| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1068.1 | USD | 20251211 |
| Sinopec | China national standards | MT | 1096.4 | USD | 20251211 |
| Shandong Yaoming Chem | China national standards | MT | 742.72 | USD | 20251211 |
| Sinopec | China national standards | MT | 728.57 | USD | 20251211 |
| Shandong Mingyu | China national standards | MT | 877.12 | USD | 20251211 |
| Shandong Chambroad | China national standards | MT | 735.65 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 1259.09 | USD | 20251211 |
| Sinopec | China national standards | MT | 1096.4 | USD | 20251211 |
| Shandong Jinwen Chem | China national standards | MT | 933.71 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 1068.1 | USD | 20251211 |