| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1058.2 | USD | 20251121 |
| Shandong Kaitai Petro | China national standards | MT | 917.11 | USD | 20251121 |
| Zibo Lishuo Chem | China national standards | MT | 846.56 | USD | 20251121 |
| Shandong Langchem | China national standards | MT | 1142.86 | USD | 20251121 |
| Aite Zhejiang | China national standards | MT | 881.83 | USD | 20251121 |
| Aite Zhejiang | China national standards | MT | 888.89 | USD | 20251121 |
| Jinan Aochen Chem | China national standards | MT | 959.44 | USD | 20251121 |
| Jinan Aochen Chem | China national standards | MT | 1241.62 | USD | 20251121 |
| Jinan Aochen Chem | China national standards | MT | 1199.29 | USD | 20251121 |
| Shandong Qiangsen Chem | China national standards | MT | 818.34 | USD | 20251121 |