| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 1098.64 | USD | 20250529 |
| Shandong Fusheng | China national standards | MT | 1209.9 | USD | 20250529 |
| Shandong Fusheng | China national standards | MT | 1209.9 | USD | 20250529 |
| Shandong Fusheng | China national standards | MT | 1210.11 | USD | 20250528 |
| Shandong Fusheng | China national standards | MT | 1210.11 | USD | 20250528 |
| Qingdao Shengze Chem | China national standards | MT | 1098.84 | USD | 20250528 |
| Shandong Fusheng | China national standards | MT | 1210.42 | USD | 20250527 |
| Shandong Fusheng | China national standards | MT | 1210.42 | USD | 20250527 |
| Qingdao Shengze Chem | China national standards | MT | 1099.12 | USD | 20250527 |
| Qingdao Shengze Chem | China national standards | MT | 1099.77 | USD | 20250526 |