| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 952.76 | USD | 20250925 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 952.76 | USD | 20250924 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 952.76 | USD | 20250923 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 952.1 | USD | 20250922 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 975.71 | USD | 20250921 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 975.71 | USD | 20250920 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 975.71 | USD | 20250919 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 976.3 | USD | 20250918 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 967.24 | USD | 20250916 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 971.07 | USD | 20250915 |