profit 463.1 465.6 496.5 6.6% 7.2% 1,337.0 1,401.5 4.8% Net gain on exchange rate 37.6 30.9 83.6 170.6% 122.3% 91.2 169.6 86.0% Gain on forward contracts 8.4 4.5 6.0 33.3% (28.6%) 7.1 21.7 205.6% Gain from

%. SG&A in terms of % to revenue improved from 6.8% in Q1 2021 to 5.8% in Q1 2022. Core operating profit (defined as Earnings before Interests and Taxes exclude interest income, gain (loss) on exchange

%. SG&A in terms of % to revenue improved from 6.1% in 1H 2022 to 5.7% in 1H 2023. Core Operating Profit (defined as Earnings before Interests and Taxes exclude interest income, gain (loss) on exchange

315.8 255.2 219.6 (13.9%) (30.5%) 590.8 474.8 (19.6%) Add (less): Loss/gain from extraordinary items* (51.2) (89.1) (9.0) (34.3) (98.0) Net profit from ordinary activities attributable to the parent 264.6

% Gross profit 463.7 466.2 421.6 (9.6%) (9.1%) 935.3 887.7 (5.1%) Net gain (loss) on exchange rate 86.7 (17.4) 62.7 N.A.(>100) (27.7%) 82.1 45.3 (44.8%) Gain (loss) on forward contracts 0.7 (1.5) 0.1 N.A

underestimation of workload on major projects, which cause the loss at the contract profit margin level. One reason for net loss is because of the lower prices for these projects which were awarded during Q4/2017

) - (870.5) N.A.(

) -6.7% Profit attributable to Owners of the Parent 424.2 716.2 -40.8% Foreign Exchange Gain (Loss) 94.6 250.6 -62.2% Adjustments of Revenue Levelization (TFRS 15)5 (64.6) 0.0 N/A Normalized Profit

% (2,766.3) (3,674.1) 32.8% Gross profit 496.5 463.7 464.1 0.1% (6.5%) 1,401.5 1,399.4 (0.1%) Net gain (loss) on exchange rate 83.6 86.7 113.7 31.1% 36.0% 169.6 195.8 15.4% Gain (loss) on forward contracts 6.0

) (1,174.0) (1,350.7) (1,370.2) 19.5 1.4% (3,808.0) (5,044.3) 1,236.3 32.5% Gross profit 471.6 463.7 464.1 473.3 9.2 2.0% 1,918.9 1,872.7 (46.2) (2.4%) Net gain (loss) on exchange rate (4.6) 86.7 113.7 (142.3