common control basis. 2017 2018 2017 2018 Profitability Ratios Liquidity Ratios Gross profit 1 (%) 58.3% 48.5% Current ratio (times) 1.4 1.5 Operating EBITDA (%) 36.5% 25.4% Quick ratio6 (times) 1.4 1.5

Liquidity Ratios Current ratio (times) 2.0 0.6 2.0 0.6 Number of days of inventory (days) 29 38 31 37 Collection period (days) 44 44 45 44 Accounts payable (days) 43 45 44 42 Profitability Ratios Gross profit

, or a total of Baht 91.80 million. Liquidity and capital adequacy As at 30 September 2019 and 31 December 2018, the current ratio of the Company and its subsidiaries are 2.72 times and 4.58 times

31-Dec 2018 (Restated) 31-Dec 2019 Profitability Ratios Liquidity Ratios Gross profit 1 (%) 46.9% 35.6% Current ratio (times) 1.6 1.3 Operating EBITDA (%) 26.0% 15.5% Quick ratio6 (times) 1.6 1.3 Net

. Financial Ratio Analysis Q4'19 Q4'18 2019 2018 Liquidity Ratios Current ratio (times) 1.8 2.7 1.8 2.7 Number of days of inventory 30 35 33 36 Collection period (days) 46 42 47 45 Accounts payable (days) 45 43

% 1Q17 MD&A Advanced Info Service Plc. 5 Key Financial Ratio 1Q16 4Q16 1Q17 Interest-bearing debt to equity (times) 1.65 2.30 2.52 Net debt to equity (times) 1.23 1.97 2.17 Net debt to EBITDA (times) 0.85

2016/17 (Restated) 1Q 2017/18 Liquidity Ratios 1Q 2016/17 (Restated) 1Q 2017/18 Gross profit 1 (%) 59.1% 58.2% Current ratio (times) 0.9 0.8 Operating EBITDA (%) 70.9% 41.4% Quick ratio6 (times) 0.8 0.7

analysis of key financial ratios Liquidity ratio increased by 0.97 time, from 0.57 time to 1.54 times due to repayment of short-term borrowings to the financial institutions by using money gained from

THB 65mn. FINANCIAL RATIOS Profitability Ratios 2Q 2016/17 (Restated) 2Q 2017/18 Liquidity Ratios 31-Mar-17 (Restated) 30-Sep-17 Gross profit (%) 58.9% 60.4% Current ratio (times) 0.9 0.9 Operating

4Q17 Cash 11,226 4.1% 10,650 3.7% Interest-bearing debt to equity (times) 2.3 2.5 2.2 ST investment 2,963 1.1% 2,643 0.9% Net debt to equity (times) 2.0 2.3 1.9 Trade receivable 11,377 4.1% 14,179 5.0