| Code | Description | Code scheme | ||
|---|---|---|---|---|
| 25113 | Manufacture of pipes and tubes | Singapore Standard Industrial Classification (SSIC) 2015 | details | |
| 25997 | Manufacture of metal precision components | Singapore Standard Industrial Classification (SSIC) 2015 | details | |
| 71129 | Engineering design and consultancy activities n.e.c. | Singapore Standard Industrial Classification (SSIC) 2015 | details |