| Buildings |
Group C |
| Roads and Drainage |
Group C |
| Site Formation |
Group C |
| Waterworks |
Group C |
| Port Works |
Group C on Probation |
| Air-conditioning Installation |
Group II on Probation |
| Electrical Installation |
Group III |
| Fire Service Installation |
Group II |
| Industrial Type Electrical Installation |
|
| Land Piling: |
|
| ⋅ Hand-dug Caissons |
Group I |
| ⋅ Steel "H" Piles |
Group II |
| ⋅ Precast Prestressed Tubular Piles |
Group II |
| ⋅ Large Diameter Bored Piles |
Group II |
| ⋅ Large Diameter Bored Piles (with Bell-out) |
Group II |
| ⋅ Rock-socketed Steel H-pile in Pre-bored Hole |
Group II |
| Land, Engineering and Hydrographic Survey Services |
|
| Landslip Preventive/ Remedial Works to Slopes/ Retaining Walls |
|
| Prestressed Concrete Works for Highway Structures |
Class I |
| Plumbing Installation |
Group II on Probation |
| Structural Steelwork |
|
| Registered General Building Contractors |
|
| Registered Specialist Contractors for the following categories: |
|
| ⋅ Site Formation Works |
|
| ⋅ Foundation Works |
|
| ⋅ Ventilation Works |
|
| ⋅ Demolition Works |
|
| Registered Electrical Contractors |
|
| Fire Service Installation Contractors |
Classes 1 & 2 |
| Building (Maintenance) |
Group M2 |
| Building (New Works) |
Group NW2 |
| Electrical |
|
| Large Diameter Bored Piling |
|
| Percussive Piling |
|
