| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1069.08 | USD | 20250902 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1069.34 | USD | 20250901 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 963.81 | USD | 20250901 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 963.81 | USD | 20250901 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1112.21 | USD | 20250831 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1112.21 | USD | 20250830 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 964.38 | USD | 20250829 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 964.38 | USD | 20250829 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1112.21 | USD | 20250829 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 963.93 | USD | 20250828 |