| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Qi Mat | China national standards | MT | 1526.44 | USD | 20251210 |
| Shandong Mingyu | China national standards | MT | 1696.04 | USD | 20251210 |
| Shandong Mengkanda Chem | China national standards | MT | 1081.23 | USD | 20251210 |
| Zibo Feiyuan Chem | China national standards | MT | 1554.7 | USD | 20251210 |
| Shandong Xingpeng Chem | China national standards | MT | 1625.37 | USD | 20251210 |
| Jinan Qi Mat | China national standards | MT | 1526.44 | USD | 20251210 |
| Shandong Yihe Chem | China national standards | MT | 1639.51 | USD | 20251210 |
| Shandong Junfeng | China national standards | MT | 925.76 | USD | 20251210 |
| Dongying Lianchem | China national standards | MT | 1201.02 | USD | 20251209 |
| Shandong Junfeng | China national standards | MT | 925.49 | USD | 20251209 |