1 2Q21 MD&A Advanced Info Service Plc. Executive Summary Prolonged economic impact from new phase of pandemic in 2Q21 As the new phase of pandemic re-emerged in the second quarter, we observed the

power was limited following rising energy price and inflation. The increased cost of living put pressure on consumers to spend wisely and reduced costs where required. The economic recovery benefited

power was limited following rising energy price and inflation. The increased cost of living put pressure on consumers to spend wisely and reduced costs where required. The economic recovery benefited

power was limited following rising energy price and inflation. The increased cost of living put pressure on consumers to spend wisely and reduced costs where required. The economic recovery benefited

for the year from discontinued operations. - - - - - (8) 8 100% Profit (loss) attributable to Equity holders of the Company 158 9 149 1650% 309 176 134 76% Earnings per share (THB/share) 0.26 0.02 0.25

314.48 341.71 (27.23) (7.97%) Earnings per share (EPS) 0.19 0.21 (0.02) (7.97%) Raw water costs 51% Tap water costs 38% Rental and services costs 6% Construction cost under Concession Agreements 5% Raw

recession due to the COVID-19 pandemic. Economic activity was crippled almost across the board in light of lockdown measures implemented in several countries to contain the viral transmission. Financial

-5.04 -25.4% Administrative expenses 25.75 25.02 0.73 2.9% Total expenses 741.40 690.89 50.51 7.3% Earning before interest and tax 75.54 61.16 14.38 23.5% Financial expenses -1.64 -2.72 1.08 -39.7% Share

20230208-ADVANC-MDA-4Q22-EN Classification: Internal FY22 MD&A Advanced Info Service Plc. 1 Executive Summary Maintaining growth in core products amid cautious economic recovery 2022 displayed an

following the policy rate increase by the US Federal Reserve, may see an economic slowdown during this quarter. Aside from their fragile economic fundamentals, these countries were vulnerable to capital