| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 959.35 | USD | 20251027 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 958.72 | USD | 20251025 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 958.72 | USD | 20251024 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 958.85 | USD | 20251023 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 958.37 | USD | 20251022 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 958.69 | USD | 20251021 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 958.11 | USD | 20251020 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 958.43 | USD | 20251018 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 958.43 | USD | 20251017 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 958.18 | USD | 20251016 |