| Vendor | Spec | Unit | Price | Currency | Date |
| Beijing Yanshan Petro | China national standards | MT | 1059.49 | USD | 20251128 |
| Shandong Junfeng | China national standards | MT | 988.85 | USD | 20251128 |
| Shandong Langchem | China national standards | MT | 1115.99 | USD | 20251128 |
| Shandong Langchem | China national standards | MT | 1108.93 | USD | 20251128 |
| Beijing Yanshan Petro | China national standards | MT | 1059.49 | USD | 20251128 |
| Shandong Junfeng | China national standards | MT | 1059.49 | USD | 20251128 |
| Shandong Junfeng | China national standards | MT | 918.22 | USD | 20251128 |
| Shandong Langchem | China national standards | MT | 1130.12 | USD | 20251128 |
| Shandong Mingyu | China national standards | MT | 1052.42 | USD | 20251128 |
| Jinan Xingdate Bio | China national standards | MT | 988.85 | USD | 20251128 |