| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1099.36 | USD | 20250811 |
| Shandong Langchem | China national standards | MT | 1120.37 | USD | 20250811 |
| Shandong Xima | China national standards | MT | 882.29 | USD | 20250811 |
| Shandong Qiangsen Chem | China national standards | MT | 924.31 | USD | 20250811 |
| Shandong Qiangsen Chem | China national standards | MT | 924.31 | USD | 20250811 |
| Shandong Junfeng | China national standards | MT | 1050.35 | USD | 20250811 |
| Shandong Junfeng | China national standards | MT | 910.3 | USD | 20250811 |
| Shandong Junfeng | China national standards | MT | 980.32 | USD | 20250811 |
| Shandong Xingpeng Chem | China national standards | MT | 924.6 | USD | 20250810 |
| Unknown | China national standards | MT | 1180.0 | USD | 20210323 |