| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 886.0 | USD | 20250922 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 886.0 | USD | 20250922 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1265.72 | USD | 20250922 |
| Shandong Daoqin Chemical Co., Ltd. | China national standards | MT | 984.45 | USD | 20250922 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 899.79 | USD | 20250921 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 913.85 | USD | 20250921 |
| Shandong Daoqin Chemical Co., Ltd. | China national standards | MT | 984.14 | USD | 20250921 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 871.67 | USD | 20250920 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 871.67 | USD | 20250920 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 885.73 | USD | 20250920 |