| Vendor | Spec | Unit | Price | Currency | Date |
| 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 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 965.09 | USD | 20250803 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 965.09 | USD | 20250802 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 965.09 | USD | 20250801 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 965.12 | USD | 20250731 |