% Debt to Equity ratio 0.10 0.11 Earnings per share 0.46 0.80 ROA 11.0% 19.8% ROE 10.9% 20.8%

faithfully, (Mr. Hiroaki Sano) Managing Director Financial Ratios Q2 2019 Q2 2018 Gross profit margin 20.7% 18.8% Net profit margin 14.3% 12.0% Debt to Equity ratio 0.10 0.10 Earnings per share 0.57 0.43 ROA

Equity Yours faithfully, Mr. Hiroaki Sano Managing Director Financial Ratios Q2 2018 Q2 2017 Gross profit margin 19.2% 20.1% Net profit margin 12.0% 8.4% Debt to Equity ratio 0.11 0.14 Earnings per share

average Total Equity Yours faithfully, Mr. Hiroaki Sano Managing Director Financial Ratios Q3 2018 Q3 2017 Gross profit margin 20.2% 17.7% Net profit margin 11.9% 7.4% Debt to Equity ratio 0.14 0.12

% 11.9% Debt to Equity ratio 0.09 0.14 Earnings per share 0.90 0.53 ROA 19.6% 12.9% ROE 21.4% 13.5% Gross profit margin = Gross Profit (Total Sales – Costs of Sales) to Sales Net profit margin = Net Profit

margin 25.3% 18.1% Net profit margin 17.6% 11.9% Debt to Equity ratio 0.17 0.10 Earnings per share 0.66 0.46 ROA 13.1% 11.0% ROE 14.0% 10.9% Gross profit margin = Gross Profit (Total Sales – Costs of Sales

1.0 Trade receivable 16,579 4.7% 16,173 4.4% Net debt to EBITDA (times) 0.7 0.8 0.8 Inventories 2,372 0.7% 3,189 0.9% Net debt & lease liability & spectrum license payable to EBITDA 2.3 2.2 2.3 Others

Inventories 2,104 0.6% 3,831 1.1% Net debt & lease liability & Spectrum license payable to EBITDA 2.2 2.2 2.1 Others 4,111 1.2% 4,391 1.2% Current Assets 35,566 10% 41,017 12% Current Ratio (times) 0.4 0.4 0.4

&16 Key Financial Ratio Post-TFRS 9&16 (Bt mn/% to total asset) 4Q19 2Q20 2Q19 1Q19 2Q20 Cash 19,637 6.8% 25,826 7.0% Interest-bearing debt to equity (times) 1.5 1.5 1.3 ST investment 1,989 0.7% 1,732

equity (times) 1.1 0.9 1.1 Net debt to EBITDA (times) 0.9 0.9 1.0 Net debt & lease liability & spectrum license payable to EBITDA 2.3 2.2 2.2 Current Ratio (times) 0.4 0.4 0.3 Interest Coverage (times