| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hualu | China national standards | MT | 971.08 | USD | 20251004 |
| Shandong Hualu | China national standards | MT | 1097.74 | USD | 20251003 |
| Wuhan Hengjiu Chem | China national standards | MT | 886.64 | USD | 20251003 |
| Wuhan Hengjiu Chem | China national standards | MT | 886.64 | USD | 20251002 |
| Shandong Daoqin Chem | China national standards | MT | 985.15 | USD | 20251002 |
| Wuhan Hengjiu Chem | China national standards | MT | 886.64 | USD | 20251001 |
| Zibo Dehe Chem | China national standards | MT | 985.15 | USD | 20250930 |
| Shandong Yuxuan Chem | China national standards | MT | 999.23 | USD | 20250930 |
| Shandong Hualu | China national standards | MT | 1013.3 | USD | 20250930 |
| Shandong Guanjiu Energy | China national standards | MT | 1083.67 | USD | 20250930 |