| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | 90% | MT | 450.14 | USD | 20250902 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 633.01 | USD | 20250902 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 633.01 | USD | 20250902 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 464.21 | USD | 20250902 |
| Jiangsu Youlixin Chemical Co., Ltd. | China national standards | MT | 365.83 | USD | 20250901 |
| Jiangsu Youlixin Chemical Co., Ltd. | 90% | MT | 492.46 | USD | 20250901 |
| Shandong Langcheng Chemical Co., Ltd. | 90% | MT | 450.25 | USD | 20250901 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 405.22 | USD | 20250901 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 401.0 | USD | 20250901 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 633.16 | USD | 20250901 |