| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 436.49 | USD | 20251014 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 422.49 | USD | 20251013 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 436.58 | USD | 20251013 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 422.49 | USD | 20251013 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 436.32 | USD | 20251011 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 408.17 | USD | 20251011 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 408.17 | USD | 20251011 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 394.1 | USD | 20251010 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 394.1 | USD | 20251010 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 436.32 | USD | 20251010 |