| 339910 | Costume jewellery (including imitation stones and pearls), manufacturing |
| Cutlery, precious metal (except plated), manufacturing | |
| Engraving, chasing or etching precious metal flatware | |
| Flatware, precious metal (except plated), manufacturing | |
| Industrial diamonds, cut and polished, manufacturing | |
| Jewellers' findings, manufacturing | |
| Jewellery and silverware, metal embossing for the trade | |
| Jewellery engraving, chasing or etching for the trade | |
| Jewellery polishing for the trade, manufacturing | |
| Jewellery, made of precious metal or precious or semiprecious stones, manufacturing | |
| Lapidary work | |
| Medals, precious or semi-precious metal, manufacturing | |
| Minting of coins | |
| Pearls, drilling, sawing, or peeling of, manufacturing | |
| Pewter ware, manufacturing | |
| Precious stones, cutting and polishing | |
| Rings, jewellery, manufacturing | |
| Table cutlery, precious metal (except plated), manufacturing | |
| Table flatware, precious metal (except plated), manufacturing | |
| Trophies, precious metal (except plated), manufacturing |