unlawful acts in other cases. ✓ ✓ ✓ Summary of the types of auditor’s reports (Form 61-4)* *Since 1 December 2020, this information has no longer been required. ✓ ✓ Related party transactions (RPT) of the

1 Ref. No. IVL 007/08/2017 9 Aug 2017 The President The Stock Exchange of Thailand Subject: Submission of Quarterly Reviewed Financial Statements and the Management Discussion and Analysis of

investment on assets (Revision 2) Attention: Directors and Managers The Stock Exchange of Thailand Attachment: 1. Information on the investment on assets 2. F53-4 form 3. Details on the issuance of warrants to

amended) and the Notification of the Board of Governors of the Stock Exchange of Thailand Re: Disclosure of Information and Other Acts of Listed Companies Concerning the Acquisition and Disposition of

the lease agreements (TFRS 16). Executive Summary Q1/2020 Operating SummaryHighlights Note: 1. Since the Q1/2020, the company has changed the classification of expenses, therefore, the gross profit

; income (loss) from continuing operations per share; 3    total assets; total liabilities; net assets or liabilities; capital stock (excluding long term debt and redeemable preferred stock); number of

005/2017 24 November 2017 Subject: Informing on the acquisition of assets of ZIGA Innovation Public Company Limited Attention: The President The Stock Exchange of Thailand Attachment: Disclosure of

12 December 2017 Subject: Resolutions of Board of Directors Meeting No. 14/2017 Attention: President Stock Exchange of Thailand Enclosures: 1. Information Memorandum on Asset Disposal, Transaction No

(English Translation) Page 1 Date : 5 February 2018 Subject : Notification of the Board of Directors’ Resolution Concerning the Plan to Spin Off its Subsidiary and to List Shares on the Stock

annual general meeting of shareholders for the Year 2018 To : The President The Stock Exchange of Thailand Attachment : Information Memorandum about the Acquisition of Assets and Connected Transaction The