| Vendor | Spec | Unit | Price | Currency | Date |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1184.27 | USD | 20251021 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1184.27 | USD | 20251021 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1183.55 | USD | 20251020 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1183.55 | USD | 20251020 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1183.95 | USD | 20251017 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1183.95 | USD | 20251017 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1183.63 | USD | 20251016 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1183.63 | USD | 20251016 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1182.98 | USD | 20251013 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1182.98 | USD | 20251013 |