| Vendor | Spec | Unit | Price | Currency | Date |
| Xiamen Yudeshun Chem | China national standards | MT | 1342.59 | USD | 20251201 |
| Sinopec | China national standards | MT | 911.54 | USD | 20251201 |
| Shandong Shuojia Chem | China national standards | MT | 900.24 | USD | 20251201 |
| Lihuayi Shandong | China national standards | MT | 1031.67 | USD | 20251201 |
| Shandong Yuhuang Chem | China national standards | MT | 873.39 | USD | 20251201 |
| Lihuayi Shandong | China national standards | MT | 894.59 | USD | 20251201 |
| Sinopec | China national standards | MT | 890.35 | USD | 20251201 |
| Lihuayi Shandong | China national standards | MT | 908.72 | USD | 20251201 |
| Shandong Hongyang Chem | China national standards | MT | 1194.19 | USD | 20251201 |
| Shandong Yuhuang Chem | China national standards | MT | 1271.92 | USD | 20251201 |