| Vendor | Spec | Unit | Price | Currency | Date |
| Dongying Hebang Chem | China national standards | MT | 1355.24 | USD | 20251107 |
| Dongying Hebang Chem | China national standards | MT | 1354.69 | USD | 20251106 |
| Dongying Hebang Chem | China national standards | MT | 1354.0 | USD | 20251105 |
| Dongying Hebang Chem | China national standards | MT | 1354.31 | USD | 20251104 |
| Dongying Hebang Chem | China national standards | MT | 1354.65 | USD | 20251103 |
| Dongying Hebang Chem | China national standards | MT | 1354.71 | USD | 20251030 |
| Dongying Hebang Chem | China national standards | MT | 1355.11 | USD | 20251029 |
| Dongying Hebang Chem | China national standards | MT | 1354.38 | USD | 20251027 |
| Dongying Hebang Chem | China national standards | MT | 1353.49 | USD | 20251024 |
| Dongying Hebang Chem | China national standards | MT | 1353.68 | USD | 20251023 |