| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 886.96 | USD | 20250908 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 943.28 | USD | 20250908 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 886.96 | USD | 20250908 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 886.52 | USD | 20250907 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 942.81 | USD | 20250906 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 886.52 | USD | 20250906 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 970.96 | USD | 20250906 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 886.52 | USD | 20250905 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 970.96 | USD | 20250905 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 942.81 | USD | 20250905 |