| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yuxuan Chemical Products Co., Ltd. | China national standards | MT | 506.13 | USD | 20250919 |
| Shandong Yuxuan Chemical Products Co., Ltd. | China national standards | MT | 506.44 | USD | 20250918 |
| Shandong Yuxuan Chemical Products Co., Ltd. | China national standards | MT | 1139.48 | USD | 20250918 |
| Shandong Yuxuan Chemical Products Co., Ltd. | 90% | MT | 562.71 | USD | 20250918 |