| Vendor | Spec | Unit | Price | Currency | Date |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 763.26 | USD | 20251207 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 763.26 | USD | 20251206 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 763.26 | USD | 20251205 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 763.43 | USD | 20251204 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 763.21 | USD | 20251203 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 762.78 | USD | 20251202 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 763.15 | USD | 20251201 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 762.83 | USD | 20251129 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 762.94 | USD | 20251127 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 762.75 | USD | 20251126 |