| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1108.35 | USD | 20251125 |
| Shandong Junfeng | China national standards | MT | 1058.93 | USD | 20251125 |
| Beijing Yanshan Petro | China national standards | MT | 1171.89 | USD | 20251125 |
| Jinan Qi Mat | China national standards | MT | 875.38 | USD | 20251125 |
| Shandong Junfeng | China national standards | MT | 917.74 | USD | 20251125 |
| Jinan Jinrihe Chem | China national standards | MT | 1002.46 | USD | 20251125 |
| Shandong Junfeng | China national standards | MT | 1058.93 | USD | 20251125 |
| Shandong Junfeng | China national standards | MT | 988.34 | USD | 20251125 |
| Lihuayi Weiyuan Chem | China national standards | MT | 875.38 | USD | 20251125 |
| Jinan Jinrihe Chem | China national standards | MT | 1002.46 | USD | 20251125 |