| Vendor | Spec | Unit | Price | Currency | Date |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 422.2 | USD | 20250924 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 478.49 | USD | 20250924 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 478.49 | USD | 20250923 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 422.2 | USD | 20250923 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 421.77 | USD | 20250919 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 478.01 | USD | 20250919 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 478.3 | USD | 20250918 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 422.03 | USD | 20250918 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 478.69 | USD | 20250916 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 422.37 | USD | 20250916 |