| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Zhongyin Mat | China national standards | MT | 918.16 | USD | 20251202 |
| Shandong Hualu | China national standards | MT | 974.66 | USD | 20251202 |
| Shandong Yuxuan Chem | China national standards | MT | 967.6 | USD | 20251202 |
| Wuhan Hengjiu Chem | China national standards | MT | 1130.04 | USD | 20251202 |
| Shandong Yaoming Chem | China national standards | MT | 819.28 | USD | 20251202 |
| Jinan Aochen Chem | China national standards | MT | 1313.67 | USD | 20251202 |
| Shandong Huize Chem | China national standards | MT | 1045.29 | USD | 20251202 |
| Shandong Yuxuan Chem | China national standards | MT | 967.6 | USD | 20251202 |
| Jinan Qi Mat | China national standards | MT | 868.72 | USD | 20251202 |
| Liaocheng Yuanze Chem | China national standards | MT | 875.78 | USD | 20251202 |