| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 102.1 | USD | 20250719 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 102.1 | USD | 20250718 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 102.15 | USD | 20250717 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 102.06 | USD | 20250716 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 102.1 | USD | 20250715 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 102.11 | USD | 20250714 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 102.13 | USD | 20250712 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 102.13 | USD | 20250711 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 102.08 | USD | 20250710 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 102.04 | USD | 20250709 |