Summary of operations and the factors that make a significant change Summary of Operations for the Year 2019 Topic Annual Balance Change 2019 2018 2019 VS 2018 (MB) (MB) % Total Revenue 7,076.7 4,237.6

paid an interim dividend of THB 523m in Q4/19 (THB 0.65/share). For the year 2018 the company paid full dividends of THB 1,610m (THB 2.00/share). An interim dividend paid of THB 805m in Q4/18 and the

depreciation and amortization expenses Financial Performance Project UpdatesExecutive Summary Change QoQ YoY +/(-) Operating revenue 5,553 5,366 5,459 2% (2%) 11,037 10,825 (2%) Gross profit 1,251 1,098 1,256 14

selling price due to limited export from China. The overall sales volume decreased, except for ECH, as a consequence of major turnaround in Q2’ 18. The share of domestic and export sales have no significant

Baht) Separate financial statements 2018 2017 % Change Sales and Service Income 1,940.22 1,979.16 (1.97) Cost of Sales and Services 1,572.51 1,525.25 3.10 Selling and Administrative Expenses 218.91

-month ended June 30, 2017 as follows: Income Statement For the six-month ended June 30 Change Unit: Million Baht 2017 2016 Amount % Revenues from construction services and sales of construction materials

follows: Income Statement For the three-month ended March 31 Change Unit: Million Baht 2018 2017 Amount % Revenues from construction services and sales of construction materials 7,389.74 8,064.50 (674.76

1 -Translation- Ref :IR 62/023 December 23, 2019 Subject: Change in Shareholding Structure of Subsidiary Company (edit) To: President, The Stock Exchange of Thailand T.K.S. Technologies Public

1 -Translation- Ref :IR 62/023 December 23, 2019 Subject: Change in Shareholding Structure of Subsidiary Company (edit no.2 ) To: President, The Stock Exchange of Thailand T.K.S. Technologies Public

million newly issued shares to PLANB (accounting for 19.96 percent of the paid registered capital after the private placement), at 1.4381 baht per share, totaling 1,553.15 million baht. The remaining