| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chem | China national standards | MT | 802.2 | USD | 20250930 |
| Shandong Zhongke Taihua | China national standards | MT | 942.93 | USD | 20250930 |
| Shandong Zhongke Taihua | China national standards | MT | 942.93 | USD | 20250930 |
| Shandong Zhongke Taihua | China national standards | MT | 942.93 | USD | 20250930 |
| Shandong Shuojia Chem | China national standards | MT | 759.97 | USD | 20250930 |
| Shandong Shuojia Chem | China national standards | MT | 759.97 | USD | 20250930 |
| Shandong Shuojia Chem | China national standards | MT | 759.97 | USD | 20250930 |
| Shandong Shuojia Chem | China national standards | MT | 759.97 | USD | 20250930 |
| Shandong Shuojia Chem | China national standards | MT | 759.97 | USD | 20250930 |
| Shandong Jinshenrun Chem | China national standards | MT | 745.9 | USD | 20250930 |