| Vendor | Spec | Unit | Price | Currency | Date |
| Liaocheng Yuanze Chemical Co., Ltd. | China national standards | MT | 871.94 | USD | 20250922 |
| Liaocheng Yuanze Chemical Co., Ltd. | China national standards | MT | 857.87 | USD | 20250922 |
| Liaocheng Yuanze Chemical Co., Ltd. | China national standards | MT | 857.61 | USD | 20250921 |
| Liaocheng Yuanze Chemical Co., Ltd. | China national standards | MT | 871.67 | USD | 20250921 |
| Liaocheng Yuanze Chemical Co., Ltd. | China national standards | MT | 871.67 | USD | 20250920 |
| Liaocheng Yuanze Chemical Co., Ltd. | China national standards | MT | 857.61 | USD | 20250920 |
| Liaocheng Yuanze Chemical Co., Ltd. | China national standards | MT | 857.61 | USD | 20250919 |
| Liaocheng Yuanze Chemical Co., Ltd. | China national standards | MT | 872.2 | USD | 20250918 |
| Liaocheng Yuanze Chemical Co., Ltd. | China national standards | MT | 858.13 | USD | 20250918 |