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formulas, Production procedures and techniques, Production chart, Tool Standard, Standards of raw materials, Experimental analysis and control, Procedures and methods, Factory layout design, Equipment design

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a subsidiary company, which registered as a juristic person in Thailand under the Civil and Commercial Code on August 29, 2017. The subsidiary operates in real estate development and asset management

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1 Translation CEN 004-2019 February 27, 2019 Subject Management Discussion, analysis and business operation of year 2018 To The Manager and President The Stock Exchange of Thailand Yearly business

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15 May 2019 Subject: Management Discussion and Analysis for the 3-Month Period Ended March 31, 2019 To: Directors and Managers The Stock Exchange of Thailand Halcyon Technology Public Company Limited