| Vendor | Spec | Unit | Price | Currency | Date |
| Zibo Dehe Chem | China national standards | MT | 961.01 | USD | 20251201 |
| Hubei 789 Chem | China national standards | MT | 1201.26 | USD | 20251201 |
| Shandong Qiangsen Chem | China national standards | MT | 890.35 | USD | 20251201 |
| Jiangsu Youlixin Chem | China national standards | MT | 989.27 | USD | 20251201 |
| Shandong Daoqin Chem | China national standards | MT | 946.88 | USD | 20251201 |
| Shandong Qiangsen Chem | China national standards | MT | 890.35 | USD | 20251201 |
| Shandong Aite Chem | China national standards | MT | 1130.6 | USD | 20251201 |
| Guangzhou Tianyue Chem | China national standards | MT | 1215.39 | USD | 20251201 |
| Shandong Daoqin Chem | China national standards | MT | 918.22 | USD | 20251130 |
| Shandong Daoqin Chem | China national standards | MT | 946.47 | USD | 20251130 |