| Vendor | Spec | Unit | Price | Currency | Date |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 742.6 | USD | 20250815 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 742.6 | USD | 20250815 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 742.82 | USD | 20250813 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 742.82 | USD | 20250813 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 742.11 | USD | 20250812 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 742.11 | USD | 20250812 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 742.24 | USD | 20250811 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 742.24 | USD | 20250811 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 742.48 | USD | 20250808 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 742.48 | USD | 20250808 |