| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chem | China national standards | MT | 932.74 | USD | 20251201 |
| Shandong Jinwen Chem | China national standards | MT | 932.74 | USD | 20251201 |
| Shandong Jinwen Chem | China national standards | MT | 932.74 | USD | 20251201 |
| Derun Chem | China national standards | MT | 1116.47 | USD | 20251201 |
| Shandong Jinwen Chem | China national standards | MT | 932.74 | USD | 20251201 |
| Sinopec | China national standards | MT | 932.74 | USD | 20251201 |
| Shandong Dongming Petro | China national standards | MT | 932.74 | USD | 20251201 |
| Zhenghe | China national standards | MT | 932.74 | USD | 20251201 |
| Shandong Langchem | China national standards | MT | 1067.0 | USD | 20251201 |
| Shandong Langchem | China national standards | MT | 975.14 | USD | 20251201 |