| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 886.26 | USD | 20250918 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 886.99 | USD | 20250916 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 886.62 | USD | 20250915 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 887.09 | USD | 20250912 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 886.9 | USD | 20250911 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 887.22 | USD | 20250909 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 887.22 | USD | 20250909 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 886.96 | USD | 20250908 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 886.96 | USD | 20250908 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 886.52 | USD | 20250907 |