| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinling Chem | China national standards | MT | 1273.24 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 1181.28 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 1216.65 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 1202.5 | USD | 20251211 |
| Shandong Yeyang Chem | China national standards | MT | 1244.94 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 1177.04 | USD | 20251211 |
| Shandong Hongyang Chem | China national standards | MT | 1124.69 | USD | 20251211 |
| Dongying HuataiChem | China national standards | MT | 1103.47 | USD | 20251211 |
| Dongying HuataiChem | China national standards | MT | 1103.47 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 1177.04 | USD | 20251211 |