| Vendor | Spec | Unit | Price | Currency | Date |
| Shanghai Guoke | China national standards | MT | 459.78 | USD | 20251211 |
| Luxi Chem | China national standards | MT | 304.16 | USD | 20251211 |
| Shandong Zhenkun | China national standards | MT | 304.16 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 360.75 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 360.75 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 360.75 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 381.97 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 353.68 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 381.97 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 353.68 | USD | 20251211 |