Limited and its subsidiaries Ref. PDI/BK-BS-022/2020 May 12, 2020 Re: Management Discussion and Analysis (MD&A) For the three-month period ended March 31, 2020 To: President The Stock Exchange of Thailand

Ref. PDI/BK-BS-011/2019 25th February 2019 Re: Management Discussion and Analysis (MD&A) For the year ended December 31, 2018 To: President The Stock Exchange of Thailand Due to depletion of Mae Sod

subsidiaries Ref. PDI/BK-BS-008/2020 20th February 2020 Re: Management Discussion and Analysis (MD&A) For the year ended December 31, 2019 To: President The Stock Exchange of Thailand Padaeng Industry Public

Page 1 of 2 Ref. PDI/BK-BS-43/2017 08 th August 2017 To: President The Stock Exchange of Thailand Re: Clarification on Company’s performance of the 2 nd Quarter and 1 st Half 2017 For the second

Page 1 of 2 Ref. PDI/BK-BS-063/2017 7 th November 2017 To: President The Stock Exchange of Thailand Re: Clarification on Company’s performance of the 3 rd Quarter and 9- month Year to date 2017 For

Ref. PDI/BK-BS-036/2019 10th May 2019 Re: Management Discussion and Analysis (MD&A) For the three-month period ended March 31, 2019 To: President The Stock Exchange of Thailand PDI reassessed its

[Translation] Page 1 of 3 Ref. PDI/BK-BS-049/2019 9 August 2019 To: President The Stock Exchange of Thailand Subject: The notification of the connected transaction and the dissolution of a Subsidiary

Ref. PDI/BK-BS-056/2018 8th August 2018 Re: Management Discussion and Analysis (MD&A) For the 2Q 2018 and 1H 2018 To: President The Stock Exchange of Thailand Due to depletion of Mae Sod Mine’s

Ref. PDI/BK-BS-076/2018 7th November 2018 Re: Management Discussion and Analysis (MD&A) For the three-month and nine-month periods ended September 30, 2018 To: President The Stock Exchange of

-month periods ended June 30, 2020 http://pdi.intranet/SiteDirectory/it/Image%20Gallery/image/logo2013.jpg 1 | Padaeng Industry Public Company Limited and its subsidiaries Ref. PDI/BK-BS-038/2020 August 11