| Vendor | Spec | Unit | Price | Currency | Date |
| Wanhua Chem | China national standards | MT | 996.73 | USD | 20260105 |
| Lihuayi Weiyuan Chem | China national standards | MT | 938.99 | USD | 20251231 |
| Lihuayi Weiyuan Chem | China national standards | MT | 929.89 | USD | 20251229 |
| Lihuayi Weiyuan Chem | China national standards | MT | 914.88 | USD | 20251225 |
| Wanhua Chem | China national standards | MT | 958.92 | USD | 20251225 |
| Sinopec | China national standards | MT | 1230.8 | USD | 20251211 |
| Lihuayi Shandong | China national standards | MT | 919.56 | USD | 20251211 |
| Shandong Zhiheng | China national standards | MT | 1174.21 | USD | 20251211 |
| CNPC | China national standards | MT | 1216.65 | USD | 20251211 |
| Sinopec | China national standards | MT | 1216.65 | USD | 20251211 |