| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chem | China national standards | MT | 1139.69 | USD | 20250901 |
| Shandong Yeyang Chem | China national standards | MT | 1146.72 | USD | 20250901 |
| Qingdao Shengze Chem | China national standards | MT | 1407.86 | USD | 20250831 |
| Qingdao Shengze Chem | China national standards | MT | 1407.86 | USD | 20250831 |
| Shandong Xingpeng Chem | China national standards | MT | 1450.09 | USD | 20250831 |
| Qingdao Shengze Chem | China national standards | MT | 1407.86 | USD | 20250830 |
| Qingdao Shengze Chem | China national standards | MT | 1407.86 | USD | 20250830 |
| Shandong Xingpeng Chem | China national standards | MT | 1450.09 | USD | 20250830 |
| Shandong Xima | China national standards | MT | 844.71 | USD | 20250830 |
| Shandong Qiangsen Chem | China national standards | MT | 1055.89 | USD | 20250830 |