| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1002.98 | USD | 20251128 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1003.12 | USD | 20251127 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1002.88 | USD | 20251126 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1002.46 | USD | 20251125 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1002.46 | USD | 20251125 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1002.16 | USD | 20251124 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1001.76 | USD | 20251122 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1001.76 | USD | 20251121 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1001.34 | USD | 20251120 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1001.81 | USD | 20251119 |