| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 450.52 | USD | 20250908 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 351.97 | USD | 20250908 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 633.54 | USD | 20250908 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 633.54 | USD | 20250908 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 464.37 | USD | 20250906 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 351.8 | USD | 20250906 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 450.3 | USD | 20250906 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 405.27 | USD | 20250906 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 401.05 | USD | 20250906 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 633.23 | USD | 20250906 |