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

EBITDA (%) 40.4% 45.4% Quick ratio (times) 0.8 0.7 Cash-to-net profit (%) 99.2% 96.4% Account receivable turnover (times) 4.9 4.3 Net profit (excl. NCI) (%) 23.9% 20.3% Average collection period (days

Gross profit 1 (%) 55.1% 58.2% Current ratio (times) 2.0 1.4 Operating EBITDA (%) 23.5% 37.3% Quick ratio6 (times) 2.0 1.4 Net profit (from operation) (%) 14.1% 24.3% Account receivable turnover (times

-Dec-17 Gross profit (%) 57.2% 60.6% Current ratio (times) 0.9 1.9 Operating EBITDA (%) 32.1% 38.0% Quick ratio (times) 0.8 1.8 Cash-to-net profit (%) 128.9% 100.9% Account receivable turnover (times

million baht 1,247 1,247 1,247 ratios Key financial Liquidity ratios Current ratio times 3.09 3.14 3.31 Quick ratio times 2.35 2.47 2.67 Cash ratio times 0.37 0.45 0.68 Receivable turnover times 4.71 4.67

expected approximately 100k by the end of 2020. However, quick development on 5G ecosystem, especially sharp decline in handset price, will accelerate no. of 5G users and other revenue on 5G related service

) Quick ratio (Time) 1.06 3.39 (2.33) Average collection period 85 80 (5) Days of inventory 206 217 (11) Profitability ratio Gross profit margin (%) 19.07% 26.34% (7.27%) Operating profit margin (%) 0.12

suppliers and contractors for the same. The ordering of the gear was under process with a lead time of 14 months offered from the supplier. However, with quick actioning of the contingency plan by the

1.5 Operating EBITDA (%) 37.9% 16.6% Quick ratio6 (times) 1.5 1.5 Net profit (from operation) (%) 18.5% 5.5% Account receivable turnover (times) 2.6 4.2 Net profit (after MI) 2 (%) 23.7% 5.7% Average

(Restated) 31-Mar-18 Gross profit (%) 58.4% 61.0% Current ratio (times) 0.9 1.8 Operating EBITDA (%) 44.5% 43.0% Quick ratio (times) 0.8 1.2 Cash-to-net profit (%) 94.8% 101.1% Account receivable turnover