| Vendor | Spec | Unit | Price | Currency | Date |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1195.03 | USD | 20250919 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1195.03 | USD | 20250919 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1167.62 | USD | 20250918 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1167.62 | USD | 20250918 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1168.57 | USD | 20250916 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1168.57 | USD | 20250916 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1168.09 | USD | 20250915 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1168.09 | USD | 20250915 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1168.88 | USD | 20250909 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1168.54 | USD | 20250908 |