| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chem | China national standards | MT | 190.06 | USD | 20250908 |
| Shandong Fusheng | China national standards | MT | 281.58 | USD | 20250908 |
| Henan Huiyi | China national standards | MT | 281.44 | USD | 20250907 |
| Henan Huiyihai | China national standards | MT | 274.4 | USD | 20250907 |
| Henan Huiyihai | China national standards | MT | 274.4 | USD | 20250906 |
| Shandong Qiangsen Chem | China national standards | MT | 189.97 | USD | 20250906 |
| Henan Huiyihai | China national standards | MT | 274.4 | USD | 20250905 |
| Shandong Fusheng | China national standards | MT | 281.44 | USD | 20250905 |
| Henan Huiyi | China national standards | MT | 281.44 | USD | 20250905 |
| Shandong Qiangsen Chem | China national standards | MT | 189.97 | USD | 20250905 |