| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Pulaihua Chem | China national standards | MT | 1198.36 | USD | 20251021 |
| Shandong Yeyang Chem | China national standards | MT | 1268.86 | USD | 20251021 |
| Shandong Junfeng | China national standards | MT | 1127.19 | USD | 20251020 |
| Shandong Mingyu | China national standards | MT | 1127.19 | USD | 20251020 |
| Shandong Yeyang Chem | China national standards | MT | 1268.09 | USD | 20251020 |
| Shandong Aite Chem | China national standards | MT | 1155.37 | USD | 20251020 |
| Shandong Langchem | China national standards | MT | 1244.14 | USD | 20251020 |
| Shandong Mingyu | China national standards | MT | 1127.57 | USD | 20251018 |
| Shandong Aite Chem | China national standards | MT | 1155.76 | USD | 20251018 |
| Shandong Junfeng | China national standards | MT | 1127.57 | USD | 20251017 |