| Vendor | Spec | Unit | Price | Currency | Date |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 844.39 | USD | 20250925 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 844.39 | USD | 20250924 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 844.39 | USD | 20250924 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 844.39 | USD | 20250923 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 844.39 | USD | 20250923 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 843.55 | USD | 20250919 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 843.55 | USD | 20250919 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 844.06 | USD | 20250918 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 844.06 | USD | 20250918 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 844.75 | USD | 20250916 |