Internal Control Sufficiency Evaluation Form Concepts and Objectives Good internal control is essential for a listed company or a public company as it can help preventing, managing, mitigating risks

% Household Customer 26% Private Industrial Park 12% Factories 5% Internal Usage 10% Raw Water Distribution by Area (Internal usage for tap water production is included) Map Ta Phut 50% Chonburi 24% Pluak Daeng

% Internal Usage 10% Raw Water Distribution by Area (Internal usage for tap water production is included) Map Ta Phut 50% Chonburi 24% Pluak Daeng - Bowin 11% Ban Chang - Sattahip 10% Chachoengsao 5% EASTERN

Water Distribution by Customer Group (Internal usage for tap water production is included) Raw Water Distribution by Area (Internal usage for tap water production is included) Jan – Mar 2017 = 69.98

) 30 9 million Baht Board of directors: 3 directors from ABN and 2 directors from SPI, in total of 5 directors Source of fund: Internal cash flow Business benefit The JV is intended to develop the fibre

SEC plans to revise rules on sale conducts for investment units after a survey of 55 branches of 18 commercial banks in Bangkok area indicated necessity for improvement particularly in relation to

Distribution by Area (Internal usage for tap water production is included) Map Ta Phut 54% Chonburi 19% Pluak Daeng - Bowin 11% Ban Chang - Sattahip 11% Chachoengsao 5% Jan – Jun 2020 = 131.54 million Cu.M

% Raw Water Distribution by Area (Internal usage for tap water production is included) Internal Usage 10.84% Internal Usage 11.54% Factories 1.12% Factories 0.98% Private Industrial Park 1.40% Private

transportation and contact, and the rental fee is at the level that is suitable with the area nearby, and the machineries for internal lacquer production. Total price of the transactions is 7,159,625 THB or

0.58% Total tap water sales volume 24.31 23.81 0.51 2.13% 96.55 96.43 0.12 0.13% Raw Water Distribution by Area (Internal usage for tap water production is included) Jan – Dec 2017 = 256.13 million Cu.M