| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Qi Mat | China national standards | MT | 1566.76 | USD | 20251124 |
| Shandong Yihe Chem | China national standards | MT | 1636.68 | USD | 20251123 |
| Qingdao Shengze Chem | China national standards | MT | 1594.36 | USD | 20251123 |
| Shandong Yihe Chem | China national standards | MT | 1636.68 | USD | 20251123 |
| Qingdao Shengze Chem | China national standards | MT | 1594.36 | USD | 20251123 |
| Jinan Jinrihe Chem | China national standards | MT | 1693.12 | USD | 20251123 |
| Shandong Xingpeng Chem | China national standards | MT | 1622.57 | USD | 20251123 |
| Shandong Jinshenrun Chem | China national standards | MT | 1580.25 | USD | 20251123 |
| Qingdao Shengze Chem | China national standards | MT | 1594.36 | USD | 20251122 |
| Shandong Yuanhe Chem | China national standards | MT | 1269.84 | USD | 20251122 |