| Vendor | Spec | Unit | Price | Currency | Date |
| 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 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 886.67 | USD | 20250904 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 886.21 | USD | 20250902 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 886.43 | USD | 20250901 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 886.95 | USD | 20250830 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 886.95 | USD | 20250829 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 886.54 | USD | 20250828 |