| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 804.6 | USD | 20251029 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 804.6 | USD | 20251029 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 804.45 | USD | 20251028 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 804.45 | USD | 20251028 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 804.16 | USD | 20251027 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 804.16 | USD | 20251027 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 803.63 | USD | 20251025 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 803.63 | USD | 20251025 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 803.63 | USD | 20251024 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 803.63 | USD | 20251024 |