| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 190.28 | USD | 20251017 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 190.23 | USD | 20251016 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 190.15 | USD | 20251015 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 190.08 | USD | 20251014 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 190.12 | USD | 20251013 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 190.01 | USD | 20251011 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 190.01 | USD | 20251010 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 190.01 | USD | 20251010 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 189.87 | USD | 20251009 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 189.87 | USD | 20251009 |