Analysis Q2/2020 IR63/013 13 August 2020 Subject Management Discussion and Analysis for the second quarter ended 30 June 2020 Attention President The Stock Exchange of Thailand According to the resolution of

Stock Exchange of Thailand K. W. Metal Work Public Company Limited (the “Company”) would like to submit management discussion and analysis for the three month-period ended March 31, 2019 with details as

, 2018 To : President The Stock Exchange of Thailand K. W. Metal Work Public Company Limited (the “Company”) would like to submit management discussion and analysis for the 6-month period ended June 30

Translation CEN 016-2020 August 14, 2020 Subject Management Discussion and Analysis for business operation of Quarter 2/2020 To The Manager and President The Stock Exchange of Thailand Capital

Determination of the Date of Extraordinary General Meeting of Shareholders No. 1/2018 To: President The Stock Exchange of Thailand Enclosures: 1. Information Memorandum on the Offering of Newly Issued Ordinary

: Management explanation and analysis for the yearly ending 31 December 2019 Attention: The President of, The Stock Exchange of Thailand ZIGA Innovation Public Company Limited ( “the Company” ) would like to

(-Translation-) Ref. No. SorNor. 036/2018 August 10, 2018 To: The President The Stock Exchange of Thailand Re: Disclosure of Information regarding Connected Transaction by Subsidiary Whereas, the

Machines for the Debenture Debt repayment To: President The Stock Exchange of Thailand Enclosure: Information Memorandum on the Asset Disposal, Schedule 1 of Rich Asia Corporation Public Company Limited

assets and convening the Extraordinary General Meeting of the Shareholders No. 1/2018 (Revise 3) To : President, The Stock Exchange of Thailand Attachment : 1. Capital Increase Report Form (F 53-4) 2

offer for all securities of the business; (8) “business” means a company whose securities are listed on the stock exchange, a company whose securities are traded in the securities trading center, or a