| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chem | China national standards | MT | 931.87 | USD | 20251114 |
| Shandong Xima | China national standards | MT | 889.52 | USD | 20251114 |
| Shandong Langchem | China national standards | MT | 1115.43 | USD | 20251114 |
| Shandong Henrui Chem | China national standards | MT | 847.16 | USD | 20251114 |
| Beijing Yanshan Petro | China national standards | MT | 917.76 | USD | 20251114 |
| Shandong Shuojia Chem | China national standards | MT | 917.76 | USD | 20251114 |
| Shandong Qiangsen Chem | China national standards | MT | 931.87 | USD | 20251114 |
| Shandong Jinshenrun Chem | China national standards | MT | 988.35 | USD | 20251114 |
| Shandong Jinshenrun Chem | China national standards | MT | 988.35 | USD | 20251114 |
| Beijing Yanshan Petro | China national standards | MT | 988.35 | USD | 20251114 |