| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 830.34 | USD | 20251007 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 830.34 | USD | 20251005 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 830.34 | USD | 20251005 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 830.34 | USD | 20251004 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 829.95 | USD | 20250929 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 829.95 | USD | 20250929 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 829.21 | USD | 20250927 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 829.21 | USD | 20250927 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 829.21 | USD | 20250926 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 830.32 | USD | 20250925 |