| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 854.56 | USD | 20250810 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 854.56 | USD | 20250809 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 854.56 | USD | 20250808 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 855.0 | USD | 20250807 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 854.23 | USD | 20250806 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 854.75 | USD | 20250805 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 854.4 | USD | 20250804 |