| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1079.41 | USD | 20251119 |
| Shandong Langchem | China national standards | MT | 1100.58 | USD | 20251119 |
| Shandong Hongyang Chem | China national standards | MT | 1128.8 | USD | 20251119 |
| Shandong Xima | China national standards | MT | 987.7 | USD | 20251119 |
| Shandong Shuojia Chem | China national standards | MT | 874.82 | USD | 20251119 |
| Qingdao Shengze Chem | China national standards | MT | 825.43 | USD | 20251119 |
| Hualu Holdings | China national standards | MT | 1312.22 | USD | 20251119 |
| Nantong Zhonghe Chem | China national standards | MT | 1120.33 | USD | 20251119 |
| Qingdao Shengze Chem | China national standards | MT | 825.43 | USD | 20251119 |
| Wuhan Hengjiu Chem | China national standards | MT | 1128.8 | USD | 20251119 |