2018 Return on Equity (ROE) 0% 19% 7% 17% Return on Assets (ROA) 0% 9% 3% 8% Return on Fixed Assets (ROFA) 16% 37% 21% 33% Debt/Equity Ratio 1.59 1.45 1.59 1.45 Net Debt/Equity Ratio 1.25 1.11 1.25 1.11

44.54 115% Q4 2019 Q4 2018 FY 2019 FY 2018 Return on Equity (ROE) -7.02% 15.28% 1.33% 14.45% Return on Assets (ROA) -2.72% 7.38% 0.51% 6.98% Return on Fixed Assets (ROFA) 11.83% 26.84% 17.72% 29.17% Debt

2017 FY2016 Return on Equity (ROE) 8.37% 2.52% 12.22% 11.29% Return on Assets (ROA) 5.05% 1.56% 7.37% 6.97% Return on Fixed Assets (ROFA) 23.35% 22.33% 27.68% 31.92% Debt/Equity Ratio 0.69 0.62 0.69 0.62

% 7% 5% 7% Return on Fixed Assets (ROFA) 26% 29% 26% 29% Debt/Equity Ratio 1.41 1.34 1.41 1.34 Net Debt/Equity Ratio 1.11 0.81 1.11 0.81 Leverage (Net Debt/EBITDA) 2.80 2.25 2.80 2.25

% 36.06% Debt/Equity Ratio 1.34 0.67 1.34 0.67 Net Debt/Equity Ratio 0.81 0.25 0.81 0.25 Leverage (Net Debt/EBITDA) 2.27 0.71 2.27 0.71

period 63.72 113.16 -49.44 -44% Q2 2018 Q2 2017 FY 2018 FY 2017 Return on Equity (ROE) 17% 16% 16% 16% Return on Assets (ROA) 8% 10% 7% 10% Return on Fixed Assets (ROFA) 35% 33% 32% 34% Debt/Equity Ratio

(ROFA) 28% 22% 31% 30% Debt/Equity Ratio 1.38 0.78 1.38 0.78 Net Debt/Equity Ratio 1.13 0.43 1.13 0.43 Leverage (Net Debt/EBITDA) 3.06 1.80 2.82 1.35

2019 FY 2020 FY 2019 Return on Equity (ROE) 1.48% 0.01% 8.65% 6.51% Return on Assets (ROA) 0.44% 0.00% 2.55% 2.59% Return on Fixed Assets (ROFA) 17.46% 16.31% 21.36% 21.00% Debt/Equity Ratio 3.03 1.59

2018 Return on Equity (ROE) -1% 10% 4% 14% Return on Assets (ROA) 0% 5% 2% 7% Return on Fixed Assets (ROFA) 16% 29% 20% 31% Debt/Equity Ratio 1.61 1.38 1.61 1.38 Net Debt/Equity Ratio 1.34 1.13 1.34 1.13

Company gradually repaid its long-term loan in advance and set-off the total USD loan before maturity date by the end of 2018. As of December 31, 2018, Net Interest-bearing Debt to Equity improved from 0.31