| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 864.88 | USD | 20250827 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 863.91 | USD | 20250826 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 801.0 | USD | 20250825 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 799.2 | USD | 20250824 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 799.2 | USD | 20250823 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 785.18 | USD | 20250822 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 785.56 | USD | 20250821 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 784.49 | USD | 20250820 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 784.76 | USD | 20250819 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 785.17 | USD | 20250818 |