| Vendor | Spec | Unit | Price | Currency | Date |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1045.6 | USD | 20251209 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1045.88 | USD | 20251203 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1045.29 | USD | 20251202 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1045.8 | USD | 20251201 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1045.26 | USD | 20251126 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1044.81 | USD | 20251125 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1044.37 | USD | 20251118 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1044.96 | USD | 20251117 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1044.83 | USD | 20251114 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1044.24 | USD | 20251113 |