| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yuxuan Chemical Products Co., Ltd. | China national standards | MT | 710.25 | USD | 20251009 |
| Shandong Yuxuan Chemical Products Co., Ltd. | China national standards | MT | 710.72 | USD | 20250930 |
| Shandong Yuxuan Chemical Products Co., Ltd. | China national standards | MT | 710.38 | USD | 20250929 |
| Shandong Yuxuan Chemical Products Co., Ltd. | China national standards | MT | 709.75 | USD | 20250928 |
| Shandong Yuxuan Chemical Products Co., Ltd. | China national standards | MT | 709.75 | USD | 20250927 |
| Shandong Yuxuan Chemical Products Co., Ltd. | China national standards | MT | 709.75 | USD | 20250926 |
| Shandong Yuxuan Chemical Products Co., Ltd. | China national standards | MT | 710.7 | USD | 20250925 |
| Shandong Yuxuan Chemical Products Co., Ltd. | China national standards | MT | 710.7 | USD | 20250924 |
| Shandong Yuxuan Chemical Products Co., Ltd. | China national standards | MT | 710.7 | USD | 20250923 |
| Shandong Yuxuan Chemical Products Co., Ltd. | China national standards | MT | 710.21 | USD | 20250922 |