| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1051.16 | USD | 20250813 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1036.15 | USD | 20250812 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1036.34 | USD | 20250811 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1036.68 | USD | 20250810 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1029.67 | USD | 20250809 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1001.65 | USD | 20250808 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 974.14 | USD | 20250807 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 966.26 | USD | 20250806 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 966.85 | USD | 20250805 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 966.45 | USD | 20250804 |