| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1107.51 | USD | 20251101 |
| Shandong Langchem | China national standards | MT | 1128.67 | USD | 20251101 |
| Shandong Aite Chem | China national standards | MT | 1241.53 | USD | 20251101 |
| Beijing Yanshan Petro | China national standards | MT | 1058.13 | USD | 20251101 |
| Shandong Aite Chem | China national standards | MT | 1100.45 | USD | 20251101 |
| Shandong Aite Chem | China national standards | MT | 1100.45 | USD | 20251101 |
| Lihuayi Weiyuan Chem | China national standards | MT | 1156.88 | USD | 20251101 |
| Beijing Yanshan Petro | China national standards | MT | 1170.99 | USD | 20251101 |
| Lihuayi Weiyuan Chem | China national standards | MT | 994.64 | USD | 20251101 |
| Beijing Yanshan Petro | China national standards | MT | 938.21 | USD | 20251031 |