| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 563.23 | USD | 20250913 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 492.83 | USD | 20250912 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 478.75 | USD | 20250912 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 492.83 | USD | 20250912 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 563.23 | USD | 20250912 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 478.64 | USD | 20250911 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 492.72 | USD | 20250911 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 563.11 | USD | 20250911 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 562.89 | USD | 20250910 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 478.46 | USD | 20250910 |