| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 874.82 | USD | 20251119 |
| Shandong Aite Chem | China national standards | MT | 1241.68 | USD | 20251119 |
| Qingdao Shengze Chem | China national standards | MT | 874.82 | USD | 20251119 |
| Shandong Langchem | China national standards | MT | 1128.8 | USD | 20251119 |
| Shandong Hongyang Chem | China national standards | MT | 907.27 | USD | 20251119 |
| Beijing Yanshan Petro | China national standards | MT | 907.27 | USD | 20251119 |
| Shandong Aite Chem | China national standards | MT | 1100.58 | USD | 20251119 |
| Lihuayi Weiyuan Chem | China national standards | MT | 994.75 | USD | 20251119 |
| Changzhou Qidi Chem | China national standards | MT | 987.92 | USD | 20251118 |
| Shandong Zhiheng | China national standards | MT | 907.47 | USD | 20251118 |