 
| Class | Class Name | 
|---|---|
| 31 | rose buds | 
| 31 | rose bushes | 
| 31 | rose cultivars | 
| 31 | rose cuttings | 
| 31 | rose plants | 
| 31 | rose roots | 
| 31 | rose seedlings | 
| 31 | rose seeds | 
| 31 | rose shrubs | 
| 31 | rose stems | 
| 31 | roses petals | 
| 31 | rough cork | 
| 31 | rough wood | 
| 31 | rye | 
| 31 | salmon, live | 
| 31 | salt for cattle | 
| 31 | sanded paper [litter] for pets | 
| 31 | saplings | 
| 31 | sardines, live | 
| 31 | sea-cucumbers, live | 
| 31 | seaweed, unprocessed, for human or animal consumption | 
| 31 | seed germ for botanical purposes | 
| 31 | seedlings | 
| 31 | seeds | 
| 31 | seeds, all being health food other than for medical use; all being for animals | 
| 31 | seeds for horticultural use | 
| 31 | seeds for planting | 
| 31 | seeds [grains] | 
| 31 | sesame (unprocessed -) | 
| 31 | shellfish for food [live] | 
| 31 | shellfish, live | 
| 31 | shrimp meal for animal feed | 
| 31 | shrimps [live] | 
| 31 | shrubs | 
| 31 | silkworm eggs | 
| 31 | silkworms | 
| 31 | sod | 
| 31 | soya beans, fresh | 
| 31 | spinach, fresh | 
| 31 | spiny lobsters, live | 
| 31 | squashes, fresh | 
| 31 | squid meal for animal feed | 
| 31 | stall food for animals | 
| 31 | straw [forage] | 
| 31 | straw litter | 
| 31 | straw mulch | 
| 31 | strengthening animal forage | 
| 31 | sugarcane | 
| 31 | tea leaves, unprocessed | 
| 31 | trees |