| Vendor | Spec | Unit | Price | Currency | Date |
|---|---|---|---|---|---|
| Qingdao Chengxin Chem | China national standards | MT | USD | 20251031 | |
| Qingdao Chengxin Chem | China national standards | MT | USD | 20251030 | |
| Qingdao Chengxin Chem | China national standards | MT | USD | 20251016 | |
| Qingdao Chengxin Chem | China national standards | MT | USD | 20251015 |