| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Jinrihe Chem | China national standards | MT | 2821.99 | USD | 20251119 |
| Liaocheng Yuanze Chem | China national standards | MT | 1537.98 | USD | 20251119 |
| Shandong Dongyue | China national standards | MT | 1834.29 | USD | 20251119 |
| Shandong Zhenkun | China national standards | MT | 1453.32 | USD | 20251119 |
| Shandong Hongyang Chem | China national standards | MT | 1904.84 | USD | 20251119 |
| Shandong Dongyue | China national standards | MT | 1834.71 | USD | 20251118 |
| Liaocheng Yuanze Chem | China national standards | MT | 1538.33 | USD | 20251118 |
| Shandong Zhenkun | China national standards | MT | 1453.65 | USD | 20251118 |
| Jinan Jinrihe Chem | China national standards | MT | 2822.63 | USD | 20251118 |
| Shandong Hongyang Chem | China national standards | MT | 1905.27 | USD | 20251118 |