| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1101.11 | USD | 20250617 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 961.15 | USD | 20250616 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 961.15 | USD | 20250616 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1100.45 | USD | 20250616 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1098.96 | USD | 20250615 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1098.96 | USD | 20250614 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 959.85 | USD | 20250613 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 959.85 | USD | 20250613 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1098.96 | USD | 20250613 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1098.96 | USD | 20250612 |