| Vendor | Spec | Unit | Price | Currency | Date |
| Liaocheng Yuanze Chemical Co., Ltd. | China national standards | MT | 1013.3 | USD | 20251008 |
| Liaocheng Yuanze Chemical Co., Ltd. | China national standards | MT | 1013.3 | USD | 20251007 |
| Liaocheng Yuanze Chemical Co., Ltd. | China national standards | MT | 1034.41 | USD | 20251005 |
| Liaocheng Yuanze Chemical Co., Ltd. | China national standards | MT | 1034.41 | USD | 20251004 |
| Liaocheng Yuanze Chemical Co., Ltd. | China national standards | MT | 1034.41 | USD | 20251003 |
| Liaocheng Yuanze Chemical Co., Ltd. | China national standards | MT | 1034.41 | USD | 20251002 |
| Liaocheng Yuanze Chemical Co., Ltd. | China national standards | MT | 1034.41 | USD | 20251001 |
| Liaocheng Yuanze Chemical Co., Ltd. | China national standards | MT | 1033.92 | USD | 20250929 |
| Liaocheng Yuanze Chemical Co., Ltd. | China national standards | MT | 1033.0 | USD | 20250928 |
| Liaocheng Yuanze Chemical Co., Ltd. | China national standards | MT | 1033.0 | USD | 20250927 |