| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1060.09 | USD | 20251206 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1060.09 | USD | 20251205 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1060.33 | USD | 20251204 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1060.01 | USD | 20251203 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1059.41 | USD | 20251202 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1059.94 | USD | 20251201 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1059.49 | USD | 20251129 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1059.49 | USD | 20251128 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1059.64 | USD | 20251127 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1059.38 | USD | 20251126 |