| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yuxuan Chem | China national standards | MT | 1269.9 | USD | 20251119 |
| Shandong Jiaen Chem | China national standards | MT | 1181.0 | USD | 20251119 |
| Dongying HuataiChem | China national standards | MT | 1072.36 | USD | 20251119 |
| Shandong Yeyang Chem | China national standards | MT | 1241.68 | USD | 20251119 |
| Shandong Langchem | China national standards | MT | 1173.95 | USD | 20251119 |
| Shandong Langchem | China national standards | MT | 1213.46 | USD | 20251119 |
| Hangjin Tech | China national standards | MT | 1015.92 | USD | 20251119 |
| Wanhua Chem | China national standards | MT | 1340.44 | USD | 20251119 |
| Shandong Zhiheng | China national standards | MT | 1128.8 | USD | 20251119 |
| Shandong Langchem | China national standards | MT | 1178.18 | USD | 20251119 |