| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 843.81 | USD | 20250922 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 843.55 | USD | 20250920 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 843.55 | USD | 20250919 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 844.75 | USD | 20250916 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 844.84 | USD | 20250912 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 844.73 | USD | 20250908 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 844.31 | USD | 20250907 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 844.45 | USD | 20250904 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 842.84 | USD | 20250826 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 843.16 | USD | 20250825 |