| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chem | China national standards | MT | 1904.98 | USD | 20251103 |
| Shandong Zhenkun | China national standards | MT | 1453.43 | USD | 20251103 |
| Shandong Luxi Chem | China national standards | MT | 1537.81 | USD | 20251102 |
| Shandong Dongyue | China national standards | MT | 1834.09 | USD | 20251102 |
| Shandong Dongyue | China national standards | MT | 1834.09 | USD | 20251101 |
| Shandong Luxi Chem | China national standards | MT | 1537.81 | USD | 20251101 |
| Shandong Yuxuan Chem | China national standards | MT | 1608.35 | USD | 20251031 |
| Liaocheng Yuanze Chem | China national standards | MT | 1537.81 | USD | 20251031 |
| Shandong Dongyue | China national standards | MT | 1834.09 | USD | 20251031 |
| Shandong Hongyang Chem | China national standards | MT | 1904.63 | USD | 20251031 |