| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Angxin Chem | China national standards | MT | 990.84 | USD | 20250928 |
| Lihuayi Weiyuan Chem | China national standards | MT | 941.65 | USD | 20250928 |
| Beijing Yanshan Petro | China national standards | MT | 1166.52 | USD | 20250928 |
| Lihuayi Weiyuan Chem | China national standards | MT | 1152.46 | USD | 20250928 |
| Shanghai Guoke | China national standards | MT | 1276.14 | USD | 20250928 |
| Shandong Junfeng | China national standards | MT | 913.54 | USD | 20250928 |
| Shandong Junfeng | China national standards | MT | 1054.08 | USD | 20250928 |
| Shandong Junfeng | China national standards | MT | 983.81 | USD | 20250928 |
| Jinan Jinrihe Chem | China national standards | MT | 997.86 | USD | 20250928 |
| Shandong Langchem | China national standards | MT | 1096.24 | USD | 20250928 |