| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 999.21 | USD | 20250915 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 999.89 | USD | 20250909 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 999.89 | USD | 20250909 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 999.59 | USD | 20250908 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 999.59 | USD | 20250908 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 999.1 | USD | 20250907 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 999.1 | USD | 20250906 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 998.99 | USD | 20250901 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 999.58 | USD | 20250830 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 999.58 | USD | 20250829 |