| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 746.53 | USD | 20251015 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 746.26 | USD | 20251014 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 746.41 | USD | 20251013 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 745.97 | USD | 20251011 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 745.41 | USD | 20251009 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 745.9 | USD | 20251008 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 745.9 | USD | 20250930 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 745.54 | USD | 20250929 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 744.88 | USD | 20250928 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 744.88 | USD | 20250926 |