| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1336.01 | USD | 20251204 |
| Shandong Aite Chem | China national standards | MT | 1229.98 | USD | 20251204 |
| Kunlun Daqing Petro | China national standards | MT | 1201.7 | USD | 20251204 |
| Shandong Hanyue Chem | China national standards | MT | 933.09 | USD | 20251204 |
| Lihuayi Shandong | China national standards | MT | 890.67 | USD | 20251204 |
| Lihuayi Shandong | China national standards | MT | 923.19 | USD | 20251204 |
| Zibo Lishuo Chem | China national standards | MT | 989.64 | USD | 20251204 |
| Beijing Yanshan Petro | China national standards | MT | 933.09 | USD | 20251204 |
| Shandong Shuojia Chem | China national standards | MT | 900.57 | USD | 20251204 |
| Shandong Shuojia Chem | China national standards | MT | 900.57 | USD | 20251204 |