Microsoft Word - MDA Q219 EN August 14, 2019 To President The Stock Exchange of Thailand Subject Notification on the difference of revenue from sales and net profit YOY by more than 20 percent

are explained as follows; Separate Financial Statement Q1/2019 Q1/2020 Change MB % MB % MB % Rental Income 126.9 81.2% 97.7 59.2% -29.1 -23.0% Revenue from contracts with customers 29.4 18.8% 67.4 40.8

from last year that showed Baht 0.27 per share. Statement of Comprehensive Income For the three-month period ended 31 March  The company has revenue from sale Baht 386.0 million, increased from the same

gross margin. Q4’19 Net profit* was at THB 823 million (+4.3% YoY). - 2019 Revenue from sales grew by 5.4% YoY, amounting to THB 25,611 million, aligned with our guidance. Taking out effect from exchange

higher demand of automotive parts in the country. Moreover, the revenue in South America zone increased by 11% from new customers and rental mold income. The revenue in Africa and European zones decrease

) Other Incomes 65.83 78.14 Total Revenues 7,922.87 7,879.44 Selling & Administrative Expense 494.47 507.94 Finance Costs 83.94 90.76 Net Profit 17.98 443.44 Earnings per share (Baht) 0.05 1.11 The company

depreciation 92.44 66.21 40% 362.47 284.21 28% % Earnings before interest, taxes and depreciation 25% 21% 4% 25% 23% 2% Other income /(expenses) 5.88 5.74 3% 21.17 14.54 46% Financing cost 0.03 2.15 -99% 3.01

EBITDA and lower FX gain. 1Q23 Financial Summary Classification: Internal 1Q23 MD&A Advanced Info Service Plc. 5 Income statement (Bt mn) 1Q22 4Q22 1Q23 %YoY %QoQ Mobile revenue 28,847 29,524 29,258 1.4

. Appendix Contact us: http://investor.ais.co.th | investor@ais.co.th | (66) 2 029 4443 Income statement (Bt mn) Post TFRS 15 1Q19 2Q19 3Q19 4Q19 %QoQ FY19 Mobile revenue 30,678 32,042 31,851 31,770 -0.3

increase of revenue. This was primarily due to high base of 2Q’17 revenue following the adjustment of social security income for the amount of THB 7.7 million. Meanwhile, the 2Q’18 administrative expenses