| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 775.2 | USD | 20251017 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 775.0 | USD | 20251016 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 775.0 | USD | 20251016 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 746.53 | USD | 20251015 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 774.7 | USD | 20251015 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 774.42 | USD | 20251014 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 746.26 | USD | 20251014 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 774.57 | USD | 20251013 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 746.41 | USD | 20251013 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 745.97 | USD | 20251012 |