Microsoft Word - 2019_Q2 Results Notification letter_English _1st Draft_ August 13, 2019 The Director and Manager The Stock Exchange of Thailand Re: Information on Operating Results for the Second

1 28 May 2020 Subject: Explanation of operating result in the financial statement ended 31 March 2020 To: Directors and Managers of the Stock Exchange of Thailand With reference to the audited

percent of the Company’s net tangible asset value, the Company is therefore required to disclose the information memorandum on execution of the connected transaction to the Stock Exchange of Thailand

/2018 December 19, 2018 Re: Notification of Resolutions of the Board of Directors’ Meeting No. 8/2018 Attn.: President The Stock Exchange of Thailand Enclosure 1. Information Memorandum on Acquisition of

the Year as at 31 December 2018 To The President The Stock Exchange of Thailand We, ZEN Corporation Group Public Company Limited (“the Group”), are please to inform you our management discussion and

SAAM Energy Development Public Company Limited - 1 - 7 November 2019 Subject: Management Discussion and Analysis for the period ended 30 September 2019 To: The President The Stock Exchange of

Manager The Stock Exchange of Thailand The Board of Directors Meeting of O.C.C. Public Company Limited No. 5/2561 held on October 17, 2018 had resolved to approve the purchase of ordinary shares of Shop

Ref.No.IVL001/08/2019 8th August 2019 President The Stock Exchange of Thailand Subject: Acquisition of Integrated Oxides and Derivatives Businesses/ Assets Enclosure: Information concerning the Acquisition of

1 - TRANSLATION - KT/PB (Q-Con) 020/2019 August 7, 2019. Attention Managing Director The Stock Exchange of Thailand Subject : Management Discussion and Analysis the second quarter ended 30 June 2019

1 - TRANSLATION - KT/PB (Q-Con) 025/2019 November 1, 2019. Attention Managing Director The Stock Exchange of Thailand Subject : Management Discussion and Analysis the third quarter ended 30 September