| Vendor | Spec | Unit | Price | Currency | Date |
| Beijing Yanshan Petro | China national standards | MT | 987.58 | USD | 20251101 |
| Lihuayi Weiyuan Chem | China national standards | MT | 931.15 | USD | 20251101 |
| Shandong Xima | China national standards | MT | 888.83 | USD | 20251101 |
| Shandong Qiangsen Chem | China national standards | MT | 931.15 | USD | 20251101 |
| Shandong Qiangsen Chem | China national standards | MT | 931.15 | USD | 20251101 |
| Shandong Qiangsen Chem | China national standards | MT | 931.15 | USD | 20251101 |
| Shandong Qiangsen Chem | China national standards | MT | 931.15 | USD | 20251101 |
| Shandong Langchem | China national standards | MT | 1100.45 | USD | 20251101 |
| Shandong Langchem | China national standards | MT | 1114.56 | USD | 20251101 |
| Shandong Langchem | China national standards | MT | 1114.56 | USD | 20251101 |