Attn : The Directors and The MAI Manager Ref: Dimet AC 2006/001 June 16, 2020 Attention: The Directors and The MAI Manager The Stock Exchange of Thailand Subject: Report on Q.3’s performance (January

? directorship or executive position, SEC Deputy Secretary-General Vasant Thienhom clarified that ?Under the Securities and Exchange Act B.E. 2535, any person against whom the SEC files criminal complaint on the

Limited (BSEC)  based on nonpublic information he had known by virtue of his working positions. Following a referral from the Stock Exchange of Thailand (SET), the SEC?s further investigation has revealed

any responsibility for its accuracy nor be held liable for any loss or damages arising from or related to its use. ----------------------------- Notification of the Office of the Securities and Exchange

@halcyon.co.th No. CS-2563/013 14 August 2020 Subject: Management Discussion and Analysis for the 3-Month Period Ended 31 March 2020 To: Directors and Managers The Stock Exchange of Thailand Halcyon Technology

for a reason of increasing in gain from exchange rate. 1.2 Cost of goods sold and expenses Consolidated (Thousands Baht) 1st Quarter Change 2019 2018 Amount % Cost of goods sold -453,166 -244,141

May 15, 2020 Subject : Management Discussion and Analysis for 1st quarter ended March 31, 2020 Attention : President The Stock Exchange of Thailand 1. Operating Performance 1.1 Revenues Consolidated

, which has been presented under loss from change in fair value of financial assets measured at fair value through profit and loss (Q2/2019 loss from exchange rate Baht 4 million) Profit / (Loss) For Q2

February 26, 2017 Subject : Management Discussion and Analysis for year and 4th quarter ended December 31, 2017 Attention : President The Stock Exchange of Thailand 1. Operating Performance

ที ่B52-2020-08/001 14 August 2020 Subject: Management Discussion and Analysis - for the three-month period ended 30 June 2020 To: The President of Stock Exchange of Thailand B-52 Capital Public