| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 756.74 | USD | 20250819 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 757.13 | USD | 20250818 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 756.61 | USD | 20250816 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 756.61 | USD | 20250816 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 756.61 | USD | 20250815 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 756.97 | USD | 20250814 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 756.83 | USD | 20250813 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 756.11 | USD | 20250812 |