| Vendor | Spec | Unit | Price | Currency | Date |
| CNPC | China national standards | MT | 1269.13 | USD | 20260605 |
| Lihuayi Weiyuan Chem | China national standards | MT | 1283.8 | USD | 20260605 |
| Wanhua Chem | China national standards | MT | 1348.91 | USD | 20260604 |
| CNPC | China national standards | MT | 1290.27 | USD | 20260604 |
| Lihuayi Weiyuan Chem | China national standards | MT | 1297.6 | USD | 20260604 |
| CNPC | China national standards | MT | 1297.96 | USD | 20260603 |
| Lihuayi Weiyuan Chem | China national standards | MT | 1275.9 | USD | 20260602 |
| Wanhua Chem | China national standards | MT | 1342.29 | USD | 20260601 |
| Lihuayi Weiyuan Chem | China national standards | MT | 1266.01 | USD | 20260601 |
| Lihuayi Weiyuan Chem | China national standards | MT | 1298.11 | USD | 20260529 |