| Vendor | Spec | Unit | Price | Currency | Date |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 790.22 | USD | 20251111 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 790.34 | USD | 20251110 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 790.56 | USD | 20251109 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 790.56 | USD | 20251107 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 790.23 | USD | 20251106 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 789.83 | USD | 20251105 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 789.83 | USD | 20251105 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 790.01 | USD | 20251104 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 790.21 | USD | 20251103 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 790.07 | USD | 20251101 |