| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhenkun | China national standards | MT | 1453.16 | USD | 20251031 |
| Shandong Dongyue | China national standards | MT | 1834.5 | USD | 20251030 |
| Liaocheng Yuanze Chem | China national standards | MT | 1538.16 | USD | 20251030 |
| Shandong Yuxuan Chem | China national standards | MT | 1608.72 | USD | 20251030 |
| Shandong Hongyang Chem | China national standards | MT | 1905.06 | USD | 20251030 |
| Shandong Zhenkun | China national standards | MT | 1453.49 | USD | 20251030 |
| Shandong Yuxuan Chem | China national standards | MT | 1609.19 | USD | 20251029 |
| Shandong Hongyang Chem | China national standards | MT | 1905.62 | USD | 20251029 |
| Shandong Yuxuan Chem | China national standards | MT | 1608.9 | USD | 20251028 |
| Shandong Zhenkun | China national standards | MT | 1453.65 | USD | 20251028 |