Million. Significant Financial Ratios* Description Unit 3rd Quarter 2019 2018 Net Profit Margin ratio % 21.60 26.12 Return on Equity ratio % 8.24 10.85 Return on Total Assets ratio % 3.21 4.04 Debt to

effect of foreign exchange rate) 2018 2017 1) Current Ratio (Times) 3.04 2.61 2) Profit to Total Revenue (excluded fuel costs) (%) 33.35 31.15 3) Return on Equity ** (%) 9.01 9.00 4) Return on Assets

Million. Significant Financial Ratios* Description Unit 1st Quarter 2019 2018 Net Profit Margin ratio % 21.33 18.65 Return on Equity ratio % 10.40 10.18 Return on Total Assets ratio % 3.92 3.81 Debt to

Return on Equity - ROE (%) (1.10) (0.23) Return on Assets - ROA (%) (1.18) (0.16) Net Profit Margin (%) (6.68) (5.23) Please be informed accordingly. Yours Sincerely, Mr. Piyawat Ratchapolsitte Chief

Ratio Financial Ratio As of December 31, 2019 As of December 31, 2019 Liquidity Ratio (times) 24.87 23.97 Debt to Equity Ratio (times) 0.05 0.04 Return on Equity - ROE (%) 3.79 (1.10) Return on Assets

Period (Day) 58 58 66 CASH CYCLE (Day) 9 14 18 PROFITABILITY RATIO Gross Profit Margin (%) 8.57 7.82 10.37 Net Profit Margin (%) 4.61 3.56 5.94 Return on Equity (%) 6.03 5.01 8.05 EFFICIENCY RATIO Return

day sales from 13.5 days to 16.1 days, and shorter average payment period from 35.9 days to 31.2 days. - Translation - Page 6 of 6 3. Return on shareholders’ equity Return on shareholders’ equity for

1Q2019 1Q2018 4Q2018 Current ratio (x) 5.2 7.5 4.4 EBITDA to sales revenue (%) 5.1 4.6 7.8 Net profit to sales revenue (%) 0.8 1.4 12.1 Return on total assets (%) (10.9) 3.9 (10.5) Return on equity

Sales Revenue (%) 6.6 5.0 5.9 Net Profit to Sales Revenue (%) 4.5 0.8 4.9 Return on Total Assets (%) 4.1 (10.9) 2.3 Return on Equity (%) 3.2 (11.5) 1.0 Debt to Equity (x) 0.4 0.3 0.3 Interest Bearing Debt

(%) 3.2 4.7 4.6 Net profit to sales revenue(%) (43.7) 1.5 1.4 Return on total assets(%) (10.5) 4.6 3.0 Return on equity(%) (14.1) 6.5 4.0 Debt to equity(x) 0.4 0.3 0.3 Interest bearing debt to equity(x) 0.2