| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 762.75 | USD | 20251126 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 762.43 | USD | 20251125 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 762.43 | USD | 20251125 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 762.21 | USD | 20251124 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 761.9 | USD | 20251122 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 761.9 | USD | 20251121 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 761.58 | USD | 20251120 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 762.11 | USD | 20251118 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 762.54 | USD | 20251117 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 762.54 | USD | 20251117 |