| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 490.32 | USD | 20250809 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 560.37 | USD | 20250809 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 490.32 | USD | 20250808 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 560.37 | USD | 20250808 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 560.66 | USD | 20250807 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 567.66 | USD | 20250807 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 490.57 | USD | 20250807 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 560.15 | USD | 20250806 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 490.13 | USD | 20250806 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 560.49 | USD | 20250805 |