| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1110.67 | USD | 20250919 |
| Shandong Langchem | China national standards | MT | 1110.67 | USD | 20250919 |
| Shandong Langchem | China national standards | MT | 1096.61 | USD | 20250919 |
| Lihuayi Weiyuan Chem | China national standards | MT | 1152.85 | USD | 20250919 |
| Beijing Yanshan Petro | China national standards | MT | 1166.91 | USD | 20250919 |
| Shandong Hongyang Chem | China national standards | MT | 1012.26 | USD | 20250919 |
| Shandong Zhiheng | China national standards | MT | 1110.67 | USD | 20250919 |
| Beijing Yanshan Petro | China national standards | MT | 1110.67 | USD | 20250919 |
| Shandong Xima | China national standards | MT | 886.26 | USD | 20250918 |
| Zibo Jinshuo Chem | China national standards | MT | 991.77 | USD | 20250918 |