| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 789.09 | USD | 20251016 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 788.79 | USD | 20251015 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 788.5 | USD | 20251014 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 788.65 | USD | 20251013 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 788.2 | USD | 20251011 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 787.6 | USD | 20251009 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 788.12 | USD | 20251008 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 788.12 | USD | 20250930 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 787.74 | USD | 20250929 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 787.05 | USD | 20250928 |