| Vendor | Spec | Unit | Price | Currency | Date |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 1758.36 | USD | 20250929 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 1756.8 | USD | 20250928 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 1756.8 | USD | 20250927 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 1756.8 | USD | 20250926 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 1759.15 | USD | 20250925 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 1759.15 | USD | 20250924 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 1759.15 | USD | 20250923 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 1757.94 | USD | 20250922 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 1757.4 | USD | 20250919 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 1758.46 | USD | 20250918 |