| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 436.79 | USD | 20251020 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 436.79 | USD | 20251020 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 436.79 | USD | 20251020 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 436.93 | USD | 20251018 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 436.93 | USD | 20251018 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 436.93 | USD | 20251018 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 436.93 | USD | 20251017 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 436.93 | USD | 20251017 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 436.93 | USD | 20251017 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 436.82 | USD | 20251016 |