| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 746.16 | USD | 20250829 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 745.82 | USD | 20250828 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 745.82 | USD | 20250828 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 745.35 | USD | 20250827 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 744.51 | USD | 20250826 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 744.79 | USD | 20250825 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 743.12 | USD | 20250823 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 743.47 | USD | 20250821 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 742.46 | USD | 20250820 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 742.72 | USD | 20250819 |