| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 462.7 | USD | 20250822 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 462.92 | USD | 20250821 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 462.29 | USD | 20250820 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 462.45 | USD | 20250819 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 462.69 | USD | 20250818 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 462.37 | USD | 20250817 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 462.37 | USD | 20250816 |