| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chem | China national standards | MT | 802.73 | USD | 20250909 |
| Shandong Langchem | China national standards | MT | 887.22 | USD | 20250909 |
| Shandong Jinwen Chem | China national standards | MT | 852.02 | USD | 20250909 |
| Shandong Jinwen Chem | China national standards | MT | 852.02 | USD | 20250909 |
| Shandong Fusheng | China national standards | MT | 788.64 | USD | 20250909 |
| Zibo Lishuo Chem | China national standards | MT | 816.57 | USD | 20250908 |
| Zibo Lishuo Chem | China national standards | MT | 816.57 | USD | 20250908 |
| Zibo Lishuo Chem | China national standards | MT | 816.57 | USD | 20250908 |
| Zibo Lishuo Chem | China national standards | MT | 816.57 | USD | 20250908 |
| Zibo Lishuo Chem | China national standards | MT | 816.57 | USD | 20250908 |