Tonga Water Board

logo-tonga-waterBoard of Directors

Mr. Carl Sanft                       

Position         Chairperson  

Expiry Date    


Dr. Nailasikau Halatuituia              

Position         Board Member  

Expiry Date    


Ms. Fuiva Kavaliku              

Position         Board Member  

Expiry Date    


Mr. Sione Havea Taione                

Position         Board Member  

Expiry Date    


Mr. ‘Aisake Tu’iono                         

Position         Board Member  

Expiry Date


Tonga Water Board is part of the Utilities group and its board of directors are shared with Tonga Power Limited and Waste Authority Limited.

The Tonga Water Board (TWB) was established under the Tonga Water Board Act 2000 (TWB Act): the functions of the Board are set out in Section 5 of the Act and include to provide water supply services for domestic, stock, commercial, recreational, environmental and other beneficial uses in any area which it may be appointed to in the Act or Regulations.

The TWB Act requires the SOE to provide its services efficiently and economically and to exercise its powers in accordance with the economic, social and environmental policies of the Government; and sound commercial practices, including the need to ensure that its revenues are sufficient to provide for all depreciation, amortization of interest costs; for all operational and maintenance costs and to provide a reasonable return on investment.

TWB is responsible for the provision of water on Tongatapu and parts of the Vava’u and Ha’apai groups and on the island of ‘Eua. Residential and commercial connections on Tongatapu are metered. The water is supplied from ground bores and must be pumped around the island due to the island’s low elevation: parts of Tongatapu are below sea level.

TWB paid a dividend of $T1 million for the 2015 financial year.

The TWB also has powers as a regulator set out in the TWB Act.

Vision and Mission


“Our priority is to provide a reliable, safe and clean water supply twenty-four hours and seven days a week.”


“To achieve the maximum satisfaction of customers through the services we provide and in accordance with the Public Enterprise Act as amended in 2010”.

Financial Highlights

Audited Financial Highlights (T$’000) 2013 2014 2015 2016 2017 5-yr Average
Revenue 6,985 7,080 7,287 7,461 8,135 7,390
Net Profit After Tax 1,077 1,013 1,381 1,374 1,248 1,219
CSO payments
Total Assets 18,524 17,904 18,088 16,359 15,020 17,179
Total Liabilities 631 1,885 13,795 11,405 11,041 7,751
Shareholders’ Funds 17,893 3,844 4,293 5,059 3,988 7,015
Avg. ROE % 6% 6% 34% 29% 28% 20%
Avg. ROA % 6% 6% 8% 8% 8% 7%
Asset Utilization 38% 40% 40% 46% 54% 43%
Cash / Current liabilities 1.31 0.79 1.14 1.17 0.56 0.99

Important Documents