| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 929.33 | USD | 20250913 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 929.33 | USD | 20250913 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 929.47 | USD | 20250909 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 929.47 | USD | 20250909 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 929.2 | USD | 20250908 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 929.2 | USD | 20250908 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 928.74 | USD | 20250906 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 928.74 | USD | 20250905 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 928.74 | USD | 20250905 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 928.41 | USD | 20250902 |