| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Dezheng Chem | China national standards | MT | 985.15 | USD | 20251007 |
| Shandong Xingpeng Chem | China national standards | MT | 1076.63 | USD | 20251007 |
| Shandong Xingpeng Chem | China national standards | MT | 1076.63 | USD | 20251006 |
| Hangjin Tech | China national standards | MT | 1013.3 | USD | 20251006 |
| Shandong Xingpeng Chem | China national standards | MT | 1076.63 | USD | 20251005 |
| Jinan Dezheng Chem | China national standards | MT | 985.15 | USD | 20251005 |
| Shandong Jinling Chem | China national standards | MT | 1013.3 | USD | 20251005 |
| Dongying HuataiChem | China national standards | MT | 1013.3 | USD | 20251005 |
| Jinan Dezheng Chem | China national standards | MT | 1013.3 | USD | 20251005 |
| Hangjin Tech | China national standards | MT | 1013.3 | USD | 20251005 |