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

1 10000/055/2018 20 June 2018 Subject: Notification of the Investment in OKEA AS To: Directors and Manager The Stock Exchange of Thailand Bangchak Corporation Public Company Limited (the “Company

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

which are not listed on the stock exchange or derivatives exchange https://publish.sec.or.th/nrs/6409pe.doc นโยบายการรักษาความปลอดภัยด้านเทคโนโลยีสารสนเทศ (IT security policy) ] 2. การควบคุมการพัฒนา หรือ

Economic Crime Suppression Division (ECSD) on the ground of performing duties dishonestly when he failed to disclose IFEC default on its bills of exchange. In addition, the SEC has instructed IFEC directors

Bangkok, March 10, 2014 ? The SEC jointly with the Association of Investment Management Companies (AIMC), the Stock Exchange of Thailand (SET), the Thai Bankers? Association (TBA), the Association of

internal unit of the securities company, such internal unit must be independent from the computer division of the company. Clause 4. The securities company shall separate the division and personnel

case of inspection by an internal unit of the securities company, such internal unit must be independent from the computer division of the company. Clause 4. The securities company shall separate the