(311.70) (258.46) 53.24 20.60 Gross profit 33.17 17.48 15.69 89.76 Other income 0.75 0.90 (0.15) (16.67) Profit before expense 33.92 18.38 15.54 84.55 Administrative expenses (16.76) (15.49) 1.27 8.20

ended 30 June 2018, which net profit has changed more than 20% from the last year as follows: Statement of Comprehensive Income Unit: Million Baht 30 June 2018 30 June 2017 Increased (Decreased

35.1% Cost of Service 672.4 36.0% 875.4 34.7% 203.0 30.2% Gross Profit 1,086.3 58.1% 1,413.0 56.0% 326.7 30.1% Other Income 6.4 0.30% 11.8 0.5% 5.4 84.4% Administrative Expenses 302.8 16.2% 394.1 15.6

expenses increased slightly by only 0.15% from Baht 389.26 million in Q1 2020 to Baht 389.86 million in Q1 2021. Core operating profit (defined as Earnings before Interests and Taxes exclude interest income

ended 31 December 2018, which net profit has changed more than 20% from the last year as follows: Statement of Comprehensive Income Unit: Million Baht 31 December 2018 31 December 2017 Increased

June 2020, which net profit has changed more than 20% from the last year as follows: Statement of Comprehensive Income Unit: Million Baht 30 June 2020 30 June 2019 Increased (Decreased) Percentage Remark

ended 30 September 2019, which net profit has changed more than 20% from the last year as follows: Statement of Comprehensive Income Unit: Million Baht 30 September 2019 30 September 2018 Increased

- Testing and Inspection 13.89 13.12 0.77 5.87% 3 Cost of sales and services (442.04) (406.41) 35.63 8.77% Gross Profit 43.73 30.54 13.19 43.21% Other income 3.89 3.28 0.61 18.51% 4 Profit before expenses

%) Gross Profit 192.41 39.9% 237.71 45.4% 45.30 23.5% SG&A 82.75 17.2% 97.39 18.6% 14.64 17.7% EBITDA 155.43 32.2% 186.69 35.7% 31.26 20.1% EBIT 109.66 22.7% 140.33 26.8% 30.67 28.0% Interest Expenses (0.80

31 December 2019 to ending on 31 December 2021 must have a net profit (excluding special items) amounting not less than 100,000,000 per year (the “Second Share Purchase Condition”). The payment for and