| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 103.03 | USD | 20251028 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 102.92 | USD | 20251025 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 102.92 | USD | 20251024 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 102.94 | USD | 20251023 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 102.88 | USD | 20251022 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 102.92 | USD | 20251021 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 102.86 | USD | 20251020 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 102.89 | USD | 20251018 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 102.89 | USD | 20251017 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 102.86 | USD | 20251016 |