| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 978.12 | USD | 20250930 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 977.65 | USD | 20250929 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 976.78 | USD | 20250928 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 976.78 | USD | 20250927 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 976.78 | USD | 20250926 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 978.09 | USD | 20250925 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 999.2 | USD | 20250924 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 999.2 | USD | 20250923 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 998.51 | USD | 20250922 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 998.2 | USD | 20250921 |