| Vendor | Spec | Unit | Price | Currency | Date |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 620.16 | USD | 20251017 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 620.16 | USD | 20251017 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 620.0 | USD | 20251016 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 620.0 | USD | 20251016 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 619.3 | USD | 20251011 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 619.3 | USD | 20251011 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 619.3 | USD | 20251010 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 619.3 | USD | 20251010 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 618.83 | USD | 20251009 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 618.83 | USD | 20251009 |