| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 747.9 | USD | 20251106 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 747.52 | USD | 20251105 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 747.69 | USD | 20251104 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 747.88 | USD | 20251103 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 747.74 | USD | 20251101 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 747.74 | USD | 20251031 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 747.91 | USD | 20251030 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 748.13 | USD | 20251029 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 748.0 | USD | 20251028 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 747.73 | USD | 20251027 |