| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Aochen Chem | China national standards | MT | 987.65 | USD | 20251121 |
| Shandong Langchem | China national standards | MT | 1058.2 | USD | 20251121 |
| Shandong Aite Chem | China national standards | MT | 945.33 | USD | 20251121 |
| Jinan Qi Mat | China national standards | MT | 1029.98 | USD | 20251121 |
| Hubei 789 Chem | China national standards | MT | 818.34 | USD | 20251121 |
| Hubei 789 Chem | China national standards | MT | 818.34 | USD | 20251121 |
| Shandong Kaitai Petro | China national standards | MT | 888.89 | USD | 20251121 |
| Shandong Mingyu | China national standards | MT | 860.67 | USD | 20251121 |
| Aite Zhejiang | China national standards | MT | 888.89 | USD | 20251121 |
| Jinan Aochen Chem | China national standards | MT | 917.11 | USD | 20251121 |