| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1003.21 | USD | 20251209 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1003.34 | USD | 20251208 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1003.55 | USD | 20251206 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1003.55 | USD | 20251205 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1003.55 | USD | 20251205 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1003.77 | USD | 20251204 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1003.48 | USD | 20251203 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1002.91 | USD | 20251202 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1003.41 | USD | 20251201 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1002.98 | USD | 20251129 |