| Vendor | Spec | Unit | Price | Currency | Date |
| Zibo Lishuo Chem | China national standards | MT | 989.27 | USD | 20251201 |
| Lihuayi Shandong | China national standards | MT | 890.35 | USD | 20251201 |
| Shandong Yuhuang Chem | China national standards | MT | 1201.26 | USD | 20251201 |
| Sinopec | China national standards | MT | 904.48 | USD | 20251201 |
| Beijing Yanshan Petro | China national standards | MT | 932.74 | USD | 20251201 |
| Shaanxi Yanchang Petro | China national standards | MT | 1201.26 | USD | 20251201 |
| Jinan Jiaxing Chem | China national standards | MT | 1158.86 | USD | 20251201 |
| Zibo Lishuo Chem | China national standards | MT | 989.27 | USD | 20251201 |
| Lihuayi Shandong | China national standards | MT | 890.35 | USD | 20251201 |
| Shandong Yushuo Chem | China national standards | MT | 918.61 | USD | 20251201 |