| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yushuo Chem | China national standards | MT | 1611.1 | USD | 20251201 |
| Qingdao Shengze Chem | China national standards | MT | 1512.18 | USD | 20251201 |
| Jinan Qi Mat | China national standards | MT | 1525.66 | USD | 20251130 |
| Qingdao Shengze Chem | China national standards | MT | 1539.79 | USD | 20251130 |
| Jinan Qi Mat | China national standards | MT | 1525.66 | USD | 20251130 |
| Shandong Jinshenrun Chem | China national standards | MT | 1582.17 | USD | 20251130 |
| Jinan Qi Mat | China national standards | MT | 1525.66 | USD | 20251130 |
| Shandong Xingpeng Chem | China national standards | MT | 1624.55 | USD | 20251130 |
| Qingdao Shengze Chem | China national standards | MT | 1596.29 | USD | 20251130 |
| Jinan Jinrihe Chem | China national standards | MT | 1695.18 | USD | 20251130 |