| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 711.54 | USD | 20251020 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 711.54 | USD | 20251020 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 690.64 | USD | 20251018 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 690.64 | USD | 20251018 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 690.64 | USD | 20251017 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 690.64 | USD | 20251017 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 690.45 | USD | 20251016 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 690.45 | USD | 20251016 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 690.19 | USD | 20251015 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 690.19 | USD | 20251015 |