| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1059.08 | USD | 20251117 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1058.95 | USD | 20251115 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1058.95 | USD | 20251114 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1058.35 | USD | 20251113 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1058.83 | USD | 20251112 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1058.34 | USD | 20251111 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1058.48 | USD | 20251110 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1058.78 | USD | 20251108 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1058.78 | USD | 20251107 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1058.35 | USD | 20251106 |