| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 365.9 | USD | 20250924 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 450.34 | USD | 20250924 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 450.34 | USD | 20250923 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 365.9 | USD | 20250923 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 365.65 | USD | 20250922 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 365.65 | USD | 20250922 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 450.03 | USD | 20250922 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 449.89 | USD | 20250920 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 449.89 | USD | 20250920 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 449.89 | USD | 20250920 |