| Vendor | Spec | Unit | Price | Currency | Date |
| Wanhua Chem | China national standards | MT | 1341.33 | USD | 20251114 |
| Dongying HuataiChem | China national standards | MT | 1073.07 | USD | 20251114 |
| Shandong Langchem | China national standards | MT | 1214.26 | USD | 20251114 |
| Shandong Aite Chem | China national standards | MT | 1143.66 | USD | 20251114 |
| Dongying HuataiChem | China national standards | MT | 1058.95 | USD | 20251114 |
| Dongying HuataiChem | China national standards | MT | 1058.95 | USD | 20251114 |
| Shandong Qiangsen Chem | China national standards | MT | 988.35 | USD | 20251114 |
| Shandong Aite Chem | China national standards | MT | 1270.74 | USD | 20251114 |
| Shandong Langchem | China national standards | MT | 1214.26 | USD | 20251114 |
| Shandong Aite Chem | China national standards | MT | 1143.66 | USD | 20251114 |