| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 908.51 | USD | 20251015 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 908.51 | USD | 20251015 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 915.22 | USD | 20251014 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 915.4 | USD | 20251013 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 915.4 | USD | 20251013 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 933.17 | USD | 20251011 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 933.17 | USD | 20251011 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 933.17 | USD | 20251010 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 933.17 | USD | 20251010 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 932.46 | USD | 20251009 |