| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhenkun | China national standards | MT | 990.3 | USD | 20251211 |
| Shandong Zhenkun | China national standards | MT | 325.38 | USD | 20251211 |
| Shandong Zhenkun | Industrial Grade | MT | 431.49 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 407.44 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 407.44 | USD | 20251211 |
| Shandong Langchem | 90% | MT | 452.71 | USD | 20251211 |
| Shandong Langchem | 90% | MT | 452.71 | USD | 20251211 |
| Shandong Jinwen Chem | China national standards | MT | 636.62 | USD | 20251211 |
| Shandong Jinwen Chem | China national standards | MT | 636.62 | USD | 20251211 |
| Shandong Jinwen Chem | China national standards | MT | 636.62 | USD | 20251211 |