Microsoft Word - 5. TKS - SET Announcement (BOD) (EN) - final (first amendment with allocation ratio).docx 1 (-Translation-) Ref. IR 60/011 December 12, 2017 Subject: Reduction of the Registered

profit in 2016 and dividend payment. Key Financial Ratio Financial Ratio 2016 2017 Current ratio 0.59 0.54 Debt to Equity ratio 1.69 2.19 Interest Bearing Debt ratio 0.77 1.13 Return on Asset 15.5% 14.6

/2020 Current ratio 0.57 0.61 0.62 Debt to Equity ratio 1.95 1.91 2.15 Interest Bearing Debt ratio 0.87 0.85 0.93 Return on Asset 15.6% 0.15 14.8% Return on Equity 47.6% 42.0% 42.3% Financial Ratio 5

payment. Quarter Quarter Quarter 2/2019 1/2020 2/2020 Current ratio 0.61 0.57 0.61 Debt to Equity ratio 1.84 2.13 1.91 Interest Bearing Debt ratio 0.79 0.78 0.85 Return on Asset 15.5% 16.1% 15.2% Return on

Equity ratio 1.75 1.64 2.13 Interest Bearing Debt ratio 0.77 0.70 0.78 Return on Asset 15.2% 15.7% 16.8% Return on Equity 44.5% 45.2% 48.0% Financial Ratio 5 Forth Smart Service Public Company Limited

2/2018 3/2018 Current ratio 0.54 0.53 0.51 Debt to Equity ratio 2.28 2.35 2.47 Interest Bearing Debt ratio 1.00 1.17 1.21 Return on Asset 18.0% 13.6% 13.9% Return on Equity 46.8% 44.4% 46.0% Financial

Financial Ratio Quarter Quarter Quarter 3/2018 2/2019 3/2019 Current ratio 0.51 0.61 0.57 Debt to equity ratio 2.47 1.84 1.95 Interest bearing debt ratio 1.21 0.79 0.87 Return on asset 13.9% 15.5% 15.6

Quarter Quarter Quarter 1/2017 4/2017 1/2018 Current ratio 0.52 0.54 0.59 Debt to Equity ratio 2.00 2.19 1.77 Interest Bearing Debt ratio 0.58 1.13 1.13 Return on Asset 20.3% 14.6% 13.3% Return on Equity

Interest Bearing Debt ratio 1.13 0.99 0.77 Return on Asset 13.3% 14.3% 15.2% Return on Equity 39.5% 49.3% 44.5% Financial Ratio 5 Forth Smart Service Public Company Limited (FSMART) 1Q19 Management

Interest Bearing Debt ratio 0.95 0.77 0.79 Return on Asset 13.6% 15.2% 15.5% Return on Equity 44.4% 44.5% 46.3% Financial Ratio As of June 30, 2019, the Company had the current ratio of 0.61 times