| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 790.34 | USD | 20251118 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 790.78 | USD | 20251117 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 790.68 | USD | 20251115 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 790.68 | USD | 20251114 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 790.23 | USD | 20251113 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 790.59 | USD | 20251112 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 790.22 | USD | 20251111 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 790.22 | USD | 20251111 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 790.34 | USD | 20251110 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 790.56 | USD | 20251108 |