| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1211.81 | USD | 20251016 |
| Shandong Langchem | China national standards | MT | 1211.81 | USD | 20251016 |
| Wanhua Chem | China national standards | MT | 1338.63 | USD | 20251016 |
| Shandong Zhiheng | China national standards | MT | 1169.54 | USD | 20251016 |
| Shandong Zhiheng | China national standards | MT | 1127.27 | USD | 20251016 |
| Shandong Zhiheng | China national standards | MT | 1127.27 | USD | 20251016 |
| Shandong Hongyang Chem | China national standards | MT | 1120.22 | USD | 20251016 |
| Shandong Hongyang Chem | China national standards | MT | 1186.45 | USD | 20251016 |
| Shandong Hongyang Chem | China national standards | MT | 1092.04 | USD | 20251016 |
| Hangjin Tech | China national standards | MT | 1014.54 | USD | 20251016 |