| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhiheng | China national standards | MT | 1128.91 | USD | 20251106 |
| Shandong Zhiheng | China national standards | MT | 1128.91 | USD | 20251106 |
| Shandong Zhiheng | China national standards | MT | 1171.24 | USD | 20251106 |
| Shandong Hongyang Chem | China national standards | MT | 1188.17 | USD | 20251106 |
| Shandong Zhiheng | China national standards | MT | 1170.65 | USD | 20251105 |
| Shandong Zhiheng | China national standards | MT | 1128.33 | USD | 20251105 |
| Shandong Zhiheng | China national standards | MT | 1128.33 | USD | 20251105 |
| Dongying HuataiChem | China national standards | MT | 1057.81 | USD | 20251105 |
| Dongying HuataiChem | China national standards | MT | 1057.81 | USD | 20251105 |
| Dongying HuataiChem | China national standards | MT | 1057.81 | USD | 20251105 |