| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1106.89 | USD | 20250816 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1106.89 | USD | 20250815 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1107.42 | USD | 20250814 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1107.22 | USD | 20250813 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1106.16 | USD | 20250812 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1106.37 | USD | 20250811 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1106.72 | USD | 20250808 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1107.3 | USD | 20250807 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1106.3 | USD | 20250806 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1106.97 | USD | 20250805 |