| Vendor | Spec | Unit | Price | Currency | Date |
|---|---|---|---|---|---|
| Shandong Qiangsen Chem | China national standards | MT | USD | 20250723 | |
| Chizhou Xinyu Chem | China national standards | MT | USD | 20250723 | |
| Henan Huiyi | China national standards | MT | USD | 20250723 | |
| Henan Huiyi | China national standards | MT | USD | 20250722 |