| Vendor | Spec | Unit | Price | Currency | Date |
| Wanhua Chem | China national standards | MT | 1023.2 | USD | 20251118 |
| Shandong Qiangsen Chem | China national standards | MT | 818.56 | USD | 20251118 |
| Zibo Lishuo Chem | China national standards | MT | 917.35 | USD | 20251118 |
| Shandong Junfeng | China national standards | MT | 2160.53 | USD | 20251117 |
| Wanhua Chem | China national standards | MT | 1023.78 | USD | 20251117 |
| Shaanxi Petro Yanan | China national standards | MT | 1063.32 | USD | 20251117 |
| Shandong Junfeng | China national standards | MT | 2160.53 | USD | 20251117 |
| Shandong Yeyang Chem | China national standards | MT | 776.66 | USD | 20251117 |
| Shandong Yeyang Chem | China national standards | MT | 776.66 | USD | 20251117 |
| Wanhua Chem | China national standards | MT | 762.54 | USD | 20251117 |