8, 2018 Subject: Management's Discussion and Analysis of Operating Results for Q1-2018 To: The President of The Stock Exchange of Thailand Summary of Operations Q3

-1 -Translation- Ref. LPN/SorKor/053/2562 14th February 2019 RE: Financial Statements Analysis Report 2018 Dear: President The Stock Exchange of Thailand L.P.N. Development Public Co., Ltd. would

Ref. AU 009/2017 - Translation - 15 May 2017 To: Director and the President The Stock Exchange of Thailand Management Discussion and Analysis for the three-month period ended 31 March 2017 After You

-1- AIT (AVP-SEC) 023E/2017 10 August, 2017 Subject: Management's Discussion and Analysis of Operating Results for Q2-2017 To: The President of The Stock Exchange of Thailand Summary of Operations Q2

Ref. AU 011/2017 - Translation - 11 August 2017 To: Director and the President The Stock Exchange of Thailand Management Discussion and Analysis for the six-month period ended 30 June 2017 After You

-1- AIT (VP-SEC) 026E/2017 7 November, 2017 Subject: Management's Discussion and Analysis of Operating Results for Q3-2017 To: The President of The Stock Exchange of Thailand Summary of Operations Q3

วันที่ 10 พฤษภาคม พ -Translation- 1 Ref. LPN/Sor.Kor./277/2560 9th November, 2017 Re: Report on Financial Analysis in Q3/2017 Dear: President The Stock Exchange of Thailand L.P.N. Development Public

วันที่ 10 พฤษภาคม พ -Translation- 1 Ref. LPN/SorKor/025/2561 14th February, 2018 Re: Report of Financial Statement for Year 2017 Dear: President The Stock Exchange of Thailand L.P.N. Development

-1- AIT (VP-SEC) 016E/2019 May 7, 2019 Subject: Management's Discussion and Analysis of Operating Results for Q1-2019 To: The President of The Stock Exchange of Thailand Summary of Operations Q1

- 1 - AIT (VP-SEC) 024E/2019 August 8, 2019 Subject: Management's Discussion and Analysis of Operating Results for Q2-2019 To: The President of The Stock Exchange of Thailand Summary of Operations Q2