Page 1 of 2 Ref. PDI/BK-BS-41/2018 11 th May 2018 To: President The Stock Exchange of Thailand Re: Clarification on Company’s performance of the 1 st Quarter 2018 For the first quarter of 2018

Page 1 of 2 Ref. PDI/BK-BS-012/2018 23 rd February 2018 To: President The Stock Exchange of Thailand Re: Clarification on Company’s performance of the 4th Quarter and Full Year 2017 For the forth

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