Harbour Area Treatment Scheme (HATS) Stage 1

Project Overview

Contract Nature Companies

SSDS - Site Investigation & Engineering Studies

AB2H Consultants


SSDS Stage I - Principal Collection & Treatment System (Design & Construction)

Montgomery Watson Harza Hong Kong Ltd


Site facilities for RSS

Tai Hung (Eng & Builders) Ltd


Production shaft and pumping station foundation

Skanska/Shui On/Balfour Beatty JV


Diaphragm wall for Stonecutters Island main pumping station

Leighton Contracts (Asia) Ltd


Pile driving for sedimentation tanks at Stonecutters Island

Franki Contractors Ltd


Transfer system (Chai Wan and Tseung Kwan O to Kwun Tong)

Campenon Bernard/Maeda JV


Transfer system (Kwun Tong and Kwai Chung to Stonecutters Island)

Campenon Bernard/Maeda JV


Stonecutters Island STW Sedimentation Tanks - Civil Works

China State Construction Engg Corporation


Stonecutters Island STW Buildings Main P/S and site development

Aoki Corporation


Sludge transfer facilities and supply of sludge containers

Zen Pacific Civil Contractors Ltd


Stage I Outfall

P Holzmann/Franki/ Dredging International JV


Upgrading of existing PTWs

Chevalier Biwater JV


Sludge treatment facilities

Constain Bldg & Civil Engg Ltd


Stonecutters Island STW chemical dosing facilities

Kenworth Engg Ltd/ATAL Engg Ltd


Pumping station (E&M)

Torishima Pump Mfg Co Ltd


Stonecutters Island STW sedimentation tanks E&M equipment

ATAL Engg Ltd


Maintenance and security of existing tunnel works

Skanska International Civil Engg AB


Completion works for transfer system from Chai Wan to Kwun Tong & from Tseung Kwan O to Kwun Tong



Completion works for transfer system from Kwun Tong to Stonecutters Island

Gammon/Kvaerner JV


Completion works for transfer system from Kwai Chung to Stonecutters Island

Skanska International Civil Engg AB



For further information, you can refer to the following links:

Stonecutters Island Sewage Treatment Works

Deep Tunnel Sewage Conveyance Network

Development of HATS Stage 2