| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Aochen Chem | China national standards | MT | 748.0 | USD | 20251028 |
| Jinan Jinhao Chem | China national standards | MT | 776.22 | USD | 20251028 |
| Jinan Jinhao Chem | China national standards | MT | 776.22 | USD | 20251028 |
| Shandong Jinshenrun Chem | China national standards | MT | 762.11 | USD | 20251028 |
| Shandong Jinshenrun Chem | China national standards | MT | 762.11 | USD | 20251028 |
| Baozhen Shandong Chem | China national standards | MT | 748.0 | USD | 20251028 |
| Baozhen Shandong Chem | China national standards | MT | 748.0 | USD | 20251028 |
| Zibo Qixiang Chem | China national standards | MT | 762.11 | USD | 20251028 |
| Shanghai Ronghe Chem | China national standards | MT | 790.34 | USD | 20251028 |
| Tangshan Huayi | China national standards | MT | 889.13 | USD | 20251028 |