| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Shuntian Chem | China national standards | MT | 330.12 | USD | 20260605 |
| Shandong Shuntian Chem | China national standards | MT | USD | 20260525 | |
| Shandong Shuntian Chem | China national standards | MT | USD | 20260515 | |
| Shandong Shuntian Chem | China national standards | MT | USD | 20260514 | |
| Shandong Shuntian Chem | China national standards | MT | USD | 20260513 | |
| Shandong Shuntian Chem | China national standards | MT | USD | 20260511 | |
| Shandong Shuntian Chem | China national standards | MT | USD | 20260424 | |
| Shandong Shuntian Chem | China national standards | MT | USD | 20260423 | |
| Shandong Shuntian Chem | China national standards | MT | USD | 20260422 | |
| Shandong Shuntian Chem | China national standards | MT | USD | 20260421 |