| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1401.8 | USD | 20250814 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1401.54 | USD | 20250813 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1401.54 | USD | 20250813 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1400.21 | USD | 20250812 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1400.21 | USD | 20250812 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1400.46 | USD | 20250811 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1400.46 | USD | 20250811 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1400.91 | USD | 20250808 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1400.91 | USD | 20250808 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1401.64 | USD | 20250807 |