
| 化學式/品名 | 純度 規格 | 形狀 |
| Praseodymium (Pr) | 99.5% ~ 99.9% | Powder, Granule, Custom-made |
| Rhenium (Re) | 99.9% ~ 99.99% | Powder, Granule, Custom-made |
| Rhodium (Rh) | 99.9% ~ 99.99% | Powder, Granule, Custom-made |
| Ruthenium (Ru) | 99.9% ~ 99.95% | Powder, Granule, Custom-made |
| Samarium (Sm) | 99.9% ~ 99.99% | Powder, Granule, Custom-made |
| Scandium (Sc) | 99.9% ~ 99.99% | Powder, Granule, Custom-made |
| Selenium (Se) | 99.9% ~ 99.999% | Powder, Granule, Custom-made |
| Silicon (Si) | 99.9% ~ 99.999% | Powder, Granule, Custom-made |
| Silver (Ag) | 99.99% | Powder, Granule, Custom-made |