| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 765.58 | USD | 20250826 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 765.87 | USD | 20250825 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 764.15 | USD | 20250824 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 764.15 | USD | 20250823 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 764.15 | USD | 20250822 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 764.52 | USD | 20250821 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 763.48 | USD | 20250820 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 763.74 | USD | 20250819 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 771.15 | USD | 20250818 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 770.62 | USD | 20250817 |