| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chem | China national standards | MT | 1124.73 | USD | 20250919 |
| Shandong Hongyang Chem | China national standards | MT | 1124.73 | USD | 20250919 |
| Shandong Zhiheng | China national standards | MT | 1251.27 | USD | 20250919 |
| Shandong Xima | China national standards | MT | 984.74 | USD | 20250918 |
| Shandong Qiangsen Chem | China national standards | MT | 984.74 | USD | 20250918 |
| Jinan Zhongyin Mat | China national standards | MT | 977.7 | USD | 20250918 |
| Qingdao Chengxin Chem | China national standards | MT | 1055.07 | USD | 20250918 |
| Hualu Holdings | China national standards | MT | 1308.29 | USD | 20250918 |
| Shandong Huize Chem | China national standards | MT | 1041.01 | USD | 20250918 |
| Shandong Huize Chem | China national standards | MT | 1041.01 | USD | 20250918 |