| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1105.28 | USD | 20250713 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1105.28 | USD | 20250712 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1105.28 | USD | 20250711 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 958.38 | USD | 20250711 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 958.38 | USD | 20250711 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 957.91 | USD | 20250710 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 957.91 | USD | 20250710 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 957.49 | USD | 20250709 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 957.49 | USD | 20250709 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1104.37 | USD | 20250708 |