| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhiheng | China national standards | MT | 1128.8 | USD | 20251119 |
| Shandong Zhiheng | China national standards | MT | 1128.8 | USD | 20251119 |
| Shandong Hongyang Chem | China national standards | MT | 1188.06 | USD | 20251119 |
| Shandong Jinling Chem | China national standards | MT | 1269.9 | USD | 20251119 |
| Shandong Jinling Chem | China national standards | MT | 1269.9 | USD | 20251119 |
| Shandong Langchem | China national standards | MT | 1199.35 | USD | 20251119 |
| Shandong Langchem | China national standards | MT | 1178.18 | USD | 20251119 |
| Hangjin Tech | China national standards | MT | 1015.92 | USD | 20251119 |
| Shandong Langchem | China national standards | MT | 1173.95 | USD | 20251119 |
| Shandong Langchem | China national standards | MT | 1213.46 | USD | 20251119 |