| Vendor | Spec | Unit | Price | Currency | Date |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 875.97 | USD | 20251127 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 875.76 | USD | 20251126 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 875.38 | USD | 20251125 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 875.13 | USD | 20251124 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 874.78 | USD | 20251121 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 875.01 | USD | 20251118 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 875.51 | USD | 20251117 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 875.4 | USD | 20251114 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 875.3 | USD | 20251112 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 874.89 | USD | 20251111 |