| Vendor | Spec | Unit | Price | Currency | Date |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 875.01 | USD | 20251110 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 875.26 | USD | 20251109 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 875.26 | USD | 20251107 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 874.9 | USD | 20251106 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 874.46 | USD | 20251105 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 874.46 | USD | 20251105 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 874.66 | USD | 20251104 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 874.88 | USD | 20251103 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 874.72 | USD | 20251101 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 874.72 | USD | 20251031 |