| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 875.76 | USD | 20251126 |
| Zibo Jinshuo Chem | China national standards | MT | 918.13 | USD | 20251126 |
| Beijing Yanshan Petro | China national standards | MT | 1059.38 | USD | 20251126 |
| Shanghai Wanzhong | China national standards | MT | 879.99 | USD | 20251126 |
| Shandong Langchem | China national standards | MT | 1115.41 | USD | 20251125 |
| Shandong Langchem | China national standards | MT | 1115.41 | USD | 20251125 |
| Shandong Qiangsen Chem | China national standards | MT | 931.86 | USD | 20251125 |
| Shanghai Guoke | China national standards | MT | 1282.02 | USD | 20251125 |
| Shandong Qiangsen Chem | China national standards | MT | 931.86 | USD | 20251125 |
| Shandong Qiangsen Chem | China national standards | MT | 931.86 | USD | 20251125 |