| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 997.74 | USD | 20250825 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 995.5 | USD | 20250823 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 995.5 | USD | 20250822 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 995.97 | USD | 20250821 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 994.62 | USD | 20250820 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 994.97 | USD | 20250819 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 995.49 | USD | 20250818 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 994.8 | USD | 20250816 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 994.8 | USD | 20250816 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 994.8 | USD | 20250815 |