| Vendor | Spec | Unit | Price | Currency | Date |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 913.54 | USD | 20250927 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 913.54 | USD | 20250926 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 914.76 | USD | 20250925 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 914.76 | USD | 20250924 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 914.76 | USD | 20250923 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 914.13 | USD | 20250922 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 913.85 | USD | 20250919 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 914.4 | USD | 20250918 |