| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 932.56 | USD | 20251209 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 932.68 | USD | 20251208 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 932.88 | USD | 20251206 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 932.88 | USD | 20251205 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 932.88 | USD | 20251205 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 933.09 | USD | 20251204 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 932.81 | USD | 20251203 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 932.28 | USD | 20251202 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 932.74 | USD | 20251201 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 932.35 | USD | 20251129 |