Cu.M., or 9.40%, as the discount for household customers in 2019. Raw Water Volume (Million Cu.M) 1st Quarter 2020 2019 YOY % Total distribution volume 71.50 77.35 (5.85) (7.56%) Internal usage for tap

Control | - |- Compliance / Internal control | - |- Information Technology |- Internal operation of Securities Companies | - |- Outsourcing Services | - |- Appoint service provider OR marketing

/2017 YoY % Total distribution volume 68.17 59.67 (8.49) (12.46%) 216.87 196.67 (20.20) (9.32%) Internal usage for tap water 8.12 6.76 (1.36) (16.76%) 23.51 22.70 (0.82) (3.47%) Net Raw Water Sales Volume

operate the project and has profit as agreed during the period of agreement after Phase 2-4 start to operate water distribution. HECH would purchase more GS’s share in the future from exisiting shareholder

internal short

-0.01 -0.12 5.08 119.96 21.16 -2.64 23.80 -899.95 Other revenues 4.47 4.47 2.46 0.01 0.13 2.01 81.71 13.10 6.92 6.18 89.24 Distribution cost 5.97 5.69 7.43 0.29 5.04 -1.46 -19.68 18.21 13.38 4.84 36.17

% Total distribution volume 61.62 59.46 2.15 3.62% 249.75 256.13 (6.38) (2.49%) Internal usage for tap water 7.45 7.53 (0.08) (1.09%) 29.76 30.23 (0.46) (1.54%) Net Raw Water Sales Volume 54.17 51.93 2.24

1,516.80 (29.24) (1.89%) Gross Profit Margin 53.12% 60.64% 57.34% 61.86% Raw Water Distribution by Customer Group (Internal usage for tap water production is included) Raw Water Distribution by Area

. Corporate social responsibility 11. Internal control and risk management 12. Related transactions Part 3: Financial Position and Operating Results 13. Significant financial information 14. Management

structure 11. Corporate governance 12. Social responsibility 13. Internal control and risk management 14. Related party transactions 2.4 Financial position and operating results 15. Important financial