| Vendor | Spec | Unit | Price | Currency | Date |
| Shanghai Wanzhong | China national standards | MT | 969.63 | USD | 20250825 |
| Qingdao Shengze Chem | China national standards | MT | 955.58 | USD | 20250825 |
| Shandong Xingpeng Chem | China national standards | MT | 941.53 | USD | 20250825 |
| Shandong Langchem | China national standards | MT | 1124.21 | USD | 20250825 |
| Shandong Langchem | China national standards | MT | 1103.13 | USD | 20250825 |
| Shandong Langchem | China national standards | MT | 1110.16 | USD | 20250825 |
| Shandong Langchem | China national standards | MT | 1110.16 | USD | 20250825 |
| Shandong Langchem | China national standards | MT | 1096.11 | USD | 20250825 |
| Shandong Junfeng | China national standards | MT | 983.68 | USD | 20250825 |
| Shandong Junfeng | China national standards | MT | 983.68 | USD | 20250825 |