| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chem | China national standards | MT | 4951.48 | USD | 20251211 |
| Shandong Hongyang Chem | China national standards | MT | 4946.79 | USD | 20251210 |
| Shandong Hongyang Chem | China national standards | MT | 4945.39 | USD | 20251209 |
| Shandong Hongyang Chem | China national standards | MT | 4946.02 | USD | 20251208 |
| Shandong Hongyang Chem | China national standards | MT | 4947.07 | USD | 20251205 |
| Shandong Hongyang Chem | China national standards | MT | 4948.19 | USD | 20251204 |
| Shandong Hongyang Chem | China national standards | MT | 4946.72 | USD | 20251203 |
| Shandong Hongyang Chem | China national standards | MT | 4943.92 | USD | 20251202 |
| Shandong Hongyang Chem | China national standards | MT | 4946.37 | USD | 20251201 |
| Shandong Hongyang Chem | China national standards | MT | 4944.27 | USD | 20251128 |