| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chem | China national standards | MT | 1042.14 | USD | 20250909 |
| Shandong Langchem | China national standards | MT | 1295.63 | USD | 20250909 |
| Shandong Langchem | China national standards | MT | 1330.84 | USD | 20250909 |
| Shandong Jinwen Chem | China national standards | MT | 1197.05 | USD | 20250909 |
| Shandong Xingpeng Chem | China national standards | MT | 971.43 | USD | 20250908 |
| Aite Zhejiang | China national standards | MT | 1309.32 | USD | 20250908 |
| Aite Zhejiang | China national standards | MT | 1309.32 | USD | 20250908 |
| Aite Zhejiang | China national standards | MT | 1154.46 | USD | 20250908 |
| Aite Zhejiang | China national standards | MT | 1154.46 | USD | 20250908 |
| Shandong Xingpeng Chem | China national standards | MT | 985.03 | USD | 20250907 |