| Vendor | Spec | Unit | Price | Currency | Date |
| CNPC | China national standards | MT | 1212.67 | USD | 20251023 |
| Shandong Hongyang Chem | China national standards | MT | 1191.52 | USD | 20251023 |
| Shandong Hongyang Chem | China national standards | MT | 1191.52 | USD | 20251023 |
| Shandong Langchem | China national standards | MT | 1297.27 | USD | 20251023 |
| Shandong Langchem | China national standards | MT | 1332.52 | USD | 20251023 |
| Shandong Yuhuang Chem | China national standards | MT | 1290.22 | USD | 20251023 |
| Shandong Jinwen Chem | China national standards | MT | 1198.57 | USD | 20251023 |
| Sinopec | China national standards | MT | 1128.06 | USD | 20251023 |
| Lihuayi Shandong | China national standards | MT | 987.06 | USD | 20251023 |
| Shandong Junfeng | China national standards | MT | 987.06 | USD | 20251023 |