. (Acceptance and Continuance of Client Relationships and Specific Engagements) 5. (Resources) 6. (Engagement Performance) 7. (Information and Communication) 8. (Monitoring and Remediation Process)

million baht 1,247 1,247 1,247 Key financial ratios Liquidity ratios Current ratio times 3.07 3.11 3.14 Quick ratio times 2.22 2.38 2.43 Cash ratio times 0.36 0.38 0.45 Receivable turnover times 4.82 4.70

capital-Paid million baht 1,247 1,247 1,247 Key financial ratios Liquidity ratios Current ratio times 2.99 3.07 3.09 Quick ratio times 2.04 2.22 2.35 Cash ratio times 0.45 0.37 0.38 Receivable turnover

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

treasury shares of Baht 511.96 million. - 9 - (2.7) Financial Ratios Financial Ratios As at June 30, 2020 As at December 31, 2019 Current Ratio (Times) 1.08 1.64 Quick Ratio (Times) 0.49 0.65 Cash flow

a communication channel to educate people of self-protection and provide a list of hospitals to get test for COVID-19 through digital media. Furthermore, we joined hands with Phrae Ministry of Public

Ratio Item Unit Y2019 Y2018 Y2017 1.Current Ratio Times 11.21 9.28 9.42 2.Quick Ratio Times 2.06 1.38 3.16 3.Collection Period Day 33 33 46 4.Payment Period Day 74 84 96 5.Sales Inventory Period Day 723

8.48 M.Bht 2. Financial Status and Major Financial Ratio Item Unit Y2017 Y2016 Y2015 1.Current Ratio Times 9.42 5.86 1.98 2.Quick Ratio Times 3.16 2.70 0.68 3.Collection Period Day 46 41 43 4.Payment

Times 9.28 9.42 5.86 2.Quick Ratio Times 1.38 3.16 2.70 3.Collection Period Day 33 46 41 4.Payment Period Day 84 96 76 5.Sales Inventory Period Day 660 466 272 6.Fixed Asset Turnover Times 2.7 1.98 2.01 7

the 1st quarter ended 31 March Description Unit 2018 2017 2016 1. Liquidity ratio Time 9.48 6.69 9.48 2. Liquidity quick ratio Time 1.47 3.26 6.16 3. Average debt collection time Day 53 62 45 4. Average