| Vendor | Spec | Unit | Price | Currency | Date |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 790.07 | USD | 20251031 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 790.25 | USD | 20251030 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 790.34 | USD | 20251028 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 790.06 | USD | 20251027 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 789.53 | USD | 20251026 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 789.53 | USD | 20251025 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 789.53 | USD | 20251024 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 789.24 | USD | 20251022 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 789.51 | USD | 20251021 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 789.03 | USD | 20251020 |