| Vendor | Spec | Unit | Price | Currency | Date |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 352.46 | USD | 20251021 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 352.25 | USD | 20251020 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 352.25 | USD | 20251020 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 351.87 | USD | 20251011 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 351.87 | USD | 20251010 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 351.87 | USD | 20251010 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 351.61 | USD | 20251009 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 351.36 | USD | 20250928 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 351.36 | USD | 20250926 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 351.83 | USD | 20250925 |