| Vendor | Spec | Unit | Price | Currency | Date |
| Sinopec | China national standards | MT | 1086.19 | USD | 20250813 |
| Shandong Langchem | China national standards | MT | 1058.16 | USD | 20250813 |
| Shandong Langchem | China national standards | MT | 967.06 | USD | 20250813 |
| Sinopec | China national standards | MT | 1093.2 | USD | 20250813 |
| Sinopec | China national standards | MT | 1093.2 | USD | 20250813 |
| Shandong Mengkanda Chem | China national standards | MT | 840.12 | USD | 20250812 |
| Shandong Langchem | China national standards | MT | 966.14 | USD | 20250812 |
| Shandong Langchem | China national standards | MT | 1057.16 | USD | 20250812 |
| Sinopec | China national standards | MT | 1085.16 | USD | 20250812 |
| Qingdao Shengze Chem | China national standards | MT | 826.12 | USD | 20250812 |