| Code | Description | Code scheme | ||
|---|---|---|---|---|
| 28191 | Manufacture and repair of refrigerating, air-conditioning and ventilating machinery and equipment except household refrigerators | Singapore Standard Industrial Classification (SSIC) 2015 | details | |
| 43220 | Plumbing, heating (non-electric) and air-conditioning | Singapore Standard Industrial Classification (SSIC) 2015 | details |