| Vendor | Spec | Unit | Price | Currency | Date |
| Liaocheng Yuanze Chem | China national standards | MT | 861.14 | USD | 20251107 |
| Liaocheng Yuanze Chem | China national standards | MT | 875.26 | USD | 20251107 |
| Luxi Chem | China national standards | MT | 889.38 | USD | 20251107 |
| Shandong Hongyang Chem | China national standards | MT | 959.96 | USD | 20251107 |
| Luxi Chem | China national standards | MT | 762.01 | USD | 20251106 |
| Shandong Energy | China national standards | MT | 790.23 | USD | 20251106 |
| Shandong Yeyang Chem | China national standards | MT | 776.12 | USD | 20251106 |
| CNPC | China national standards | MT | 804.35 | USD | 20251106 |
| Sinopec | China national standards | MT | 776.12 | USD | 20251106 |
| Wanhua Chem | China national standards | MT | 762.01 | USD | 20251106 |