| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 749.13 | USD | 20251206 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 749.13 | USD | 20251205 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 749.13 | USD | 20251205 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 749.3 | USD | 20251204 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 749.07 | USD | 20251203 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 748.65 | USD | 20251202 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 749.02 | USD | 20251201 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 748.7 | USD | 20251129 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 748.7 | USD | 20251128 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 748.81 | USD | 20251127 |