| Vendor | Spec | Unit | Price | Currency | Date |
| Zouping Tianlu Chemical Co., Ltd. | China national standards | MT | 98.47 | USD | 20250918 |
| Heze Jiangyuan Chemical Co., Ltd. | China national standards | MT | 87.22 | USD | 20250918 |
| Zhangzhou Xiangcheng San'an Chemical Co., Ltd. | China national standards | MT | 91.44 | USD | 20250918 |
| Gansu Yongshengyuan Trading Co., Ltd. | China national standards | MT | 56.19 | USD | 20250826 |
| Gansu Yongshengyuan Trading Co., Ltd. | China national standards | MT | 56.19 | USD | 20250826 |
| Gansu Yongshengyuan Trading Co., Ltd. | China national standards | MT | 56.05 | USD | 20250815 |
| Gansu Yongshengyuan Trading Co., Ltd. | China national standards | MT | 56.05 | USD | 20250815 |
| Gansu Yongshengyuan Trading Co., Ltd. | China national standards | MT | 56.06 | USD | 20250813 |
| Gansu Yongshengyuan Trading Co., Ltd. | China national standards | MT | 56.06 | USD | 20250813 |
| Gansu Yongshengyuan Trading Co., Ltd. | China national standards | MT | 56.01 | USD | 20250812 |