| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhiheng | China national standards | MT | 1130.69 | USD | 20251210 |
| Shandong Hongyang Chem | China national standards | MT | 1095.36 | USD | 20251210 |
| Shandong Jinling Chem | China national standards | MT | 1272.03 | USD | 20251210 |
| Shandong Hongyang Chem | China national standards | MT | 1190.06 | USD | 20251210 |
| Shandong Jinling | China national standards | MT | 1074.16 | USD | 20251210 |
| Shandong Junfeng | China national standards | MT | 1201.36 | USD | 20251210 |
| Shandong Langchem | China national standards | MT | 1215.5 | USD | 20251210 |
| Shandong Langchem | China national standards | MT | 1215.5 | USD | 20251210 |
| Wanhua Chem | China national standards | MT | 989.36 | USD | 20251210 |
| Shandong Jinling Chem | China national standards | MT | 1031.76 | USD | 20251210 |