| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 565.06 | USD | 20251129 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 565.06 | USD | 20251128 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 565.14 | USD | 20251127 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 565.0 | USD | 20251126 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 565.0 | USD | 20251126 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 564.76 | USD | 20251125 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 564.6 | USD | 20251124 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 564.37 | USD | 20251122 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 564.37 | USD | 20251121 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 564.37 | USD | 20251121 |