| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 888.56 | USD | 20251105 |
| Lihuayi Weiyuan Chem | China national standards | MT | 930.88 | USD | 20251105 |
| Qingdao Shengze Chem | China national standards | MT | 888.56 | USD | 20251105 |
| Shandong Jiaen Chem | China national standards | MT | 1093.07 | USD | 20251105 |
| Beijing Yanshan Petro | China national standards | MT | 888.56 | USD | 20251105 |
| Shandong Mingyu | China national standards | MT | 1050.76 | USD | 20251105 |
| Shandong Yuanhe Chem | China national standards | MT | 1071.92 | USD | 20251105 |
| Jinan Qi Mat | China national standards | MT | 888.56 | USD | 20251105 |
| Sinopec | China national standards | MT | 1029.6 | USD | 20251105 |
| Qingdao Shengze Chem | China national standards | MT | 888.56 | USD | 20251105 |