| Vendor | Spec | Unit | Price | Currency | Date |
| Changzhou Jiaye Chemical Co., Ltd. | China national standards | MT | 1665.09 | USD | 20251103 |
| Changzhou Jiaye Chemical Co., Ltd. | China national standards | MT | 1665.66 | USD | 20251029 |
| Changzhou Jiaye Chemical Co., Ltd. | China national standards | MT | 1663.61 | USD | 20251021 |
| Changzhou Jiaye Chemical Co., Ltd. | China national standards | MT | 1661.81 | USD | 20251013 |
| Changzhou Jiaye Chemical Co., Ltd. | China national standards | MT | 1659.98 | USD | 20250918 |