| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Qi Mat | China national standards | MT | 1116.88 | USD | 20251204 |
| Shandong Jinling Chem | China national standards | MT | 1272.39 | USD | 20251204 |
| Shandong Zhiheng | China national standards | MT | 1173.08 | USD | 20251203 |
| Shandong Qiangsen Chem | China national standards | MT | 989.34 | USD | 20251203 |
| Shandong Yihe Chem | China national standards | MT | 1060.01 | USD | 20251203 |
| Shandong Jinling Chem | China national standards | MT | 1031.74 | USD | 20251203 |
| Shandong Hongyang Chem | China national standards | MT | 1190.04 | USD | 20251203 |
| Shandong Xima | China national standards | MT | 961.08 | USD | 20251203 |
| Shandong Zhiheng | China national standards | MT | 1130.68 | USD | 20251203 |
| Shandong Jinling Chem | China national standards | MT | 1123.61 | USD | 20251203 |