Ref. DBP. 111 / 2020 August 10, 2020 Subject : Clarification on Operating Results for the 2nd quarter and 6-month period ending June 30, 2020 To : President The Stock Exchange of Thailand Diamond

lower stock loss. As aforementioned, the company realized net profit of THB 22 million, a decrease of 66% compare to 1Q2018. As of 31 March 2019, the company has total assets in the amount of THB 12,799

Assets and Connected Transaction for the Entire Business Transfer and Allocation of Securities to the Specific Investor (Private Placement) To The President The Stock Exchange of Thailand Attachment 1

/2551 Re: Rules on Entering into Material Transactions Deemed as Acquisition or Disposition of Assets and the Notification of the Board of Governors of the Stock Exchange of Thailand re: Disclosure of

(Translation) Page 1 of 2 No. CBG 053/2017 14 November 2017 Re: Board resolution and change of overseas subsidiaries’ capital structure To Managing Director Stock Exchange of Thailand Reference is

and Allocation of Securities to the Specific Investor (Private Placement) (Amendment 2) To The President The Stock Exchange of Thailand Attachment 1. Information Memorandum regarding the Acquisition of

Allocation of Securities to the Specific Investor (Private Placement) (Amendment 3) To The President The Stock Exchange of Thailand Attachment 1. Information Memorandum regarding the Acquisition of Assets and

December 12, 2018 Subject : Acquisition of 84.50% shares of WPS (Thailand) Co., Ltd. Attention : Director and Manager Stock Exchange of Thailand Enclosure : 1. Memorandum of the Acquisition of Asset

Stock Exchange of Thailand Reference: Letter No. OP. 435/ 2019 dated 12 December 2019 on the entering into the Conditional Share Purchase Agreement for the acquisition of a majority shareholding in PT

Disposal of Assets Transaction, and Acquisition of Assets Transaction To : Director and Manager The Stock Exchange of Thailand Enclosure 1. Information Memorandum on the Disposal of Komchadluek Business and