otherwise) whatsoever for any loss howsoever arising from any use of this presentation or its contents or otherwise arising in connection therewith. Individual situations and local practices and standards may

. The company, for example, assigns each individual unit to monitor operation and report to the respective supervisors. Alternatively, the company assigns the internal auditor to monitor operation and

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

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

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