| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1037.14 | USD | 20250813 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1064.16 | USD | 20250812 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1064.35 | USD | 20250811 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1064.69 | USD | 20250810 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1064.69 | USD | 20250809 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1081.51 | USD | 20250808 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1082.07 | USD | 20250807 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1081.1 | USD | 20250806 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1064.93 | USD | 20250805 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1064.5 | USD | 20250804 |