| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 971.46 | USD | 20250916 |
| Shandong Fusheng | China national standards | MT | 1098.17 | USD | 20250916 |
| Shandong Fusheng | China national standards | MT | 886.99 | USD | 20250916 |
| Nanjing Guanshan Energy | China national standards | MT | 978.5 | USD | 20250916 |
| Qingdao Shengze Chem | China national standards | MT | 971.07 | USD | 20250915 |
| Shandong Huize Chem | China national standards | MT | 1055.51 | USD | 20250915 |
| Shandong Xima | China national standards | MT | 872.55 | USD | 20250915 |
| Shandong Qiangsen Chem | China national standards | MT | 886.62 | USD | 20250915 |
| Shandong Qiangsen Chem | China national standards | MT | 886.62 | USD | 20250915 |
| Shandong Fusheng | China national standards | MT | 886.62 | USD | 20250915 |