| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 998.51 | USD | 20250922 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 970.08 | USD | 20250921 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 970.08 | USD | 20250920 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 970.08 | USD | 20250919 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 970.67 | USD | 20250918 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 971.46 | USD | 20250916 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 971.07 | USD | 20250915 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 971.57 | USD | 20250914 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 971.57 | USD | 20250913 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 971.57 | USD | 20250912 |