| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhiheng | China national standards | MT | 1410.99 | USD | 20251119 |
| Aite Zhejiang | China national standards | MT | 1298.11 | USD | 20251119 |
| Dongying Huatai Chem | China national standards | MT | 1086.47 | USD | 20251119 |
| Shandong Jinling Chem | China national standards | MT | 1128.8 | USD | 20251119 |
| Shandong Laya Chem | China national standards | MT | 973.59 | USD | 20251119 |
| Shandong Zhenkun | China national standards | MT | 998.98 | USD | 20251119 |
| Shandong Langchem | China national standards | MT | 1396.88 | USD | 20251119 |
| Shandong Zhenkun | China national standards | MT | 998.98 | USD | 20251119 |
| Shandong Langchem | China national standards | MT | 1262.84 | USD | 20251119 |
| Shandong Langchem | China national standards | MT | 1213.46 | USD | 20251119 |