| 4321018 | Advertising Sign Boards Installation | Contracting and building works | Commercial | |
| 4322002 | Plumbing & Sanitary Installation | Contracting and building works | Professional | |
| 4322003 | Fire Fighting & Safety Equipment Installation | Contracting and building works | Professional | |
| 4322005 | Air-Condition, Ventilations & Air Filtration Systems Installation & Maintenance | Contracting and building works | Professional | |
| 4322008 | Electromechanical Equipment Installation & Maintenance | Contracting and building works | Professional | |
| 4322009 | Central Gas Distribution Networks Contracting | Contracting and building works | Commercial | |
| 4322011 | Solar Energy Systems Installation | Contracting and building works | Professional | |
| 4322101 | Ventilation & Smoke Control Equipment Installation | Contracting and building works | Professional | |
| 4322102 | Electromechanical Works Contracting | Contracting and building works | Commercial | |
| 4329101 | Lifts & Escalators Contracting | Contracting and building works | Professional | |
| 4329104 | Airports Ground Support Equipment Installation & Maintenance | Contracting and building works | Professional | |
| 4329901 | Building Maintenance | Building maintainance, sureillance and cleaning services | Professional | |
| 4329904 | Electrical Fittings & Fixtures Repairing & Maintenance | Contracting and building works | Professional | |
| 4329906 | Sanitary Installation & Pipes Repairing | Contracting and building works | Professional | |
| 4329915 | Swimming Pools Maintenance | Contracting and building works | Professional | |
| 4329916 | Historical Sites Restoration | Contracting and building works | Professional | |
| 4330003 | Painting Contracting | Contracting and building works | Professional | |
| 4330005 | Carpentry & wood Flooring Works | Contracting and building works | Professional | |
| 4330007 | Kitchens Installation | Contracting and building works | Professional | |
| 4330011 | Steel Products Installation & Maintenance | Contracting and building works | Professional | |
