| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 971.72 | USD | 20250909 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 971.43 | USD | 20250908 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 970.96 | USD | 20250907 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 970.96 | USD | 20250906 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 970.96 | USD | 20250905 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 971.12 | USD | 20250904 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 970.61 | USD | 20250902 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 970.85 | USD | 20250901 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1055.89 | USD | 20250831 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1055.89 | USD | 20250830 |