November 13, 2020 Subject: The Management Discussion and Analysis for the third quarter ended September 30, 2020 To: President The Stock Exchange of Thailand Well Graded Engineering Public Company Limited

Limited Management Discussion and Analysis 2019 Gross Profit 2019 Gross profit at THB 5,033m represented a significant increase of 55% from the same period last year. Essentially, the Company’s gross profit

at THB 12,894 mn, an increase of 2.1% YoY. The rate of increase is lower than the growth in revenue from rent and services, courtesy of effective utility cost management. The rise in cost comes from

management service business, which was in line with increase of revenue of such business. • Overall expenses The total selling and administrative expenses was THB 957.92 million, a decrease of THB 30.74

1 MD&A 3Q 2018 (ended 30 September 2018) MASTER AD PLC MANAGEMENT DISCUSSION & ANALYSIS 3Q 2018 6 NOV 2018 MEDIA INDUSTRY Outdoor media has presently become the go-to choice for advertising. It’s

, adding our Equity MW under operation to 447.1 MW from 319.3 MW in the same period of last year. Other Income Q3 2016 Q3 2017 Increase/(Decrease) THB mm THB mm THB mm % Dividend and Management income 56.7

¸¡à¸´.ย.2560 WATTANAPAT HOSPITAL TRANG PUBLIC COMPANY LIMITED No. WPH – SET 3/2017 2 October 2017 Subject : Management Discussion and Analysis for Quarter 2 of 2017 ending on 30 June 2017 To

: Management explanation and analysis for the year ended 31 December 2017 Attention : The President of, The Stock Exchange of Thailand ZIGA Innovation Public Company Limited (“the Company”) would like to clarify

: Management explanation and analysis for three-month period ended 30 June 2019 Attention: The President of, The Stock Exchange of Thailand ZIGA Innovation Public Company Limited ( “the Company” ) would like to

increased by 22% yoy. This increase was driven by both non-social security and social security. Accelerated revenue growth from social security was not only due to the higher number of registered persons