| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1128.67 | USD | 20251031 |
| Shandong Langchem | China national standards | MT | 1107.51 | USD | 20251031 |
| Shandong Langchem | China national standards | MT | 1114.56 | USD | 20251031 |
| Shandong Langchem | China national standards | MT | 1114.56 | USD | 20251031 |
| Shandong Langchem | China national standards | MT | 1100.45 | USD | 20251031 |
| Lihuayi Weiyuan Chem | China national standards | MT | 1156.88 | USD | 20251031 |
| Beijing Yanshan Petro | China national standards | MT | 1170.99 | USD | 20251031 |
| Shandong Hongyang Chem | China national standards | MT | 907.17 | USD | 20251031 |
| Shandong Zhiheng | China national standards | MT | 907.17 | USD | 20251031 |
| Beijing Yanshan Petro | China national standards | MT | 907.17 | USD | 20251031 |