| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chem | China national standards | MT | 4938.9 | USD | 20251111 |
| Shandong Hongyang Chem | China national standards | MT | 4939.6 | USD | 20251110 |
| Shandong Hongyang Chem | China national standards | MT | 4940.99 | USD | 20251107 |
| Shandong Hongyang Chem | China national standards | MT | 4938.97 | USD | 20251106 |
| Shandong Hongyang Chem | China national standards | MT | 4936.46 | USD | 20251105 |
| Shandong Hongyang Chem | China national standards | MT | 4937.57 | USD | 20251104 |
| Shandong Hongyang Chem | China national standards | MT | 4938.83 | USD | 20251103 |
| Shandong Hongyang Chem | China national standards | MT | 4937.92 | USD | 20251031 |
| Shandong Hongyang Chem | China national standards | MT | 4939.04 | USD | 20251030 |
| Shandong Hongyang Chem | China national standards | MT | 4940.5 | USD | 20251029 |