| Vendor | Spec | Unit | Price | Currency | Date |
| Wanhua Yantai | China national standards | MT | 832.57 | USD | 20251106 |
| Shandong Kaitai Petro | China national standards | MT | 917.24 | USD | 20251106 |
| Zibo Lishuo Chem | China national standards | MT | 846.68 | USD | 20251106 |
| Zibo Lishuo Chem | China national standards | MT | 846.68 | USD | 20251106 |
| Jinan Aochen Chem | China national standards | MT | 1199.46 | USD | 20251106 |
| Shandong Yaoming Chem | China national standards | MT | 832.57 | USD | 20251106 |
| Wanhua Yantai | China national standards | MT | 818.46 | USD | 20251106 |
| Wanhua Yantai | China national standards | MT | 896.07 | USD | 20251106 |
| Wanhua Yantai | China national standards | MT | 889.01 | USD | 20251106 |
| Shandong Yihe Chem | China national standards | MT | 790.23 | USD | 20251106 |