| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 748.32 | USD | 20251115 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 748.32 | USD | 20251115 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 748.32 | USD | 20251114 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 747.9 | USD | 20251113 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 748.24 | USD | 20251112 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 747.89 | USD | 20251111 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 747.89 | USD | 20251111 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 748.0 | USD | 20251110 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 748.21 | USD | 20251108 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 748.21 | USD | 20251107 |