| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Kaitai Petro | China national standards | MT | 917.87 | USD | 20251117 |
| Wanhua Yantai | China national standards | MT | 790.78 | USD | 20251117 |
| Shandong Yihe Chem | China national standards | MT | 790.78 | USD | 20251117 |
| Shandong Aite Chem | China national standards | MT | 889.63 | USD | 20251117 |
| Shandong Langchem | China national standards | MT | 1143.81 | USD | 20251117 |
| Shandong Aite Chem | China national standards | MT | 946.11 | USD | 20251117 |
| Hubei 789 Chem | China national standards | MT | 819.02 | USD | 20251117 |
| Hubei 789 Chem | China national standards | MT | 819.02 | USD | 20251117 |
| Shandong Qiangsen Chem | China national standards | MT | 819.02 | USD | 20251117 |
| Shandong Qiangsen Chem | China national standards | MT | 819.02 | USD | 20251117 |