| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chem | China national standards | MT | 777.57 | USD | 20251204 |
| CNPC | China national standards | MT | 805.85 | USD | 20251204 |
| Shandong Energy | China national standards | MT | 791.71 | USD | 20251204 |
| Wanhua Chem | China national standards | MT | 2163.06 | USD | 20251204 |
| Shandong Yeyang Chem | China national standards | MT | 777.57 | USD | 20251204 |
| Wuhan Hengjiu Chem | China national standards | MT | 1060.33 | USD | 20251204 |
| Shandong Laya Chem | China national standards | MT | 791.71 | USD | 20251204 |
| Luxi Chem | China national standards | MT | 975.5 | USD | 20251204 |
| Qingdao Shengze Chem | China national standards | MT | 713.95 | USD | 20251204 |
| Shandong Energy | China national standards | MT | 1017.91 | USD | 20251204 |