| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Jinrihe Chem | China national standards | MT | 2825.02 | USD | 20251126 |
| Liaocheng Yuanze Chem | China national standards | MT | 1538.98 | USD | 20251125 |
| Shandong Dongyue | China national standards | MT | 1835.48 | USD | 20251125 |
| Shandong Zhenkun | China national standards | MT | 1454.27 | USD | 20251125 |
| Shandong Yuxuan Chem | China national standards | MT | 1764.89 | USD | 20251125 |
| Jinan Jinrihe Chem | China national standards | MT | 2823.82 | USD | 20251125 |
| Shandong Zhenkun | China national standards | MT | 1453.84 | USD | 20251124 |
| Shandong Dongyue | China national standards | MT | 1834.94 | USD | 20251124 |
| Shandong Yuxuan Chem | China national standards | MT | 1764.37 | USD | 20251124 |
| Liaocheng Yuanze Chem | China national standards | MT | 1538.53 | USD | 20251124 |