| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 788.43 | USD | 20250916 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 788.11 | USD | 20250915 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 788.52 | USD | 20250912 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 788.64 | USD | 20250909 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 788.64 | USD | 20250909 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 788.41 | USD | 20250908 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 788.41 | USD | 20250908 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 788.02 | USD | 20250907 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 788.02 | USD | 20250906 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 787.74 | USD | 20250902 |