| Vendor | Spec | Unit | Price | Currency | Date |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 923.6 | USD | 20251023 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 918.91 | USD | 20251022 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 923.45 | USD | 20251021 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 929.93 | USD | 20251020 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 918.37 | USD | 20251015 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 922.26 | USD | 20251014 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 922.44 | USD | 20251013 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 931.76 | USD | 20251011 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 931.76 | USD | 20251010 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 945.84 | USD | 20251010 |