| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 932.56 | USD | 20251209 |
| Jinan Zhongyin Mat | China national standards | MT | 989.08 | USD | 20251209 |
| Aite Zhejiang | China national standards | MT | 1031.47 | USD | 20251209 |
| Jinan Qi Mat | China national standards | MT | 974.95 | USD | 20251209 |
| Shandong Zhiheng | China national standards | MT | 1257.54 | USD | 20251209 |
| Shandong Jinshenrun Chem | China national standards | MT | 861.91 | USD | 20251209 |
| Jinan Angxin Chem | China national standards | MT | 974.95 | USD | 20251209 |
| Shandong Hongyang Chem | China national standards | MT | 1130.37 | USD | 20251209 |
| Nanjing Runsheng Petro | China national standards | MT | 989.08 | USD | 20251209 |
| Qingdao Shengze Chem | China national standards | MT | 932.56 | USD | 20251209 |