| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1098.96 | USD | 20250607 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1098.96 | USD | 20250606 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 959.85 | USD | 20250606 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 959.85 | USD | 20250606 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1098.96 | USD | 20250605 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1098.96 | USD | 20250604 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 1210.54 | USD | 20250603 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 1210.54 | USD | 20250603 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1099.22 | USD | 20250603 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1099.54 | USD | 20250602 |