| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1462.95 | USD | 20250929 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1461.66 | USD | 20250928 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1461.66 | USD | 20250928 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1461.66 | USD | 20250927 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1461.66 | USD | 20250927 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1461.66 | USD | 20250926 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1461.66 | USD | 20250926 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1463.61 | USD | 20250925 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1463.61 | USD | 20250925 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1463.61 | USD | 20250924 |