| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 816.96 | USD | 20251015 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 816.66 | USD | 20251014 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 816.82 | USD | 20251013 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 816.35 | USD | 20251011 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 816.35 | USD | 20251010 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 816.35 | USD | 20251010 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 815.73 | USD | 20251009 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 815.73 | USD | 20251009 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 816.27 | USD | 20251008 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 816.27 | USD | 20251008 |