| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 379.74 | USD | 20251009 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 450.06 | USD | 20251009 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 379.74 | USD | 20251009 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 365.91 | USD | 20251008 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 365.91 | USD | 20251008 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 365.91 | USD | 20251007 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 450.36 | USD | 20251007 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 365.91 | USD | 20251007 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 365.91 | USD | 20251005 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 450.36 | USD | 20251005 |