| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhiheng | China national standards | MT | 1128.59 | USD | 20251104 |
| Dongying HuataiChem | China national standards | MT | 1058.05 | USD | 20251104 |
| Shandong Xima | China national standards | MT | 959.3 | USD | 20251104 |
| Shandong Qiangsen Chem | China national standards | MT | 987.51 | USD | 20251104 |
| Befar | China national standards | MT | 1093.32 | USD | 20251104 |
| Shandong Yihe Chem | China national standards | MT | 1058.05 | USD | 20251104 |
| Shandong Yihe Chem | China national standards | MT | 987.51 | USD | 20251104 |
| Wanhua Chem | China national standards | MT | 1340.2 | USD | 20251104 |
| Shandong Langchem | China national standards | MT | 1199.13 | USD | 20251104 |
| Shandong Langchem | China national standards | MT | 1177.96 | USD | 20251104 |