Covers :
1. Electrical and mechanical engineering
   - Contracting
   - Electrical fitting with water plumbing
   - Servicing
   - Sizeable companies with related services
   - Related educational institutes and government bureau/departments
2. Shipbuilding and ship repair
   - Shipyards and boatyards
   - Sizeable companies with related services
   - Related educational institutes and government bureau/departments
3. Gas
   - Gas supply
   - Gas fitting, installation and maintenance
   - Sizeable companies with related services
   - Related educational institutes and government bureau/departments
4. Aircraft maintenance companies