| Vendor | Spec | Unit | Price | Currency | Date |
| Dongying Hebang Chem | China national standards | MT | 1358.12 | USD | 20251211 |
| Dongying Hebang Chem | China national standards | MT | 1356.45 | USD | 20251209 |
| Dongying Hebang Chem | China national standards | MT | 1356.62 | USD | 20251208 |
| Dongying Hebang Chem | China national standards | MT | 1356.91 | USD | 20251205 |
| Dongying Hebang Chem | China national standards | MT | 1357.22 | USD | 20251204 |
| Dongying Hebang Chem | China national standards | MT | 1356.81 | USD | 20251203 |
| Dongying Hebang Chem | China national standards | MT | 1356.05 | USD | 20251202 |
| Dongying Hebang Chem | China national standards | MT | 1356.72 | USD | 20251201 |
| Dongying Hebang Chem | China national standards | MT | 1356.01 | USD | 20251126 |
| Dongying Hebang Chem | China national standards | MT | 1355.43 | USD | 20251125 |