| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhongke Taihua | China national standards | MT | 946.47 | USD | 20251129 |
| Shandong Jinwen Chem | China national standards | MT | 854.65 | USD | 20251129 |
| Jinan Aochen Chem | China national standards | MT | 748.7 | USD | 20251128 |
| Shandong Jinwen Chem | China national standards | MT | 854.65 | USD | 20251128 |
| Shandong Jinshenrun Chem | China national standards | MT | 755.77 | USD | 20251128 |
| Jinan Jinhao Chem | China national standards | MT | 748.7 | USD | 20251128 |
| Jinan Aochen Chem | China national standards | MT | 748.7 | USD | 20251128 |
| Jinan Jinhao Chem | China national standards | MT | 748.7 | USD | 20251128 |
| Shandong Jinshenrun Chem | China national standards | MT | 755.77 | USD | 20251128 |
| Shandong Huize Chem | China national standards | MT | 854.65 | USD | 20251128 |