| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 759.95 | USD | 20250925 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 759.95 | USD | 20250924 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 759.95 | USD | 20250923 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 759.43 | USD | 20250922 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 759.19 | USD | 20250920 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 759.19 | USD | 20250919 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 759.65 | USD | 20250918 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 759.65 | USD | 20250918 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 760.27 | USD | 20250916 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 759.96 | USD | 20250915 |