| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 1055.27 | USD | 20250901 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 1125.62 | USD | 20250901 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1013.66 | USD | 20250831 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1013.66 | USD | 20250830 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 985.5 | USD | 20250830 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 985.5 | USD | 20250830 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 999.58 | USD | 20250830 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 1055.89 | USD | 20250829 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1013.66 | USD | 20250829 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1105.17 | USD | 20250829 |