| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 451.62 | USD | 20251118 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 451.88 | USD | 20251117 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 353.03 | USD | 20251117 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 353.03 | USD | 20251117 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 451.88 | USD | 20251117 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 451.82 | USD | 20251115 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 352.98 | USD | 20251115 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 451.82 | USD | 20251114 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 352.98 | USD | 20251114 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 352.78 | USD | 20251113 |