| Vendor | Spec | Unit | Price | Currency | Date |
| Suzhou Nuosman Chem | China national standards | MT | 1298.22 | USD | 20251111 |
| Suzhou Nuosman Chem | China national standards | MT | 1296.61 | USD | 20251022 |
| Suzhou Nuosman Chem | China national standards | MT | 1297.05 | USD | 20251021 |
| Suzhou Nuosman Chem | China national standards | MT | 1296.27 | USD | 20251020 |
| Suzhou Nuosman Chem | China national standards | MT | 1296.71 | USD | 20251017 |