Categories Suppliers Specialist Contractors
Air-conditioning Installation   X
Audio Electronics Installation   X
Broadcast Reception Installation   X
Burglar Alarm and Security Installation   X
Catering Equipment Installation   X
Design, Manufacture and Installation of Glass (or Fibre) Reinforced Plastic Units for Highway Structures   X
Diesel Generator Installation   X
Electrical and Mechanical Installation for Sewage Treatment and Screening Plant   X
Electrical Installation   X
Electronic Timing and Display Installation   X
Fabrication of Unfired Pressure Vessels   X
Fire Service Installation   X
Fountain Installation   X
Ground Investigation Field Work   X
Industrial Type Electrical Installation   X
Land Piling   X
Land, Engineering and Hydrographic Survey Services   X
Landscaping   X
Landslip Preventive/Remedial Works to Slopes/Retaining Walls   X
Lift, Escalator and Passenger Conveyor Installation   X
Liquefied Petroleum Gas Installation   X
Low Voltage Cubicle Switchboard Installation   X
Mechanical Handling and Lifting Installation   X
Mechanical Plant and Equipment Installation   X
Plumbing Installation    X
Prestressed Concrete Works for Highway Structures X X
Radio Electronics Installation   X
Repair and Restoration of Historic Buildings   X
Road Marking   X
Soil and Rock Testing   X
Specialized Operations for Highway Structures   X
Steam and Compressed Air Installation   X
Structural Steelwork   X
Supply and Installation of Bearings for Highway Structures   X
Supply and Installation of Expansion Joints for Highway Structures   X
Supply and Installation of Pumpsets and Associated Pipework   X
Supply and Installation of Water Treatment Plant   X
Supply of Bituminous Pavement Materials and Construction of Special Bituminous Surfacing X X
Survey of Government Land Pressure Receivers subject to Steam and Air Pressure (but excluding Steam Boilers)   X
Survey of Government Land Steam Boilers   X
Survey of Lifting Appliances and Lifting Gear   X
Swimming Pool Water Treatment Installation   X
Transparent Panels for Noise Barriers on Highways X  
Turn-key Interior Design and Fitting-out Works   X
Uninterruptible Power Supply Installation   X
Video Electronics Installation   X

Class and Group Description

Air-conditioning Installation,
Group I - Contracts/Sub-contracts up to $9.2 million
Group II - Contracts/Sub-contracts of unlimited value

Electrical Installation,
Group I - Contracts/Sub-contracts up to $4.6 million
Group II - Contracts/Sub-contracts up to $11.4 million
Group III - Contracts/Sub-contracts of unlimited value

Fire Service Installation,
Group I - Contracts/Sub-contracts up to $4.6 million
Group II - Contracts/Sub-contracts of unlimited value

Ground Investigation Field Work,
Group I - Contracts/Sub-contracts up to $3.7 million
Group II - Contracts/Sub-contracts of unlimited value

Land Piling,
Group I - Contracts/Sub-contracts up to $5.5 million
Group II - Contracts/Sub-contracts of unlimited value

Landscaping,
Class I - General Landscape work
Class II - Hydroseeding
Group I - Contracts/Sub-contracts up to $3.8 million
Group II - Contracts/Sub-contracts of unlimited value

Mechanical Plant and Equipment Installation,
Group I - Contracts/Sub-contracts up to $1.8 million
Group II - Contracts/Sub-contracts of unlimited value

Plumbing Installation,
Group I - Contracts/Sub-contracts up to $4.6 million
Group II - Contracts/Sub-contracts of unlimited value

Prestressed Concrete Works for Highway Structures,
Class I - Supply and Installation of Prestressing Systems
Class II - Supply of Prestressed Concrete Units

Specialized Operations for Highway Structures,
Class I ( Deleted with effect from 17 March 2023 )
Class II - Waterproofing of concrete surfaces
Class III - Repair of cracked concrete by resin injection
Class IV - Non-destructive testing of welds
Class V - Hot dip galvanising

Supply and Installation of Bearings for Highway Structures,
Class I - Mechanical bearings
Class II - Elastomeric bearings

Turn-key Interior Design and Fitting-out Works,
Group I - Eligible to be awarded one contract as a Trade Test
Group II - Eligible to be awarded more than one contract at any one time

Note:  Suppliers/specialist contractors in the List, unless suspended, may tender for public works contracts only in the works categories, classes and groups for which they are approved.