| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Chengxin Chem | China national standards | MT | 902.93 | USD | 20251031 |
| Qingdao Chengxin Chem | China national standards | MT | 902.93 | USD | 20251031 |
| Qingdao Chengxin Chem | China national standards | MT | 903.14 | USD | 20251030 |
| Qingdao Chengxin Chem | China national standards | MT | 903.14 | USD | 20251030 |
| Qingdao Chengxin Chem | China national standards | MT | 901.81 | USD | 20251016 |
| Qingdao Chengxin Chem | China national standards | MT | 901.81 | USD | 20251016 |
| Qingdao Chengxin Chem | China national standards | MT | 901.47 | USD | 20251015 |
| Qingdao Chengxin Chem | China national standards | MT | 901.47 | USD | 20251015 |
| Qingdao Chengxin Chem | China national standards | MT | 900.71 | USD | 20250930 |
| Qingdao Chengxin Chem | China national standards | MT | 900.71 | USD | 20250930 |