| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Pulaihua Chem | China national standards | MT | 1185.1 | USD | 20251031 |
| Lihuayi Shandong | China national standards | MT | 1107.51 | USD | 20251031 |
| Jinan Pulaihua Chem | China national standards | MT | 1107.51 | USD | 20251031 |
| Sinopec | China national standards | MT | 1269.75 | USD | 20251031 |
| Shandong Yuhuang Chem | China national standards | MT | 1269.75 | USD | 20251031 |
| Jinan Pulaihua Chem | China national standards | MT | 1269.75 | USD | 20251031 |
| Shandong Laya Chem | China national standards | MT | 973.48 | USD | 20251031 |
| Shandong Langchem | China national standards | MT | 1297.97 | USD | 20251031 |
| Shandong Langchem | China national standards | MT | 1297.97 | USD | 20251031 |
| Shandong Langchem | China national standards | MT | 1333.24 | USD | 20251031 |