| Vendor | Spec | Unit | Price | Currency | Date |
| Dongying HuataiChem | China national standards | MT | 1058.13 | USD | 20251031 |
| Dongying HuataiChem | China national standards | MT | 1058.13 | USD | 20251031 |
| Qingdao Chengxin Chem | China national standards | MT | 1072.23 | USD | 20251031 |
| Shandong Junfeng | China national standards | MT | 1199.21 | USD | 20251031 |
| Shandong Langchem | China national standards | MT | 1213.59 | USD | 20251030 |
| Shandong Langchem | China national standards | MT | 1174.08 | USD | 20251030 |
| Shandong Langchem | China national standards | MT | 1213.59 | USD | 20251030 |
| Shandong Langchem | China national standards | MT | 1178.31 | USD | 20251030 |
| Shandong Yeyang Chem | China national standards | MT | 1241.82 | USD | 20251030 |
| Shandong Langchem | China national standards | MT | 1199.48 | USD | 20251030 |