| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 767.9 | USD | 20251020 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 767.9 | USD | 20251020 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 806.21 | USD | 20251018 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 806.21 | USD | 20251018 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 806.21 | USD | 20251017 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 806.21 | USD | 20251017 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 806.0 | USD | 20251016 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 805.69 | USD | 20251015 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 805.69 | USD | 20251015 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 805.4 | USD | 20251014 |