| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1244.79 | USD | 20250718 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1245.43 | USD | 20250717 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1244.3 | USD | 20250716 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1244.79 | USD | 20250715 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1244.91 | USD | 20250714 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1244.91 | USD | 20250714 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1245.19 | USD | 20250712 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1245.19 | USD | 20250711 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1244.58 | USD | 20250710 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1244.04 | USD | 20250709 |