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Investor Relations


Ans: East Water’s core business is to source raw water and to manage raw water distribution system in the eastern seaboard of Thailand. Our operation includes drawing water from Royal Irrigation Department’s reservoirs, private water sources and natural water sources, and distributing it to customers in Chachoengsao, Chonburi and Rayong through our 470 km. long water pipeline.  Moreover, the company founded Universal Utilities Pubic Company Limited or UU to engage in water-related services. Currently, UU’s main business is to produce tap water from surface water and seawater.

Ans: Around 60%-70% of our raw water customers are industrial estates and factories. Others are those who buy water for household consumption such as Provincial Waterworks Authority, municipalities and villages etc.


Sources Quota Limits
Dok Krai reservoir Not exceeding 6,000,000 cubic meters per month.
(72,000,000 Cu.M. per year)
Nong Kho reservoir Not exceeding 1,372,500 cubic meters per month
(16,470,000 cubic meters per year)
Nongplalai reservoir Not exceeding 10,000,000 cubic meters per month
(120,000,000 cubic meters per year)
Pra-sae reservoir Not exceeding 110,000,000 cubic meters per year
Bang Pakong river 44,000,000 cubic meters per year
During rainy season, the company draws water from Bang Pakong river. Some will be distributed to customers in Chachoengsao while the remaining will be reserved in Bangpra reservoir to be used during drought season.
Bangpra reservoir East Water is not granted the water allocation of Bangpra reservoir by The Royal Irrigation Department but we are allowed to reserve water, which is drawn from other sources, in Bangpra reservoir. The amount of water drawn from Bangpra reservoir shall not exceed the amount of water the company has reserved in the reservoir each year.
Private water source 15,000,000 cubic meters per year

Ans :   Main costs of raw water business include cost of electricity and depreciation which accounts for approximately 70% of total cost. The other 30% are cost of raw water, cost of payroll and cost of maintenance.

Ans :  On 16 June 2015, the Company issued 2,400 million baht unsubordinated and unsecured debentures without debenture holders’ representative to institutional and high net worth investors. Those debentures include 7 years debenture with total value of 1,200 million baht at 3.84 percent p.a. interest rate and 10 years debenture with total value of Baht 1,200 million at 4.18 percent p.a. interest rate. The fund from the debentures was used to repay the existing loan of Tabma and Prasae-Nongplalai projects

Ans : The main measures against water shortage include:

  1. to divert raw water from Prasae Reservoir to Nongplalai Reservoir so that there will be sufficient water in Bowin – Pluakdaeng and Chonburi area.
  2. to expedite the construction of Nongpalai - Nongkho Pipeline No. 2 in order to divert more water from Nongplalai Reservoir to Chonburi area.
  3. to source additional raw water from private ponds in Chonburi as a way to increase water supply in Chonburi and Chachoengsao.
  4. In addition, the company also develops Samnakbok water reserve pond and works closely with Thai Royal Irrigation Department and consumers to develop water management plan so that there will be sufficient amount of water for the whole year.

Ans :  Different raw water tariffs are set based on types of customers.

  • Type 1 : Household customers. This refers to anyone who buys raw water to consume within household or to produce tap water. This group of customers ranges from Provincial Waterworks Authority (PWA), government agencies/organizations, hospital and communities.
  • Type 2: Any industrial estates established by the Industrial Estate Authority of Thailand (IEAT), jointly managed industrial estates by IEAT and private company, and former water users who had been granted raw water allocation by IEAT, Department of Public Works and Town and Country Planning, or other government agencies before the establishment of East Water.
  • Type 3: Industrial Estates operated solely by private companies.
  • Type 4: Factories that locate outside industrial estates

Water tariff rate in 2016

User type Tariff Rate (Baht / cubic meter)
1. Household consumers 9.90
2. Industrial Estate Authorities of Thailand (IEAT), jointly managed industrial estates by IEAT and private company 11.00
3. Private Industrial Estates 12.00
4. Stand-alone Factories 13.00

Note :

  1. The tariff rate above is applicable to the customers who consistently buy raw water from East Water. If  customers stop buying water from Eastwater for over 2 consecutive months, or buy raw water less than 50% of the allocated volume or the agreed volume, the company has a right to terminate the contract or change the tariff rate as deemed appropriate.
  2. The Company reserves all rights to revise raw water tariff rate to reflect the actual cost of raw water management and the economic situation at that moment.

Ans : SCADA (Supervisory Control and Data Acquisition) is a computerized system that acquires data from remote devices such as valves, pump and transmitters etc. and sent these data to Control Center System.  This enables the company to monitor and control remotely the amount of water and pressure in pipelines as well as water level in the reserves, and to solve distribution problems round the clock. SCADA has helped the company to reduce water loss from 20% to 3% in three years

Ans : The company uses Hot Tapping / Wet Tapping technique when repairs or modifies pipelines. Hot Tapping / Wet Tapping is a mean to connecting a new pipe to an existing pipe without service interruption by using a drilling machine together with a tapping sleeve and tapping valves to create an opening in an operating pipe and to attach a new branch connection to that pipe. This technique allows the repair of damaged pipes or connection of a new pipe to an existing one by rerouting water through a temporary or new pipeline.