| Vendor | Spec | Unit | Price | Currency | Date |
| Hebei Pengfa Chemcal Co., Ltd. | China national standards | MT | 341.98 | USD | 20250924 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 365.9 | USD | 20250924 |
| China national standards | MT | 365.9 | USD | 20250924 | |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 365.9 | USD | 20250924 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 365.9 | USD | 20250924 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 337.76 | USD | 20250924 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 337.76 | USD | 20250924 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 337.76 | USD | 20250924 |
| China national standards | MT | 295.54 | USD | 20250924 | |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 408.12 | USD | 20250924 |