| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Angxin Chem | China national standards | MT | 620.98 | USD | 20251118 |
| Jinan Angxin Chem | China national standards | MT | 620.89 | USD | 20251111 |
| Jinan Angxin Chem | China national standards | MT | 620.98 | USD | 20251110 |
| Jinan Angxin Chem | China national standards | MT | 621.15 | USD | 20251107 |
| Jinan Angxin Chem | China national standards | MT | 620.9 | USD | 20251106 |
| Jinan Angxin Chem | China national standards | MT | 620.58 | USD | 20251105 |
| Jinan Angxin Chem | China national standards | MT | 620.72 | USD | 20251104 |
| Jinan Angxin Chem | China national standards | MT | 620.88 | USD | 20251103 |
| Jinan Angxin Chem | China national standards | MT | 620.77 | USD | 20251031 |
| Jinan Angxin Chem | China national standards | MT | 621.09 | USD | 20251029 |