| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Angxin Chem | China national standards | MT | 180.61 | USD | 20251119 |
| Jinan Angxin Chem | China national standards | MT | 180.62 | USD | 20251111 |
| Jinan Angxin Chem | China national standards | MT | 180.65 | USD | 20251110 |
| Jinan Angxin Chem | China national standards | MT | 180.7 | USD | 20251107 |
| Jinan Angxin Chem | China national standards | MT | 180.63 | USD | 20251106 |
| Jinan Angxin Chem | China national standards | MT | 180.53 | USD | 20251105 |
| Jinan Angxin Chem | China national standards | MT | 180.57 | USD | 20251104 |
| Jinan Angxin Chem | China national standards | MT | 180.62 | USD | 20251103 |
| Jinan Angxin Chem | China national standards | MT | 180.59 | USD | 20251031 |
| Jinan Angxin Chem | China national standards | MT | 180.68 | USD | 20251029 |