| Vendor | Spec | Unit | Price | Currency | Date |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 621.24 | USD | 20251125 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 621.24 | USD | 20251125 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 621.06 | USD | 20251124 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 621.06 | USD | 20251124 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 620.81 | USD | 20251121 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 620.81 | USD | 20251121 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 620.55 | USD | 20251120 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 620.55 | USD | 20251120 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 620.98 | USD | 20251118 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 620.98 | USD | 20251118 |