| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chem | China national standards | MT | 777.35 | USD | 20251210 |
| Shandong Energy | China national standards | MT | 791.49 | USD | 20251210 |
| Lihuayi Shandong | China national standards | MT | 2162.45 | USD | 20251210 |
| Luxi Chem | China national standards | MT | 1060.03 | USD | 20251210 |
| Shandong Hongyang Chem | China national standards | MT | 961.09 | USD | 20251210 |
| Zibo Lishuo Chem | China national standards | MT | 918.69 | USD | 20251210 |
| Shandong Junfeng | China national standards | MT | 2162.45 | USD | 20251210 |
| Shandong Zhiheng | China national standards | MT | 946.96 | USD | 20251210 |
| Shandong Junfeng | China national standards | MT | 2162.45 | USD | 20251210 |
| Wanhua Chem | China national standards | MT | 1024.69 | USD | 20251210 |