| Vendor | Spec | Unit | Price | Currency | Date |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1044.0 | USD | 20251027 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1043.31 | USD | 20251024 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1043.46 | USD | 20251023 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1042.93 | USD | 20251022 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1043.28 | USD | 20251021 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1041.55 | USD | 20251011 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1041.55 | USD | 20251010 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1040.76 | USD | 20251009 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1040.03 | USD | 20250926 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1041.42 | USD | 20250925 |